Index: src/read.c
===================================================================
--- src/read.c (nonexistent)
+++ src/read.c (revision 5)
@@ -0,0 +1,3476 @@
+/* Reading and parsing of makefiles for GNU Make.
+Copyright (C) 1988-2020 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "dep.h"
+#include "job.h"
+#include "os.h"
+#include "commands.h"
+#include "variable.h"
+#include "rule.h"
+#include "debug.h"
+#include "hash.h"
+
+
+#ifdef WINDOWS32
+#include <windows.h>
+#include "sub_proc.h"
+#else /* !WINDOWS32 */
+#ifndef _AMIGA
+#ifndef VMS
+#include <pwd.h>
+#else
+struct passwd *getpwnam (char *name);
+#endif
+#endif
+#endif /* !WINDOWS32 */
+
+/* A 'struct ebuffer' controls the origin of the makefile we are currently
+ eval'ing.
+*/
+
+struct ebuffer
+ {
+ char *buffer; /* Start of the current line in the buffer. */
+ char *bufnext; /* Start of the next line in the buffer. */
+ char *bufstart; /* Start of the entire buffer. */
+ size_t size; /* Malloc'd size of buffer. */
+ FILE *fp; /* File, or NULL if this is an internal buffer. */
+ floc floc; /* Info on the file in fp (if any). */
+ };
+
+/* Track the modifiers we can have on variable assignments */
+
+struct vmodifiers
+ {
+ unsigned int assign_v:1;
+ unsigned int define_v:1;
+ unsigned int undefine_v:1;
+ unsigned int override_v:1;
+ unsigned int private_v:1;
+ enum variable_export export_v ENUM_BITFIELD (2);
+ };
+
+/* Types of "words" that can be read in a makefile. */
+enum make_word_type
+ {
+ w_bogus, w_eol, w_static, w_variable, w_colon, w_dcolon, w_semicolon,
+ w_varassign, w_ampcolon, w_ampdcolon
+ };
+
+
+/* A 'struct conditionals' contains the information describing
+ all the active conditionals in a makefile.
+
+ The global variable 'conditionals' contains the conditionals
+ information for the current makefile. It is initialized from
+ the static structure 'toplevel_conditionals' and is later changed
+ to new structures for included makefiles. */
+
+struct conditionals
+ {
+ unsigned int if_cmds; /* Depth of conditional nesting. */
+ unsigned int allocated; /* Elts allocated in following arrays. */
+ char *ignoring; /* Are we ignoring or interpreting?
+ 0=interpreting, 1=not yet interpreted,
+ 2=already interpreted */
+ char *seen_else; /* Have we already seen an 'else'? */
+ };
+
+static struct conditionals toplevel_conditionals;
+static struct conditionals *conditionals = &toplevel_conditionals;
+
+
+/* Default directories to search for include files in */
+
+static const char *default_include_directories[] =
+ {
+#if defined(WINDOWS32) && !defined(INCLUDEDIR)
+/* This completely up to the user when they install MSVC or other packages.
+ This is defined as a placeholder. */
+# define INCLUDEDIR "."
+#endif
+ INCLUDEDIR,
+#ifndef _AMIGA
+ "/usr/gnu/include",
+ "/usr/local/include",
+ "/usr/include",
+#endif
+ 0
+ };
+
+/* List of directories to search for include files in */
+
+static const char **include_directories;
+
+/* Maximum length of an element of the above. */
+
+static size_t max_incl_len;
+
+/* The filename and pointer to line number of the
+ makefile currently being read in. */
+
+const floc *reading_file = 0;
+
+/* The chain of files read by read_all_makefiles. */
+
+static struct goaldep *read_files = 0;
+
+static struct goaldep *eval_makefile (const char *filename, unsigned short flags);
+static void eval (struct ebuffer *buffer, int flags);
+
+static long readline (struct ebuffer *ebuf);
+static void do_undefine (char *name, enum variable_origin origin,
+ struct ebuffer *ebuf);
+static struct variable *do_define (char *name, enum variable_origin origin,
+ struct ebuffer *ebuf);
+static int conditional_line (char *line, size_t len, const floc *flocp);
+static void check_specials (const struct nameseq *file, int set_default);
+static void record_files (struct nameseq *filenames, int are_also_makes,
+ const char *pattern,
+ const char *pattern_percent, char *depstr,
+ unsigned int cmds_started, char *commands,
+ size_t commands_idx, int two_colon,
+ char prefix, const floc *flocp);
+static void record_target_var (struct nameseq *filenames, char *defn,
+ enum variable_origin origin,
+ struct vmodifiers *vmod,
+ const floc *flocp);
+static enum make_word_type get_next_mword (char *buffer,
+ char **startp, size_t *length);
+static void remove_comments (char *line);
+static char *find_map_unquote (char *string, int map);
+static char *find_char_unquote (char *string, int stop);
+static char *unescape_char (char *string, int c);
+
+
+/* Compare a word, both length and contents.
+ P must point to the word to be tested, and WLEN must be the length.
+*/
+#define word1eq(s) (wlen == CSTRLEN (s) && strneq (s, p, CSTRLEN (s)))
+
+
+/* Read in all the makefiles and return a chain of targets to rebuild. */
+
+struct goaldep *
+read_all_makefiles (const char **makefiles)
+{
+ unsigned int num_makefiles = 0;
+
+ /* Create *_LIST variables, to hold the makefiles, targets, and variables
+ we will be reading. */
+
+ define_variable_cname ("MAKEFILE_LIST", "", o_file, 0);
+
+ DB (DB_BASIC, (_("Reading makefiles...\n")));
+
+ /* If there's a non-null variable MAKEFILES, its value is a list of
+ files to read first thing. But don't let it prevent reading the
+ default makefiles and don't let the default goal come from there. */
+
+ {
+ char *value;
+ char *name, *p;
+ size_t length;
+
+ {
+ /* Turn off --warn-undefined-variables while we expand MAKEFILES. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ value = allocated_variable_expand ("$(MAKEFILES)");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ /* Set NAME to the start of next token and LENGTH to its length.
+ MAKEFILES is updated for finding remaining tokens. */
+ p = value;
+
+ while ((name = find_next_token ((const char **)&p, &length)) != 0)
+ {
+ if (*p != '\0')
+ *p++ = '\0';
+ eval_makefile (strcache_add (name), RM_NO_DEFAULT_GOAL|RM_INCLUDED|RM_DONTCARE);
+ }
+
+ free (value);
+ }
+
+ /* Read makefiles specified with -f switches. */
+
+ if (makefiles != 0)
+ while (*makefiles != 0)
+ {
+ struct goaldep *d = eval_makefile (*makefiles, 0);
+
+ if (errno)
+ perror_with_name ("", *makefiles);
+
+ /* Reuse the storage allocated for the read_file. */
+ *makefiles = dep_name (d);
+ ++num_makefiles;
+ ++makefiles;
+ }
+
+ /* If there were no -f switches, try the default names. */
+
+ if (num_makefiles == 0)
+ {
+ static const char *default_makefiles[] =
+#ifdef VMS
+ /* all lower case since readdir() (the vms version) 'lowercasifies' */
+ /* TODO: Above is not always true, this needs more work */
+ { "makefile.vms", "gnumakefile", "makefile", 0 };
+#else
+#ifdef _AMIGA
+ { "GNUmakefile", "Makefile", "SMakefile", 0 };
+#else /* !Amiga && !VMS */
+#ifdef WINDOWS32
+ { "GNUmakefile", "makefile", "Makefile", "makefile.mak", 0 };
+#else /* !Amiga && !VMS && !WINDOWS32 */
+ { "GNUmakefile", "makefile", "Makefile", 0 };
+#endif /* !Amiga && !VMS && !WINDOWS32 */
+#endif /* AMIGA */
+#endif /* VMS */
+ const char **p = default_makefiles;
+ while (*p != 0 && !file_exists_p (*p))
+ ++p;
+
+ if (*p != 0)
+ {
+ eval_makefile (*p, 0);
+ if (errno)
+ perror_with_name ("", *p);
+ }
+ else
+ {
+ /* No default makefile was found. Add the default makefiles to the
+ 'read_files' chain so they will be updated if possible. */
+ for (p = default_makefiles; *p != 0; ++p)
+ {
+ struct goaldep *d = alloc_goaldep ();
+ d->file = enter_file (strcache_add (*p));
+ /* Tell update_goal_chain to bail out as soon as this file is
+ made, and main not to die if we can't make this file. */
+ d->flags = RM_DONTCARE;
+ d->next = read_files;
+ read_files = d;
+ }
+ }
+ }
+
+ return read_files;
+}
+
+/* Install a new conditional and return the previous one. */
+
+static struct conditionals *
+install_conditionals (struct conditionals *new)
+{
+ struct conditionals *save = conditionals;
+
+ memset (new, '\0', sizeof (*new));
+ conditionals = new;
+
+ return save;
+}
+
+/* Free the current conditionals and reinstate a saved one. */
+
+static void
+restore_conditionals (struct conditionals *saved)
+{
+ /* Free any space allocated by conditional_line. */
+ free (conditionals->ignoring);
+ free (conditionals->seen_else);
+
+ /* Restore state. */
+ conditionals = saved;
+}
+
+static struct goaldep *
+eval_makefile (const char *filename, unsigned short flags)
+{
+ struct goaldep *deps;
+ struct ebuffer ebuf;
+ const floc *curfile;
+ char *expanded = 0;
+
+ /* Create a new goaldep entry. */
+ deps = alloc_goaldep ();
+ deps->next = read_files;
+ read_files = deps;
+
+ ebuf.floc.filenm = filename; /* Use the original file name. */
+ ebuf.floc.lineno = 1;
+ ebuf.floc.offset = 0;
+
+ if (ISDB (DB_VERBOSE))
+ {
+ printf (_("Reading makefile '%s'"), filename);
+ if (flags & RM_NO_DEFAULT_GOAL)
+ printf (_(" (no default goal)"));
+ if (flags & RM_INCLUDED)
+ printf (_(" (search path)"));
+ if (flags & RM_DONTCARE)
+ printf (_(" (don't care)"));
+ if (flags & RM_NO_TILDE)
+ printf (_(" (no ~ expansion)"));
+ puts ("...");
+ }
+
+ /* First, get a stream to read. */
+
+ /* Expand ~ in FILENAME unless it came from 'include',
+ in which case it was already done. */
+ if (!(flags & RM_NO_TILDE) && filename[0] == '~')
+ {
+ expanded = tilde_expand (filename);
+ if (expanded != 0)
+ filename = expanded;
+ }
+
+ errno = 0;
+ ENULLLOOP (ebuf.fp, fopen (filename, "r"));
+ deps->error = errno;
+
+ /* Check for unrecoverable errors: out of mem or FILE slots. */
+ switch (deps->error)
+ {
+#ifdef EMFILE
+ case EMFILE:
+#endif
+#ifdef ENFILE
+ case ENFILE:
+#endif
+ case ENOMEM:
+ {
+ const char *err = strerror (deps->error);
+ OS (fatal, reading_file, "%s", err);
+ }
+ }
+
+ /* If the makefile wasn't found and it's either a makefile from
+ the 'MAKEFILES' variable or an included makefile,
+ search the included makefile search path for this makefile. */
+ if (ebuf.fp == 0 && (flags & RM_INCLUDED) && *filename != '/')
+ {
+ unsigned int i;
+ for (i = 0; include_directories[i] != 0; ++i)
+ {
+ const char *included = concat (3, include_directories[i],
+ "/", filename);
+ ebuf.fp = fopen (included, "r");
+ if (ebuf.fp)
+ {
+ filename = included;
+ break;
+ }
+ }
+ }
+
+ /* Enter the final name for this makefile as a goaldep. */
+ filename = strcache_add (filename);
+ deps->file = lookup_file (filename);
+ if (deps->file == 0)
+ deps->file = enter_file (filename);
+ filename = deps->file->name;
+ deps->flags = flags;
+
+ free (expanded);
+
+ if (ebuf.fp == 0)
+ {
+ /* The makefile can't be read at all, give up entirely.
+ If we did some searching errno has the error from the last attempt,
+ rather from FILENAME itself: recover the more accurate one. */
+ errno = deps->error;
+ deps->file->last_mtime = NONEXISTENT_MTIME;
+ return deps;
+ }
+
+ /* Success; clear errno. */
+ deps->error = 0;
+
+ /* If we tried and failed to read the included file before but this
+ time we succeeded, reset the last mtime. */
+ if (deps->file->last_mtime == NONEXISTENT_MTIME)
+ deps->file->last_mtime = 0;
+
+ /* Avoid leaking the makefile to children. */
+ fd_noinherit (fileno (ebuf.fp));
+
+ /* Add this makefile to the list. */
+ do_variable_definition (&ebuf.floc, "MAKEFILE_LIST", filename, o_file,
+ f_append_value, 0);
+
+ /* Evaluate the makefile */
+
+ ebuf.size = 200;
+ ebuf.buffer = ebuf.bufnext = ebuf.bufstart = xmalloc (ebuf.size);
+
+ curfile = reading_file;
+ reading_file = &ebuf.floc;
+
+ eval (&ebuf, !(flags & RM_NO_DEFAULT_GOAL));
+
+ reading_file = curfile;
+
+ fclose (ebuf.fp);
+
+ free (ebuf.bufstart);
+ free_alloca ();
+
+ errno = 0;
+ return deps;
+}
+
+void
+eval_buffer (char *buffer, const floc *flocp)
+{
+ struct ebuffer ebuf;
+ struct conditionals *saved;
+ struct conditionals new;
+ const floc *curfile;
+
+ /* Evaluate the buffer */
+
+ ebuf.size = strlen (buffer);
+ ebuf.buffer = ebuf.bufnext = ebuf.bufstart = buffer;
+ ebuf.fp = NULL;
+
+ if (flocp)
+ ebuf.floc = *flocp;
+ else if (reading_file)
+ ebuf.floc = *reading_file;
+ else
+ {
+ ebuf.floc.filenm = NULL;
+ ebuf.floc.lineno = 1;
+ ebuf.floc.offset = 0;
+ }
+
+ curfile = reading_file;
+ reading_file = &ebuf.floc;
+
+ saved = install_conditionals (&new);
+
+ eval (&ebuf, 1);
+
+ restore_conditionals (saved);
+
+ reading_file = curfile;
+
+ free_alloca ();
+}
+
+/* Check LINE to see if it's a variable assignment or undefine.
+
+ It might use one of the modifiers "export", "override", "private", or it
+ might be one of the conditional tokens like "ifdef", "include", etc.
+
+ If it's not a variable assignment or undefine, VMOD.V_ASSIGN is 0.
+ Returns LINE.
+
+ Returns a pointer to the first non-modifier character, and sets VMOD
+ based on the modifiers found if any, plus V_ASSIGN is 1.
+ */
+static char *
+parse_var_assignment (const char *line, int targvar, struct vmodifiers *vmod)
+{
+ const char *p;
+ memset (vmod, '\0', sizeof (*vmod));
+
+ /* Find the start of the next token. If there isn't one we're done. */
+ NEXT_TOKEN (line);
+ if (*line == '\0')
+ return (char *) line;
+
+ p = line;
+ while (1)
+ {
+ size_t wlen;
+ const char *p2;
+ struct variable v;
+
+ p2 = parse_variable_definition (p, &v);
+
+ /* If this is a variable assignment, we're done. */
+ if (p2)
+ break;
+
+ /* It's not a variable; see if it's a modifier. */
+ p2 = end_of_token (p);
+ wlen = p2 - p;
+
+ if (word1eq ("export"))
+ vmod->export_v = v_export;
+ else if (word1eq ("unexport"))
+ vmod->export_v = v_noexport;
+ else if (word1eq ("override"))
+ vmod->override_v = 1;
+ else if (word1eq ("private"))
+ vmod->private_v = 1;
+ else if (!targvar && word1eq ("define"))
+ {
+ /* We can't have modifiers after 'define' */
+ vmod->define_v = 1;
+ p = next_token (p2);
+ break;
+ }
+ else if (!targvar && word1eq ("undefine"))
+ {
+ /* We can't have modifiers after 'undefine' */
+ vmod->undefine_v = 1;
+ p = next_token (p2);
+ break;
+ }
+ else
+ /* Not a variable or modifier: this is not a variable assignment. */
+ return (char *) line;
+
+ /* It was a modifier. Try the next word. */
+ p = next_token (p2);
+ if (*p == '\0')
+ return (char *) line;
+ }
+
+ /* Found a variable assignment or undefine. */
+ vmod->assign_v = 1;
+ return (char *)p;
+}
+
+
+/* Read file FILENAME as a makefile and add its contents to the data base.
+
+ SET_DEFAULT is true if we are allowed to set the default goal. */
+
+static void
+eval (struct ebuffer *ebuf, int set_default)
+{
+ char *collapsed = 0;
+ size_t collapsed_length = 0;
+ size_t commands_len = 200;
+ char *commands;
+ size_t commands_idx = 0;
+ unsigned int cmds_started, tgts_started;
+ int ignoring = 0, in_ignored_define = 0;
+ int no_targets = 0; /* Set when reading a rule without targets. */
+ int also_make_targets = 0; /* Set when reading grouped targets. */
+ struct nameseq *filenames = 0;
+ char *depstr = 0;
+ long nlines = 0;
+ int two_colon = 0;
+ char prefix = cmd_prefix;
+ const char *pattern = 0;
+ const char *pattern_percent;
+ floc *fstart;
+ floc fi;
+
+#define record_waiting_files() \
+ do \
+ { \
+ if (filenames != 0) \
+ { \
+ fi.lineno = tgts_started; \
+ fi.offset = 0; \
+ record_files (filenames, also_make_targets, pattern, \
+ pattern_percent, depstr, \
+ cmds_started, commands, commands_idx, two_colon, \
+ prefix, &fi); \
+ filenames = 0; \
+ } \
+ commands_idx = 0; \
+ no_targets = 0; \
+ pattern = 0; \
+ also_make_targets = 0; \
+ } while (0)
+
+ pattern_percent = 0;
+ cmds_started = tgts_started = 1;
+
+ fstart = &ebuf->floc;
+ fi.filenm = ebuf->floc.filenm;
+
+ /* Loop over lines in the file.
+ The strategy is to accumulate target names in FILENAMES, dependencies
+ in DEPS and commands in COMMANDS. These are used to define a rule
+ when the start of the next rule (or eof) is encountered.
+
+ When you see a "continue" in the loop below, that means we are moving on
+ to the next line. If you see record_waiting_files(), then the statement
+ we are parsing also finishes the previous rule. */
+
+ commands = xmalloc (200);
+
+ while (1)
+ {
+ size_t linelen;
+ char *line;
+ size_t wlen;
+ char *p;
+ char *p2;
+ struct vmodifiers vmod;
+
+ /* At the top of this loop, we are starting a brand new line. */
+ /* Grab the next line to be evaluated */
+ ebuf->floc.lineno += nlines;
+ nlines = readline (ebuf);
+
+ /* If there is nothing left to eval, we're done. */
+ if (nlines < 0)
+ break;
+
+ line = ebuf->buffer;
+
+ /* If this is the first line, check for a UTF-8 BOM and skip it. */
+ if (ebuf->floc.lineno == 1)
+ {
+ unsigned char *ul = (unsigned char *) line;
+ if (ul[0] == 0xEF && ul[1] == 0xBB && ul[2] == 0xBF)
+ {
+ line += 3;
+ if (ISDB(DB_BASIC))
+ {
+ if (ebuf->floc.filenm)
+ printf (_("Skipping UTF-8 BOM in makefile '%s'\n"),
+ ebuf->floc.filenm);
+ else
+ printf (_("Skipping UTF-8 BOM in makefile buffer\n"));
+ }
+ }
+ }
+ /* If this line is empty, skip it. */
+ if (line[0] == '\0')
+ continue;
+
+ linelen = strlen (line);
+
+ /* Check for a shell command line first.
+ If it is not one, we can stop treating cmd_prefix specially. */
+ if (line[0] == cmd_prefix)
+ {
+ if (no_targets)
+ /* Ignore the commands in a rule with no targets. */
+ continue;
+
+ /* If there is no preceding rule line, don't treat this line
+ as a command, even though it begins with a recipe prefix.
+ SunOS 4 make appears to behave this way. */
+
+ if (filenames != 0)
+ {
+ if (ignoring)
+ /* Yep, this is a shell command, and we don't care. */
+ continue;
+
+ if (commands_idx == 0)
+ cmds_started = ebuf->floc.lineno;
+
+ /* Append this command line to the line being accumulated.
+ Skip the initial command prefix character. */
+ if (linelen + commands_idx > commands_len)
+ {
+ commands_len = (linelen + commands_idx) * 2;
+ commands = xrealloc (commands, commands_len);
+ }
+ memcpy (&commands[commands_idx], line + 1, linelen - 1);
+ commands_idx += linelen - 1;
+ commands[commands_idx++] = '\n';
+ continue;
+ }
+ }
+
+ /* This line is not a shell command line. Don't worry about whitespace.
+ Get more space if we need it; we don't need to preserve the current
+ contents of the buffer. */
+
+ if (collapsed_length < linelen+1)
+ {
+ collapsed_length = linelen+1;
+ free (collapsed);
+ /* Don't need xrealloc: we don't need to preserve the content. */
+ collapsed = xmalloc (collapsed_length);
+ }
+ strcpy (collapsed, line);
+ /* Collapse continuation lines. */
+ collapse_continuations (collapsed);
+ remove_comments (collapsed);
+
+ /* Get rid if starting space (including formfeed, vtab, etc.) */
+ p = collapsed;
+ NEXT_TOKEN (p);
+
+ /* See if this is a variable assignment. We need to do this early, to
+ allow variables with names like 'ifdef', 'export', 'private', etc. */
+ p = parse_var_assignment (p, 0, &vmod);
+ if (vmod.assign_v)
+ {
+ struct variable *v;
+ enum variable_origin origin = vmod.override_v ? o_override : o_file;
+
+ /* If we're ignoring then we're done now. */
+ if (ignoring)
+ {
+ if (vmod.define_v)
+ in_ignored_define = 1;
+ continue;
+ }
+
+ /* Variable assignment ends the previous rule. */
+ record_waiting_files ();
+
+ if (vmod.undefine_v)
+ {
+ do_undefine (p, origin, ebuf);
+ continue;
+ }
+ else if (vmod.define_v)
+ v = do_define (p, origin, ebuf);
+ else
+ v = try_variable_definition (fstart, p, origin, 0);
+
+ assert (v != NULL);
+
+ if (vmod.export_v != v_default)
+ v->export = vmod.export_v;
+ if (vmod.private_v)
+ v->private_var = 1;
+
+ /* This line has been dealt with. */
+ continue;
+ }
+
+ /* If this line is completely empty, ignore it. */
+ if (*p == '\0')
+ continue;
+
+ p2 = end_of_token (p);
+ wlen = p2 - p;
+ NEXT_TOKEN (p2);
+
+ /* If we're in an ignored define, skip this line (but maybe get out). */
+ if (in_ignored_define)
+ {
+ /* See if this is an endef line (plus optional comment). */
+ if (word1eq ("endef") && STOP_SET (*p2, MAP_COMMENT|MAP_NUL))
+ in_ignored_define = 0;
+
+ continue;
+ }
+
+ /* Check for conditional state changes. */
+ {
+ int i = conditional_line (p, wlen, fstart);
+ if (i != -2)
+ {
+ if (i == -1)
+ O (fatal, fstart, _("invalid syntax in conditional"));
+
+ ignoring = i;
+ continue;
+ }
+ }
+
+ /* Nothing to see here... move along. */
+ if (ignoring)
+ continue;
+
+ /* Manage the "export" keyword used outside of variable assignment
+ as well as "unexport". */
+ if (word1eq ("export") || word1eq ("unexport"))
+ {
+ int exporting = *p == 'u' ? 0 : 1;
+
+ /* Export/unexport ends the previous rule. */
+ record_waiting_files ();
+
+ /* (un)export by itself causes everything to be (un)exported. */
+ if (*p2 == '\0')
+ export_all_variables = exporting;
+ else
+ {
+ size_t l;
+ const char *cp;
+ char *ap;
+
+ /* Expand the line so we can use indirect and constructed
+ variable names in an (un)export command. */
+ cp = ap = allocated_variable_expand (p2);
+
+ for (p = find_next_token (&cp, &l); p != 0;
+ p = find_next_token (&cp, &l))
+ {
+ struct variable *v = lookup_variable (p, l);
+ if (v == 0)
+ v = define_variable_global (p, l, "", o_file, 0, fstart);
+ v->export = exporting ? v_export : v_noexport;
+ }
+
+ free (ap);
+ }
+ continue;
+ }
+
+ /* Handle the special syntax for vpath. */
+ if (word1eq ("vpath"))
+ {
+ const char *cp;
+ char *vpat;
+ size_t l;
+
+ /* vpath ends the previous rule. */
+ record_waiting_files ();
+
+ cp = variable_expand (p2);
+ p = find_next_token (&cp, &l);
+ if (p != 0)
+ {
+ vpat = xstrndup (p, l);
+ p = find_next_token (&cp, &l);
+ /* No searchpath means remove all previous
+ selective VPATH's with the same pattern. */
+ }
+ else
+ /* No pattern means remove all previous selective VPATH's. */
+ vpat = 0;
+ construct_vpath_list (vpat, p);
+ free (vpat);
+
+ continue;
+ }
+
+ /* Handle include and variants. */
+ if (word1eq ("include") || word1eq ("-include") || word1eq ("sinclude"))
+ {
+ /* We have found an 'include' line specifying a nested
+ makefile to be read at this point. */
+ struct conditionals *save;
+ struct conditionals new_conditionals;
+ struct nameseq *files;
+ /* "-include" (vs "include") says no error if the file does not
+ exist. "sinclude" is an alias for this from SGI. */
+ int noerror = (p[0] != 'i');
+
+ /* Include ends the previous rule. */
+ record_waiting_files ();
+
+ p = allocated_variable_expand (p2);
+
+ /* If no filenames, it's a no-op. */
+ if (*p == '\0')
+ {
+ free (p);
+ continue;
+ }
+
+ /* Parse the list of file names. Don't expand archive references! */
+ p2 = p;
+ files = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_NUL, NULL,
+ PARSEFS_NOAR);
+ free (p);
+
+ /* Save the state of conditionals and start
+ the included makefile with a clean slate. */
+ save = install_conditionals (&new_conditionals);
+
+ /* Record the rules that are waiting so they will determine
+ the default goal before those in the included makefile. */
+ record_waiting_files ();
+
+ /* Read each included makefile. */
+ while (files != 0)
+ {
+ struct nameseq *next = files->next;
+ unsigned short flags = (RM_INCLUDED | RM_NO_TILDE
+ | (noerror ? RM_DONTCARE : 0)
+ | (set_default ? 0 : RM_NO_DEFAULT_GOAL));
+
+ struct goaldep *d = eval_makefile (files->name, flags);
+
+ if (errno)
+ d->floc = *fstart;
+
+ free_ns (files);
+ files = next;
+ }
+
+ /* Restore conditional state. */
+ restore_conditionals (save);
+
+ continue;
+ }
+
+ /* Handle the load operations. */
+ if (word1eq ("load") || word1eq ("-load"))
+ {
+ /* A 'load' line specifies a dynamic object to load. */
+ struct nameseq *files;
+ int noerror = (p[0] == '-');
+
+ /* Load ends the previous rule. */
+ record_waiting_files ();
+
+ p = allocated_variable_expand (p2);
+
+ /* If no filenames, it's a no-op. */
+ if (*p == '\0')
+ {
+ free (p);
+ continue;
+ }
+
+ /* Parse the list of file names.
+ Don't expand archive references or strip "./" */
+ p2 = p;
+ files = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_NUL, NULL,
+ PARSEFS_NOAR);
+ free (p);
+
+ /* Load each file. */
+ while (files != 0)
+ {
+ struct nameseq *next = files->next;
+ const char *name = files->name;
+ struct goaldep *deps;
+ int r;
+
+ /* Load the file. 0 means failure. */
+ r = load_file (&ebuf->floc, &name, noerror);
+ if (! r && ! noerror)
+ OS (fatal, &ebuf->floc, _("%s: failed to load"), name);
+
+ free_ns (files);
+ files = next;
+
+ /* Return of -1 means a special load: don't rebuild it. */
+ if (r == -1)
+ continue;
+
+ /* It succeeded, so add it to the list "to be rebuilt". */
+ deps = alloc_goaldep ();
+ deps->next = read_files;
+ read_files = deps;
+ deps->file = lookup_file (name);
+ if (deps->file == 0)
+ deps->file = enter_file (name);
+ deps->file->loaded = 1;
+ }
+
+ continue;
+ }
+
+ /* This line starts with a tab but was not caught above because there
+ was no preceding target, and the line might have been usable as a
+ variable definition. But now we know it is definitely lossage. */
+ if (line[0] == cmd_prefix)
+ O (fatal, fstart, _("recipe commences before first target"));
+
+ /* This line describes some target files. This is complicated by
+ the existence of target-specific variables, because we can't
+ expand the entire line until we know if we have one or not. So
+ we expand the line word by word until we find the first ':',
+ then check to see if it's a target-specific variable.
+
+ In this algorithm, 'lb_next' will point to the beginning of the
+ unexpanded parts of the input buffer, while 'p2' points to the
+ parts of the expanded buffer we haven't searched yet. */
+
+ {
+ enum make_word_type wtype;
+ char *cmdleft, *semip, *lb_next;
+ size_t plen = 0;
+ char *colonp;
+ const char *end, *beg; /* Helpers for whitespace stripping. */
+
+ /* Record the previous rule. */
+
+ record_waiting_files ();
+ tgts_started = fstart->lineno;
+
+ /* Search the line for an unquoted ; that is not after an
+ unquoted #. */
+ cmdleft = find_map_unquote (line, MAP_SEMI|MAP_COMMENT|MAP_VARIABLE);
+ if (cmdleft != 0 && *cmdleft == '#')
+ {
+ /* We found a comment before a semicolon. */
+ *cmdleft = '\0';
+ cmdleft = 0;
+ }
+ else if (cmdleft != 0)
+ /* Found one. Cut the line short there before expanding it. */
+ *(cmdleft++) = '\0';
+ semip = cmdleft;
+
+ collapse_continuations (line);
+
+ /* We can't expand the entire line, since if it's a per-target
+ variable we don't want to expand it. So, walk from the
+ beginning, expanding as we go, and looking for "interesting"
+ chars. The first word is always expandable. */
+ wtype = get_next_mword (line, &lb_next, &wlen);
+ switch (wtype)
+ {
+ case w_eol:
+ if (cmdleft != 0)
+ O (fatal, fstart, _("missing rule before recipe"));
+ /* This line contained something but turned out to be nothing
+ but whitespace (a comment?). */
+ continue;
+
+ case w_colon:
+ case w_dcolon:
+ case w_ampcolon:
+ case w_ampdcolon:
+ /* We accept and ignore rules without targets for
+ compatibility with SunOS 4 make. */
+ no_targets = 1;
+ continue;
+
+ default:
+ break;
+ }
+
+ p2 = variable_expand_string (NULL, lb_next, wlen);
+
+ while (1)
+ {
+ lb_next += wlen;
+ if (cmdleft == 0)
+ {
+ /* Look for a semicolon in the expanded line. */
+ cmdleft = find_char_unquote (p2, ';');
+
+ if (cmdleft != 0)
+ {
+ size_t p2_off = p2 - variable_buffer;
+ size_t cmd_off = cmdleft - variable_buffer;
+ char *pend = p2 + strlen (p2);
+
+ /* Append any remnants of lb, then cut the line short
+ at the semicolon. */
+ *cmdleft = '\0';
+
+ /* One school of thought says that you shouldn't expand
+ here, but merely copy, since now you're beyond a ";"
+ and into a command script. However, the old parser
+ expanded the whole line, so we continue that for
+ backwards-compatibility. Also, it wouldn't be
+ entirely consistent, since we do an unconditional
+ expand below once we know we don't have a
+ target-specific variable. */
+ variable_expand_string (pend, lb_next, SIZE_MAX);
+ lb_next += strlen (lb_next);
+ p2 = variable_buffer + p2_off;
+ cmdleft = variable_buffer + cmd_off + 1;
+ }
+ }
+
+ colonp = find_char_unquote (p2, ':');
+
+#ifdef HAVE_DOS_PATHS
+ if (colonp > p2)
+ /* The drive spec brain-damage strikes again...
+ Note that the only separators of targets in this context are
+ whitespace and a left paren. If others are possible, add them
+ to the string in the call to strchr. */
+ while (colonp && (colonp[1] == '/' || colonp[1] == '\\') &&
+ isalpha ((unsigned char) colonp[-1]) &&
+ (colonp == p2 + 1 || strchr (" \t(", colonp[-2]) != 0))
+ colonp = find_char_unquote (colonp + 1, ':');
+#endif
+
+ if (colonp)
+ {
+ /* If the previous character is '&', back up before '&:' */
+ if (colonp > p2 && colonp[-1] == '&')
+ --colonp;
+
+ break;
+ }
+
+ wtype = get_next_mword (lb_next, &lb_next, &wlen);
+ if (wtype == w_eol)
+ break;
+
+ p2 += strlen (p2);
+ *(p2++) = ' ';
+ p2 = variable_expand_string (p2, lb_next, wlen);
+ /* We don't need to worry about cmdleft here, because if it was
+ found in the variable_buffer the entire buffer has already
+ been expanded... we'll never get here. */
+ }
+
+ p2 = next_token (variable_buffer);
+
+ /* If the word we're looking at is EOL, see if there's _anything_
+ on the line. If not, a variable expanded to nothing, so ignore
+ it. If so, we can't parse this line so punt. */
+ if (wtype == w_eol)
+ {
+ if (*p2 == '\0')
+ continue;
+
+ /* There's no need to be ivory-tower about this: check for
+ one of the most common bugs found in makefiles... */
+ if (cmd_prefix == '\t' && strneq (line, " ", 8))
+ O (fatal, fstart, _("missing separator (did you mean TAB instead of 8 spaces?)"));
+ else
+ O (fatal, fstart, _("missing separator"));
+ }
+
+ {
+ char save = *colonp;
+
+ /* If we have &:, it specifies that the targets are understood to be
+ updated/created together by a single invocation of the recipe. */
+ if (save == '&')
+ also_make_targets = 1;
+
+ /* Make the colon the end-of-string so we know where to stop
+ looking for targets. Start there again once we're done. */
+ *colonp = '\0';
+ filenames = PARSE_SIMPLE_SEQ (&p2, struct nameseq);
+ *colonp = save;
+ p2 = colonp + (save == '&');
+ }
+
+ if (!filenames)
+ {
+ /* We accept and ignore rules without targets for
+ compatibility with SunOS 4 make. */
+ no_targets = 1;
+ continue;
+ }
+ /* This should never be possible; we handled it above. */
+ assert (*p2 != '\0');
+ ++p2;
+
+ /* Is this a one-colon or two-colon entry? */
+ two_colon = *p2 == ':';
+ if (two_colon)
+ p2++;
+
+ /* Test to see if it's a target-specific variable. Copy the rest
+ of the buffer over, possibly temporarily (we'll expand it later
+ if it's not a target-specific variable). PLEN saves the length
+ of the unparsed section of p2, for later. */
+ if (*lb_next != '\0')
+ {
+ size_t l = p2 - variable_buffer;
+ plen = strlen (p2);
+ variable_buffer_output (p2+plen, lb_next, strlen (lb_next)+1);
+ p2 = variable_buffer + l;
+ }
+
+ p2 = parse_var_assignment (p2, 1, &vmod);
+ if (vmod.assign_v)
+ {
+ /* If there was a semicolon found, add it back, plus anything
+ after it. */
+ if (semip)
+ {
+ size_t l = p2 - variable_buffer;
+ *(--semip) = ';';
+ collapse_continuations (semip);
+ variable_buffer_output (p2 + strlen (p2),
+ semip, strlen (semip)+1);
+ p2 = variable_buffer + l;
+ }
+ record_target_var (filenames, p2,
+ vmod.override_v ? o_override : o_file,
+ &vmod, fstart);
+ filenames = 0;
+ continue;
+ }
+
+ /* This is a normal target, _not_ a target-specific variable.
+ Unquote any = in the dependency list. */
+ find_char_unquote (lb_next, '=');
+
+ /* Remember the command prefix for this target. */
+ prefix = cmd_prefix;
+
+ /* We have some targets, so don't ignore the following commands. */
+ no_targets = 0;
+
+ /* Expand the dependencies, etc. */
+ if (*lb_next != '\0')
+ {
+ size_t l = p2 - variable_buffer;
+ variable_expand_string (p2 + plen, lb_next, SIZE_MAX);
+ p2 = variable_buffer + l;
+
+ /* Look for a semicolon in the expanded line. */
+ if (cmdleft == 0)
+ {
+ cmdleft = find_char_unquote (p2, ';');
+ if (cmdleft != 0)
+ *(cmdleft++) = '\0';
+ }
+ }
+
+ /* Is this a static pattern rule: 'target: %targ: %dep; ...'? */
+ p = strchr (p2, ':');
+ while (p != 0 && p[-1] == '\\')
+ {
+ char *q = &p[-1];
+ int backslash = 0;
+ while (*q-- == '\\')
+ backslash = !backslash;
+ if (backslash)
+ p = strchr (p + 1, ':');
+ else
+ break;
+ }
+#ifdef _AMIGA
+ /* Here, the situation is quite complicated. Let's have a look
+ at a couple of targets:
+
+ install: dev:make
+
+ dev:make: make
+
+ dev:make:: xyz
+
+ The rule is that it's only a target, if there are TWO :'s
+ OR a space around the :.
+ */
+ if (p && !(ISSPACE (p[1]) || !p[1] || ISSPACE (p[-1])))
+ p = 0;
+#endif
+#ifdef HAVE_DOS_PATHS
+ {
+ int check_again;
+ do {
+ check_again = 0;
+ /* For DOS-style paths, skip a "C:\..." or a "C:/..." */
+ if (p != 0 && (p[1] == '\\' || p[1] == '/') &&
+ isalpha ((unsigned char)p[-1]) &&
+ (p == p2 + 1 || strchr (" \t:(", p[-2]) != 0)) {
+ p = strchr (p + 1, ':');
+ check_again = 1;
+ }
+ } while (check_again);
+ }
+#endif
+ if (p != 0)
+ {
+ struct nameseq *target;
+ target = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_COLON, NULL,
+ PARSEFS_NOGLOB);
+ ++p2;
+ if (target == 0)
+ O (fatal, fstart, _("missing target pattern"));
+ else if (target->next != 0)
+ O (fatal, fstart, _("multiple target patterns"));
+ pattern_percent = find_percent_cached (&target->name);
+ pattern = target->name;
+ if (pattern_percent == 0)
+ O (fatal, fstart, _("target pattern contains no '%%'"));
+ free_ns (target);
+ }
+ else
+ pattern = 0;
+
+ /* Strip leading and trailing whitespaces. */
+ beg = p2;
+ end = beg + strlen (beg) - 1;
+ strip_whitespace (&beg, &end);
+
+ /* Put all the prerequisites here; they'll be parsed later. */
+ if (beg <= end && *beg != '\0')
+ depstr = xstrndup (beg, end - beg + 1);
+ else
+ depstr = 0;
+
+ commands_idx = 0;
+ if (cmdleft != 0)
+ {
+ /* Semicolon means rest of line is a command. */
+ size_t l = strlen (cmdleft);
+
+ cmds_started = fstart->lineno;
+
+ /* Add this command line to the buffer. */
+ if (l + 2 > commands_len)
+ {
+ commands_len = (l + 2) * 2;
+ commands = xrealloc (commands, commands_len);
+ }
+ memcpy (commands, cmdleft, l);
+ commands_idx += l;
+ commands[commands_idx++] = '\n';
+ }
+
+ check_specials (filenames, set_default);
+ }
+ }
+
+#undef word1eq
+
+ if (conditionals->if_cmds)
+ O (fatal, fstart, _("missing 'endif'"));
+
+ /* At eof, record the last rule. */
+ record_waiting_files ();
+
+ free (collapsed);
+ free (commands);
+}
+
+
+/* Remove comments from LINE.
+ This will also remove backslashes that escape things.
+ It ignores comment characters that appear inside variable references. */
+
+static void
+remove_comments (char *line)
+{
+ char *comment;
+
+ comment = find_map_unquote (line, MAP_COMMENT|MAP_VARIABLE);
+
+ if (comment != 0)
+ /* Cut off the line at the #. */
+ *comment = '\0';
+}
+
+/* Execute a 'undefine' directive.
+ The undefine line has already been read, and NAME is the name of
+ the variable to be undefined. */
+
+static void
+do_undefine (char *name, enum variable_origin origin, struct ebuffer *ebuf)
+{
+ char *p, *var;
+
+ /* Expand the variable name and find the beginning (NAME) and end. */
+ var = allocated_variable_expand (name);
+ name = next_token (var);
+ if (*name == '\0')
+ O (fatal, &ebuf->floc, _("empty variable name"));
+ p = name + strlen (name) - 1;
+ while (p > name && ISBLANK (*p))
+ --p;
+ p[1] = '\0';
+
+ undefine_variable_global (name, p - name + 1, origin);
+ free (var);
+}
+
+/* Execute a 'define' directive.
+ The first line has already been read, and NAME is the name of
+ the variable to be defined. The following lines remain to be read. */
+
+static struct variable *
+do_define (char *name, enum variable_origin origin, struct ebuffer *ebuf)
+{
+ struct variable *v;
+ struct variable var;
+ floc defstart;
+ int nlevels = 1;
+ size_t length = 100;
+ char *definition = xmalloc (length);
+ size_t idx = 0;
+ char *p, *n;
+
+ defstart = ebuf->floc;
+
+ p = parse_variable_definition (name, &var);
+ if (p == NULL)
+ /* No assignment token, so assume recursive. */
+ var.flavor = f_recursive;
+ else
+ {
+ if (var.value[0] != '\0')
+ O (error, &defstart, _("extraneous text after 'define' directive"));
+
+ /* Chop the string before the assignment token to get the name. */
+ var.name[var.length] = '\0';
+ }
+
+ /* Expand the variable name and find the beginning (NAME) and end. */
+ n = allocated_variable_expand (name);
+ name = next_token (n);
+ if (name[0] == '\0')
+ O (fatal, &defstart, _("empty variable name"));
+ p = name + strlen (name) - 1;
+ while (p > name && ISBLANK (*p))
+ --p;
+ p[1] = '\0';
+
+ /* Now read the value of the variable. */
+ while (1)
+ {
+ size_t len;
+ char *line;
+ long nlines = readline (ebuf);
+
+ /* If there is nothing left to be eval'd, there's no 'endef'!! */
+ if (nlines < 0)
+ O (fatal, &defstart, _("missing 'endef', unterminated 'define'"));
+
+ ebuf->floc.lineno += nlines;
+ line = ebuf->buffer;
+
+ collapse_continuations (line);
+
+ /* If the line doesn't begin with a tab, test to see if it introduces
+ another define, or ends one. Stop if we find an 'endef' */
+ if (line[0] != cmd_prefix)
+ {
+ p = next_token (line);
+ len = strlen (p);
+
+ /* If this is another 'define', increment the level count. */
+ if ((len == 6 || (len > 6 && ISBLANK (p[6])))
+ && strneq (p, "define", 6))
+ ++nlevels;
+
+ /* If this is an 'endef', decrement the count. If it's now 0,
+ we've found the last one. */
+ else if ((len == 5 || (len > 5 && ISBLANK (p[5])))
+ && strneq (p, "endef", 5))
+ {
+ p += 5;
+ remove_comments (p);
+ if (*(next_token (p)) != '\0')
+ O (error, &ebuf->floc,
+ _("extraneous text after 'endef' directive"));
+
+ if (--nlevels == 0)
+ break;
+ }
+ }
+
+ /* Add this line to the variable definition. */
+ len = strlen (line);
+ if (idx + len + 1 > length)
+ {
+ length = (idx + len) * 2;
+ definition = xrealloc (definition, length + 1);
+ }
+
+ memcpy (&definition[idx], line, len);
+ idx += len;
+ /* Separate lines with a newline. */
+ definition[idx++] = '\n';
+ }
+
+ /* We've got what we need; define the variable. */
+ if (idx == 0)
+ definition[0] = '\0';
+ else
+ definition[idx - 1] = '\0';
+
+ v = do_variable_definition (&defstart, name,
+ definition, origin, var.flavor, 0);
+ free (definition);
+ free (n);
+ return (v);
+}
+
+/* Interpret conditional commands "ifdef", "ifndef", "ifeq",
+ "ifneq", "else" and "endif".
+ LINE is the input line, with the command as its first word.
+
+ FILENAME and LINENO are the filename and line number in the
+ current makefile. They are used for error messages.
+
+ Value is -2 if the line is not a conditional at all,
+ -1 if the line is an invalid conditional,
+ 0 if following text should be interpreted,
+ 1 if following text should be ignored. */
+
+static int
+conditional_line (char *line, size_t len, const floc *flocp)
+{
+ const char *cmdname;
+ enum { c_ifdef, c_ifndef, c_ifeq, c_ifneq, c_else, c_endif } cmdtype;
+ unsigned int i;
+ unsigned int o;
+
+ /* Compare a word, both length and contents. */
+#define word1eq(s) (len == CSTRLEN (s) && strneq (s, line, CSTRLEN (s)))
+#define chkword(s, t) if (word1eq (s)) { cmdtype = (t); cmdname = (s); }
+
+ /* Make sure this line is a conditional. */
+ chkword ("ifdef", c_ifdef)
+ else chkword ("ifndef", c_ifndef)
+ else chkword ("ifeq", c_ifeq)
+ else chkword ("ifneq", c_ifneq)
+ else chkword ("else", c_else)
+ else chkword ("endif", c_endif)
+ else
+ return -2;
+
+ /* Found one: skip past it and any whitespace after it. */
+ line += len;
+ NEXT_TOKEN (line);
+
+#define EXTRATEXT() OS (error, flocp, _("extraneous text after '%s' directive"), cmdname)
+#define EXTRACMD() OS (fatal, flocp, _("extraneous '%s'"), cmdname)
+
+ /* An 'endif' cannot contain extra text, and reduces the if-depth by 1 */
+ if (cmdtype == c_endif)
+ {
+ if (*line != '\0')
+ EXTRATEXT ();
+
+ if (!conditionals->if_cmds)
+ EXTRACMD ();
+
+ --conditionals->if_cmds;
+
+ goto DONE;
+ }
+
+ /* An 'else' statement can either be simple, or it can have another
+ conditional after it. */
+ if (cmdtype == c_else)
+ {
+ const char *p;
+
+ if (!conditionals->if_cmds)
+ EXTRACMD ();
+
+ o = conditionals->if_cmds - 1;
+
+ if (conditionals->seen_else[o])
+ O (fatal, flocp, _("only one 'else' per conditional"));
+
+ /* Change the state of ignorance. */
+ switch (conditionals->ignoring[o])
+ {
+ case 0:
+ /* We've just been interpreting. Never do it again. */
+ conditionals->ignoring[o] = 2;
+ break;
+ case 1:
+ /* We've never interpreted yet. Maybe this time! */
+ conditionals->ignoring[o] = 0;
+ break;
+ }
+
+ /* It's a simple 'else'. */
+ if (*line == '\0')
+ {
+ conditionals->seen_else[o] = 1;
+ goto DONE;
+ }
+
+ /* The 'else' has extra text. That text must be another conditional
+ and cannot be an 'else' or 'endif'. */
+
+ /* Find the length of the next word. */
+ for (p = line+1; ! STOP_SET (*p, MAP_SPACE|MAP_NUL); ++p)
+ ;
+ len = p - line;
+
+ /* If it's 'else' or 'endif' or an illegal conditional, fail. */
+ if (word1eq ("else") || word1eq ("endif")
+ || conditional_line (line, len, flocp) < 0)
+ EXTRATEXT ();
+ else
+ {
+ /* conditional_line() created a new level of conditional.
+ Raise it back to this level. */
+ if (conditionals->ignoring[o] < 2)
+ conditionals->ignoring[o] = conditionals->ignoring[o+1];
+ --conditionals->if_cmds;
+ }
+
+ goto DONE;
+ }
+
+ if (conditionals->allocated == 0)
+ {
+ conditionals->allocated = 5;
+ conditionals->ignoring = xmalloc (conditionals->allocated);
+ conditionals->seen_else = xmalloc (conditionals->allocated);
+ }
+
+ o = conditionals->if_cmds++;
+ if (conditionals->if_cmds > conditionals->allocated)
+ {
+ conditionals->allocated += 5;
+ conditionals->ignoring = xrealloc (conditionals->ignoring,
+ conditionals->allocated);
+ conditionals->seen_else = xrealloc (conditionals->seen_else,
+ conditionals->allocated);
+ }
+
+ /* Record that we have seen an 'if...' but no 'else' so far. */
+ conditionals->seen_else[o] = 0;
+
+ /* Search through the stack to see if we're already ignoring. */
+ for (i = 0; i < o; ++i)
+ if (conditionals->ignoring[i])
+ {
+ /* We are already ignoring, so just push a level to match the next
+ "else" or "endif", and keep ignoring. We don't want to expand
+ variables in the condition. */
+ conditionals->ignoring[o] = 1;
+ return 1;
+ }
+
+ if (cmdtype == c_ifdef || cmdtype == c_ifndef)
+ {
+ size_t l;
+ char *var;
+ struct variable *v;
+ char *p;
+
+ /* Expand the thing we're looking up, so we can use indirect and
+ constructed variable names. */
+ var = allocated_variable_expand (line);
+
+ /* Make sure there's only one variable name to test. */
+ p = end_of_token (var);
+ l = p - var;
+ NEXT_TOKEN (p);
+ if (*p != '\0')
+ return -1;
+
+ var[l] = '\0';
+ v = lookup_variable (var, l);
+
+ conditionals->ignoring[o] =
+ ((v != 0 && *v->value != '\0') == (cmdtype == c_ifndef));
+
+ free (var);
+ }
+ else
+ {
+ /* "ifeq" or "ifneq". */
+ char *s1, *s2;
+ size_t l;
+ char termin = *line == '(' ? ',' : *line;
+
+ if (termin != ',' && termin != '"' && termin != '\'')
+ return -1;
+
+ s1 = ++line;
+ /* Find the end of the first string. */
+ if (termin == ',')
+ {
+ int count = 0;
+ for (; *line != '\0'; ++line)
+ if (*line == '(')
+ ++count;
+ else if (*line == ')')
+ --count;
+ else if (*line == ',' && count <= 0)
+ break;
+ }
+ else
+ while (*line != '\0' && *line != termin)
+ ++line;
+
+ if (*line == '\0')
+ return -1;
+
+ if (termin == ',')
+ {
+ /* Strip blanks after the first string. */
+ char *p = line++;
+ while (ISBLANK (p[-1]))
+ --p;
+ *p = '\0';
+ }
+ else
+ *line++ = '\0';
+
+ s2 = variable_expand (s1);
+ /* We must allocate a new copy of the expanded string because
+ variable_expand re-uses the same buffer. */
+ l = strlen (s2);
+ s1 = alloca (l + 1);
+ memcpy (s1, s2, l + 1);
+
+ if (termin != ',')
+ /* Find the start of the second string. */
+ NEXT_TOKEN (line);
+
+ termin = termin == ',' ? ')' : *line;
+ if (termin != ')' && termin != '"' && termin != '\'')
+ return -1;
+
+ /* Find the end of the second string. */
+ if (termin == ')')
+ {
+ int count = 0;
+ s2 = next_token (line);
+ for (line = s2; *line != '\0'; ++line)
+ {
+ if (*line == '(')
+ ++count;
+ else if (*line == ')')
+ {
+ if (count <= 0)
+ break;
+ else
+ --count;
+ }
+ }
+ }
+ else
+ {
+ ++line;
+ s2 = line;
+ while (*line != '\0' && *line != termin)
+ ++line;
+ }
+
+ if (*line == '\0')
+ return -1;
+
+ *(line++) = '\0';
+ NEXT_TOKEN (line);
+ if (*line != '\0')
+ EXTRATEXT ();
+
+ s2 = variable_expand (s2);
+ conditionals->ignoring[o] = (streq (s1, s2) == (cmdtype == c_ifneq));
+ }
+
+ DONE:
+ /* Search through the stack to see if we're ignoring. */
+ for (i = 0; i < conditionals->if_cmds; ++i)
+ if (conditionals->ignoring[i])
+ return 1;
+ return 0;
+}
+
+
+/* Record target-specific variable values for files FILENAMES.
+ TWO_COLON is nonzero if a double colon was used.
+
+ The links of FILENAMES are freed, and so are any names in it
+ that are not incorporated into other data structures.
+
+ If the target is a pattern, add the variable to the pattern-specific
+ variable value list. */
+
+static void
+record_target_var (struct nameseq *filenames, char *defn,
+ enum variable_origin origin, struct vmodifiers *vmod,
+ const floc *flocp)
+{
+ struct nameseq *nextf;
+ struct variable_set_list *global;
+
+ global = current_variable_set_list;
+
+ /* If the variable is an append version, store that but treat it as a
+ normal recursive variable. */
+
+ for (; filenames != 0; filenames = nextf)
+ {
+ struct variable *v;
+ const char *name = filenames->name;
+ const char *percent;
+ struct pattern_var *p;
+
+ nextf = filenames->next;
+ free_ns (filenames);
+
+ /* If it's a pattern target, then add it to the pattern-specific
+ variable list. */
+ percent = find_percent_cached (&name);
+ if (percent)
+ {
+ /* Get a reference for this pattern-specific variable struct. */
+ p = create_pattern_var (name, percent);
+ p->variable.fileinfo = *flocp;
+ /* I don't think this can fail since we already determined it was a
+ variable definition. */
+ v = assign_variable_definition (&p->variable, defn);
+ assert (v != 0);
+
+ v->origin = origin;
+ if (v->flavor == f_simple)
+ v->value = allocated_variable_expand (v->value);
+ else
+ v->value = xstrdup (v->value);
+ }
+ else
+ {
+ struct file *f;
+
+ /* Get a file reference for this file, and initialize it.
+ We don't want to just call enter_file() because that allocates a
+ new entry if the file is a double-colon, which we don't want in
+ this situation. */
+ f = lookup_file (name);
+ if (!f)
+ f = enter_file (strcache_add (name));
+ else if (f->double_colon)
+ f = f->double_colon;
+
+ initialize_file_variables (f, 1);
+
+ current_variable_set_list = f->variables;
+ v = try_variable_definition (flocp, defn, origin, 1);
+ if (!v)
+ O (fatal, flocp, _("Malformed target-specific variable definition"));
+ current_variable_set_list = global;
+ }
+
+ /* Set up the variable to be *-specific. */
+ v->per_target = 1;
+ v->private_var = vmod->private_v;
+ if (vmod->export_v != v_default)
+ v->export = vmod->export_v;
+
+ /* If it's not an override, check to see if there was a command-line
+ setting. If so, reset the value. */
+ if (v->origin != o_override)
+ {
+ struct variable *gv;
+ size_t len = strlen (v->name);
+
+ gv = lookup_variable (v->name, len);
+ if (gv && v != gv
+ && (gv->origin == o_env_override || gv->origin == o_command))
+ {
+ free (v->value);
+ v->value = xstrdup (gv->value);
+ v->origin = gv->origin;
+ v->recursive = gv->recursive;
+ v->append = 0;
+ }
+ }
+ }
+}
+
+
+/* Check for special targets. We used to do this in record_files() but that's
+ too late: by the time we get there we'll have already parsed the next line
+ and it have been mis-parsed because these special targets haven't been
+ considered yet. */
+
+static void check_specials (const struct nameseq* files, int set_default)
+{
+ const struct nameseq *t = files;
+
+ /* Unlikely but ... */
+ if (posix_pedantic && second_expansion && one_shell
+ && (!set_default || default_goal_var->value[0] == '\0'))
+ return;
+
+ for (; t != 0; t = t->next)
+ {
+ const char* nm = t->name;
+
+ if (!posix_pedantic && streq (nm, ".POSIX"))
+ {
+ posix_pedantic = 1;
+ define_variable_cname (".SHELLFLAGS", "-ec", o_default, 0);
+ /* These default values are based on IEEE Std 1003.1-2008.
+ It requires '-O 1' for [CF]FLAGS, but GCC doesn't allow
+ space between -O and the number so omit it here. */
+ define_variable_cname ("CC", "c99", o_default, 0);
+ define_variable_cname ("CFLAGS", "-O1", o_default, 0);
+ define_variable_cname ("FC", "fort77", o_default, 0);
+ define_variable_cname ("FFLAGS", "-O1", o_default, 0);
+ define_variable_cname ("SCCSGETFLAGS", "-s", o_default, 0);
+ continue;
+ }
+
+ if (!second_expansion && streq (nm, ".SECONDEXPANSION"))
+ {
+ second_expansion = 1;
+ continue;
+ }
+
+#if !defined (__MSDOS__) && !defined (__EMX__)
+ if (!one_shell && streq (nm, ".ONESHELL"))
+ {
+ one_shell = 1;
+ continue;
+ }
+#endif
+
+ /* Determine if this target should be made default. */
+
+ if (set_default && default_goal_var->value[0] == '\0')
+ {
+ struct dep *d;
+ int reject = 0;
+
+ /* We have nothing to do if this is an implicit rule. */
+ if (strchr (nm, '%') != 0)
+ break;
+
+ /* See if this target's name does not start with a '.',
+ unless it contains a slash. */
+ if (*nm == '.' && strchr (nm, '/') == 0
+#ifdef HAVE_DOS_PATHS
+ && strchr (nm, '\\') == 0
+#endif
+ )
+ continue;
+
+ /* If this file is a suffix, it can't be the default goal file. */
+ for (d = suffix_file->deps; d != 0; d = d->next)
+ {
+ struct dep *d2;
+ if (*dep_name (d) != '.' && streq (nm, dep_name (d)))
+ {
+ reject = 1;
+ break;
+ }
+ for (d2 = suffix_file->deps; d2 != 0; d2 = d2->next)
+ {
+ size_t l = strlen (dep_name (d2));
+ if (!strneq (nm, dep_name (d2), l))
+ continue;
+ if (streq (nm + l, dep_name (d)))
+ {
+ reject = 1;
+ break;
+ }
+ }
+
+ if (reject)
+ break;
+ }
+
+ if (!reject)
+ define_variable_global (".DEFAULT_GOAL", 13, t->name,
+ o_file, 0, NILF);
+ }
+ }
+}
+
+/* Record a description line for files FILENAMES,
+ with dependencies DEPS, commands to execute described
+ by COMMANDS and COMMANDS_IDX, coming from FILENAME:COMMANDS_STARTED.
+ TWO_COLON is nonzero if a double colon was used.
+ If not nil, PATTERN is the '%' pattern to make this
+ a static pattern rule, and PATTERN_PERCENT is a pointer
+ to the '%' within it.
+
+ The links of FILENAMES are freed, and so are any names in it
+ that are not incorporated into other data structures. */
+
+static void
+record_files (struct nameseq *filenames, int are_also_makes,
+ const char *pattern,
+ const char *pattern_percent, char *depstr,
+ unsigned int cmds_started, char *commands,
+ size_t commands_idx, int two_colon,
+ char prefix, const floc *flocp)
+{
+ struct commands *cmds;
+ struct dep *deps;
+ struct dep *also_make = NULL;
+ const char *implicit_percent;
+ const char *name;
+
+ /* If we've already snapped deps, that means we're in an eval being
+ resolved after the makefiles have been read in. We can't add more rules
+ at this time, since they won't get snapped and we'll get core dumps.
+ See Savannah bug # 12124. */
+ if (snapped_deps)
+ O (fatal, flocp, _("prerequisites cannot be defined in recipes"));
+
+ /* Determine if this is a pattern rule or not. */
+ name = filenames->name;
+ implicit_percent = find_percent_cached (&name);
+
+ /* If there's a recipe, set up a struct for it. */
+ if (commands_idx > 0)
+ {
+ cmds = xmalloc (sizeof (struct commands));
+ cmds->fileinfo.filenm = flocp->filenm;
+ cmds->fileinfo.lineno = cmds_started;
+ cmds->fileinfo.offset = 0;
+ cmds->commands = xstrndup (commands, commands_idx);
+ cmds->command_lines = 0;
+ cmds->recipe_prefix = prefix;
+ }
+ else if (are_also_makes)
+ O (fatal, flocp, _("grouped targets must provide a recipe"));
+ else
+ cmds = NULL;
+
+ /* If there's a prereq string then parse it--unless it's eligible for 2nd
+ expansion: if so, snap_deps() will do it. */
+ if (depstr == 0)
+ deps = 0;
+ else
+ {
+ depstr = unescape_char (depstr, ':');
+ if (second_expansion && strchr (depstr, '$'))
+ {
+ deps = alloc_dep ();
+ deps->name = depstr;
+ deps->need_2nd_expansion = 1;
+ deps->staticpattern = pattern != 0;
+ }
+ else
+ {
+ deps = split_prereqs (depstr);
+ free (depstr);
+
+ /* We'll enter static pattern prereqs later when we have the stem.
+ We don't want to enter pattern rules at all so that we don't
+ think that they ought to exist (make manual "Implicit Rule Search
+ Algorithm", item 5c). */
+ if (! pattern && ! implicit_percent)
+ deps = enter_prereqs (deps, NULL);
+ }
+ }
+
+ /* For implicit rules, _all_ the targets must have a pattern. That means we
+ can test the first one to see if we're working with an implicit rule; if
+ so we handle it specially. */
+
+ if (implicit_percent)
+ {
+ struct nameseq *nextf;
+ const char **targets, **target_pats;
+ unsigned short c;
+
+ if (pattern != 0)
+ O (fatal, flocp, _("mixed implicit and static pattern rules"));
+
+ /* Count the targets to create an array of target names.
+ We already have the first one. */
+ nextf = filenames->next;
+ free_ns (filenames);
+ filenames = nextf;
+
+ for (c = 1; nextf; ++c, nextf = nextf->next)
+ ;
+ targets = xmalloc (c * sizeof (const char *));
+ target_pats = xmalloc (c * sizeof (const char *));
+
+ targets[0] = name;
+ target_pats[0] = implicit_percent;
+
+ c = 1;
+ while (filenames)
+ {
+ name = filenames->name;
+ implicit_percent = find_percent_cached (&name);
+
+ if (implicit_percent == 0)
+ O (fatal, flocp, _("mixed implicit and normal rules"));
+
+ targets[c] = name;
+ target_pats[c] = implicit_percent;
+ ++c;
+
+ nextf = filenames->next;
+ free_ns (filenames);
+ filenames = nextf;
+ }
+
+ create_pattern_rule (targets, target_pats, c, two_colon, deps, cmds, 1);
+
+ return;
+ }
+
+
+ /* Walk through each target and create it in the database.
+ We already set up the first target, above. */
+ while (1)
+ {
+ struct nameseq *nextf = filenames->next;
+ struct file *f;
+ struct dep *this = 0;
+
+ free_ns (filenames);
+
+ /* If this is a static pattern rule:
+ 'targets: target%pattern: prereq%pattern; recipe',
+ make sure the pattern matches this target name. */
+ if (pattern && !pattern_matches (pattern, pattern_percent, name))
+ OS (error, flocp,
+ _("target '%s' doesn't match the target pattern"), name);
+ else if (deps)
+ /* If there are multiple targets, copy the chain DEPS for all but the
+ last one. It is not safe for the same deps to go in more than one
+ place in the database. */
+ this = nextf != 0 ? copy_dep_chain (deps) : deps;
+
+ /* Find or create an entry in the file database for this target. */
+ if (!two_colon)
+ {
+ /* Single-colon. Combine this rule with the file's existing record,
+ if any. */
+ f = enter_file (strcache_add (name));
+ if (f->double_colon)
+ OS (fatal, flocp,
+ _("target file '%s' has both : and :: entries"), f->name);
+
+ /* If CMDS == F->CMDS, this target was listed in this rule
+ more than once. Just give a warning since this is harmless. */
+ if (cmds != 0 && cmds == f->cmds)
+ OS (error, flocp,
+ _("target '%s' given more than once in the same rule"),
+ f->name);
+
+ /* Check for two single-colon entries both with commands.
+ Check is_target so that we don't lose on files such as .c.o
+ whose commands were preinitialized. */
+ else if (cmds != 0 && f->cmds != 0 && f->is_target)
+ {
+ size_t l = strlen (f->name);
+ error (&cmds->fileinfo, l,
+ _("warning: overriding recipe for target '%s'"),
+ f->name);
+ error (&f->cmds->fileinfo, l,
+ _("warning: ignoring old recipe for target '%s'"),
+ f->name);
+ }
+
+ /* Defining .DEFAULT with no deps or cmds clears it. */
+ if (f == default_file && this == 0 && cmds == 0)
+ f->cmds = 0;
+ if (cmds != 0)
+ f->cmds = cmds;
+
+ /* Defining .SUFFIXES with no dependencies clears out the list of
+ suffixes. */
+ if (f == suffix_file && this == 0)
+ {
+ free_dep_chain (f->deps);
+ f->deps = 0;
+ }
+ }
+ else
+ {
+ /* Double-colon. Make a new record even if there already is one. */
+ f = lookup_file (name);
+
+ /* Check for both : and :: rules. Check is_target so we don't lose
+ on default suffix rules or makefiles. */
+ if (f != 0 && f->is_target && !f->double_colon)
+ OS (fatal, flocp,
+ _("target file '%s' has both : and :: entries"), f->name);
+
+ f = enter_file (strcache_add (name));
+ /* If there was an existing entry and it was a double-colon entry,
+ enter_file will have returned a new one, making it the prev
+ pointer of the old one, and setting its double_colon pointer to
+ the first one. */
+ if (f->double_colon == 0)
+ /* This is the first entry for this name, so we must set its
+ double_colon pointer to itself. */
+ f->double_colon = f;
+
+ f->cmds = cmds;
+ }
+
+ if (are_also_makes)
+ {
+ struct dep *also = alloc_dep();
+ also->name = f->name;
+ also->file = f;
+ also->next = also_make;
+ also_make = also;
+ }
+
+ f->is_target = 1;
+
+ /* If this is a static pattern rule, set the stem to the part of its
+ name that matched the '%' in the pattern, so you can use $* in the
+ commands. If we didn't do it before, enter the prereqs now. */
+ if (pattern)
+ {
+ static const char *percent = "%";
+ char *o = patsubst_expand_pat (variable_buffer, name, pattern,
+ percent, pattern_percent+1, percent+1);
+ f->stem = strcache_add_len (variable_buffer, o - variable_buffer);
+ if (this)
+ {
+ if (! this->need_2nd_expansion)
+ this = enter_prereqs (this, f->stem);
+ else
+ this->stem = f->stem;
+ }
+ }
+
+ /* Add the dependencies to this file entry. */
+ if (this != 0)
+ {
+ /* Add the file's old deps and the new ones in THIS together. */
+ if (f->deps == 0)
+ f->deps = this;
+ else if (cmds != 0)
+ {
+ struct dep *d = this;
+
+ /* If this rule has commands, put these deps first. */
+ while (d->next != 0)
+ d = d->next;
+
+ d->next = f->deps;
+ f->deps = this;
+ }
+ else
+ {
+ struct dep *d = f->deps;
+
+ /* A rule without commands: put its prereqs at the end. */
+ while (d->next != 0)
+ d = d->next;
+
+ d->next = this;
+ }
+ }
+
+ name = f->name;
+
+ /* All done! Set up for the next one. */
+ if (nextf == 0)
+ break;
+
+ filenames = nextf;
+
+ /* Reduce escaped percents. If there are any unescaped it's an error */
+ name = filenames->name;
+ if (find_percent_cached (&name))
+ O (error, flocp,
+ _("*** mixed implicit and normal rules: deprecated syntax"));
+ }
+
+ /* If there are also-makes, then populate a copy of the also-make list into
+ each one. For the last file, we take our original also_make list instead
+ wastefully copying it one more time and freeing it. */
+ {
+ struct dep *i;
+
+ for (i = also_make; i != NULL; i = i->next)
+ {
+ struct file *f = i->file;
+ struct dep *cpy = i->next ? copy_dep_chain (also_make) : also_make;
+
+ if (f->also_make)
+ {
+ OS (error, &cmds->fileinfo,
+ _("warning: overriding group membership for target '%s'"),
+ f->name);
+ free_dep_chain (f->also_make);
+ }
+
+ f->also_make = cpy;
+ }
+ }
+}
+
+/* Search STRING for an unquoted STOPMAP.
+ Backslashes quote elements from STOPMAP and backslash.
+ Quoting backslashes are removed from STRING by compacting it into itself.
+ Returns a pointer to the first unquoted STOPCHAR if there is one, or nil if
+ there are none.
+
+ If MAP_VARIABLE is set, then the complete contents of variable references
+ are skipped, even if the contain STOPMAP characters. */
+
+static char *
+find_map_unquote (char *string, int stopmap)
+{
+ size_t string_len = 0;
+ char *p = string;
+
+ /* Always stop on NUL. */
+ stopmap |= MAP_NUL;
+
+ while (1)
+ {
+ while (! STOP_SET (*p, stopmap))
+ ++p;
+
+ if (*p == '\0')
+ break;
+
+ /* If we stopped due to a variable reference, skip over its contents. */
+ if (*p == '$')
+ {
+ char openparen = p[1];
+
+ /* Check if '$' is the last character in the string. */
+ if (openparen == '\0')
+ break;
+
+ p += 2;
+
+ /* Skip the contents of a non-quoted, multi-char variable ref. */
+ if (openparen == '(' || openparen == '{')
+ {
+ unsigned int pcount = 1;
+ char closeparen = (openparen == '(' ? ')' : '}');
+
+ while (*p)
+ {
+ if (*p == openparen)
+ ++pcount;
+ else if (*p == closeparen)
+ if (--pcount == 0)
+ {
+ ++p;
+ break;
+ }
+ ++p;
+ }
+ }
+
+ /* Skipped the variable reference: look for STOPCHARS again. */
+ continue;
+ }
+
+ if (p > string && p[-1] == '\\')
+ {
+ /* Search for more backslashes. */
+ int i = -2;
+ while (&p[i] >= string && p[i] == '\\')
+ --i;
+ ++i;
+ /* Only compute the length if really needed. */
+ if (string_len == 0)
+ string_len = strlen (string);
+ /* The number of backslashes is now -I.
+ Copy P over itself to swallow half of them. */
+ memmove (&p[i], &p[i/2], (string_len - (p - string)) - (i/2) + 1);
+ p += i/2;
+ if (i % 2 == 0)
+ /* All the backslashes quoted each other; the STOPCHAR was
+ unquoted. */
+ return p;
+
+ /* The STOPCHAR was quoted by a backslash. Look for another. */
+ }
+ else
+ /* No backslash in sight. */
+ return p;
+ }
+
+ /* Never hit a STOPCHAR or blank (with BLANK nonzero). */
+ return 0;
+}
+
+static char *
+find_char_unquote (char *string, int stop)
+{
+ size_t string_len = 0;
+ char *p = string;
+
+ while (1)
+ {
+ p = strchr(p, stop);
+
+ if (!p)
+ return NULL;
+
+ if (p > string && p[-1] == '\\')
+ {
+ /* Search for more backslashes. */
+ int i = -2;
+ while (&p[i] >= string && p[i] == '\\')
+ --i;
+ ++i;
+ /* Only compute the length if really needed. */
+ if (string_len == 0)
+ string_len = strlen (string);
+ /* The number of backslashes is now -I.
+ Copy P over itself to swallow half of them. */
+ memmove (&p[i], &p[i/2], (string_len - (p - string)) - (i/2) + 1);
+ p += i/2;
+ if (i % 2 == 0)
+ /* All the backslashes quoted each other; the STOPCHAR was
+ unquoted. */
+ return p;
+
+ /* The STOPCHAR was quoted by a backslash. Look for another. */
+ }
+ else
+ /* No backslash in sight. */
+ return p;
+ }
+}
+
+/* Unescape a character in a string. The string is compressed onto itself. */
+
+static char *
+unescape_char (char *string, int c)
+{
+ char *p = string;
+ char *s = string;
+
+ while (*s != '\0')
+ {
+ if (*s == '\\')
+ {
+ char *e = s;
+ size_t l;
+
+ /* We found a backslash. See if it's escaping our character. */
+ while (*e == '\\')
+ ++e;
+ l = e - s;
+
+ if (*e != c || l%2 == 0)
+ {
+ /* It's not; just take it all without unescaping. */
+ memmove (p, s, l);
+ p += l;
+
+ /* If we hit the end of the string, we're done. */
+ if (*e == '\0')
+ break;
+ }
+ else if (l > 1)
+ {
+ /* It is, and there's >1 backslash. Take half of them. */
+ l /= 2;
+ memmove (p, s, l);
+ p += l;
+ }
+
+ s = e;
+ }
+
+ *(p++) = *(s++);
+ }
+
+ *p = '\0';
+ return string;
+}
+
+/* Search PATTERN for an unquoted % and handle quoting. */
+
+char *
+find_percent (char *pattern)
+{
+ return find_char_unquote (pattern, '%');
+}
+
+/* Search STRING for an unquoted % and handle quoting. Returns a pointer to
+ the % or NULL if no % was found.
+ This version is used with strings in the string cache: if there's a need to
+ modify the string a new version will be added to the string cache and
+ *STRING will be set to that. */
+
+const char *
+find_percent_cached (const char **string)
+{
+ const char *p = *string;
+ char *new = 0;
+ size_t slen = 0;
+
+ /* If the first char is a % return now. This lets us avoid extra tests
+ inside the loop. */
+ if (*p == '%')
+ return p;
+
+ while (1)
+ {
+ p = strchr(p, '%');
+
+ if (!p)
+ break;
+
+ /* See if this % is escaped with a backslash; if not we're done. */
+ if (p[-1] != '\\')
+ break;
+
+ {
+ /* Search for more backslashes. */
+ char *pv;
+ int i = -2;
+
+ while (&p[i] >= *string && p[i] == '\\')
+ --i;
+ ++i;
+
+ /* At this point we know we'll need to allocate a new string.
+ Make a copy if we haven't yet done so. */
+ if (! new)
+ {
+ slen = strlen (*string);
+ new = xmalloc (slen + 1);
+ memcpy (new, *string, slen + 1);
+ p = new + (p - *string);
+ *string = new;
+ }
+
+ /* At this point *string, p, and new all point into the same string.
+ Get a non-const version of p so we can modify new. */
+ pv = new + (p - *string);
+
+ /* The number of backslashes is now -I.
+ Copy P over itself to swallow half of them. */
+ memmove (&pv[i], &pv[i/2], (slen - (pv - new)) - (i/2) + 1);
+ p += i/2;
+
+ /* If the backslashes quoted each other; the % was unquoted. */
+ if (i % 2 == 0)
+ break;
+ }
+ }
+
+ /* If we had to change STRING, add it to the strcache. */
+ if (new)
+ {
+ *string = strcache_add (*string);
+ if (p)
+ p = *string + (p - new);
+ free (new);
+ }
+
+ /* If we didn't find a %, return NULL. Otherwise return a ptr to it. */
+ return p;
+}
+
+/* Find the next line of text in an eval buffer, combining continuation lines
+ into one line.
+ Return the number of actual lines read (> 1 if continuation lines).
+ Returns -1 if there's nothing left in the buffer.
+
+ After this function, ebuf->buffer points to the first character of the
+ line we just found.
+ */
+
+/* Read a line of text from a STRING.
+ Since we aren't really reading from a file, don't bother with linenumbers.
+ */
+
+static long
+readstring (struct ebuffer *ebuf)
+{
+ char *eol;
+
+ /* If there is nothing left in this buffer, return 0. */
+ if (ebuf->bufnext >= ebuf->bufstart + ebuf->size)
+ return -1;
+
+ /* Set up a new starting point for the buffer, and find the end of the
+ next logical line (taking into account backslash/newline pairs). */
+
+ eol = ebuf->buffer = ebuf->bufnext;
+
+ while (1)
+ {
+ int backslash = 0;
+ const char *bol = eol;
+ const char *p;
+
+ /* Find the next newline. At EOS, stop. */
+ p = eol = strchr (eol , '\n');
+ if (!eol)
+ {
+ ebuf->bufnext = ebuf->bufstart + ebuf->size + 1;
+ return 0;
+ }
+
+ /* Found a newline; if it's escaped continue; else we're done. */
+ while (p > bol && *(--p) == '\\')
+ backslash = !backslash;
+ if (!backslash)
+ break;
+ ++eol;
+ }
+
+ /* Overwrite the newline char. */
+ *eol = '\0';
+ ebuf->bufnext = eol+1;
+
+ return 0;
+}
+
+static long
+readline (struct ebuffer *ebuf)
+{
+ char *p;
+ char *end;
+ char *start;
+ long nlines = 0;
+
+ /* The behaviors between string and stream buffers are different enough to
+ warrant different functions. Do the Right Thing. */
+
+ if (!ebuf->fp)
+ return readstring (ebuf);
+
+ /* When reading from a file, we always start over at the beginning of the
+ buffer for each new line. */
+
+ p = start = ebuf->bufstart;
+ end = p + ebuf->size;
+ *p = '\0';
+
+ while (fgets (p, (int) (end - p), ebuf->fp) != 0)
+ {
+ char *p2;
+ size_t len;
+ int backslash;
+
+ len = strlen (p);
+ if (len == 0)
+ {
+ /* This only happens when the first thing on the line is a '\0'.
+ It is a pretty hopeless case, but (wonder of wonders) Athena
+ lossage strikes again! (xmkmf puts NULs in its makefiles.)
+ There is nothing really to be done; we synthesize a newline so
+ the following line doesn't appear to be part of this line. */
+ O (error, &ebuf->floc,
+ _("warning: NUL character seen; rest of line ignored"));
+ p[0] = '\n';
+ len = 1;
+ }
+
+ /* Jump past the text we just read. */
+ p += len;
+
+ /* If the last char isn't a newline, the whole line didn't fit into the
+ buffer. Get some more buffer and try again. */
+ if (p[-1] != '\n')
+ goto more_buffer;
+
+ /* We got a newline, so add one to the count of lines. */
+ ++nlines;
+
+#if !defined(WINDOWS32) && !defined(__MSDOS__) && !defined(__EMX__)
+ /* Check to see if the line was really ended with CRLF; if so ignore
+ the CR. */
+ if ((p - start) > 1 && p[-2] == '\r')
+ {
+ --p;
+ memmove (p-1, p, strlen (p) + 1);
+ }
+#endif
+
+ backslash = 0;
+ for (p2 = p - 2; p2 >= start; --p2)
+ {
+ if (*p2 != '\\')
+ break;
+ backslash = !backslash;
+ }
+
+ if (!backslash)
+ {
+ p[-1] = '\0';
+ break;
+ }
+
+ /* It was a backslash/newline combo. If we have more space, read
+ another line. */
+ if (end - p >= 80)
+ continue;
+
+ /* We need more space at the end of our buffer, so realloc it.
+ Make sure to preserve the current offset of p. */
+ more_buffer:
+ {
+ size_t off = p - start;
+ ebuf->size *= 2;
+ start = ebuf->buffer = ebuf->bufstart = xrealloc (start, ebuf->size);
+ p = start + off;
+ end = start + ebuf->size;
+ *p = '\0';
+ }
+ }
+
+ if (ferror (ebuf->fp))
+ pfatal_with_name (ebuf->floc.filenm);
+
+ /* If we found some lines, return how many.
+ If we didn't, but we did find _something_, that indicates we read the last
+ line of a file with no final newline; return 1.
+ If we read nothing, we're at EOF; return -1. */
+
+ return nlines ? nlines : p == ebuf->bufstart ? -1 : 1;
+}
+
+/* Parse the next "makefile word" from the input buffer, and return info
+ about it.
+
+ A "makefile word" is one of:
+
+ w_bogus Should never happen
+ w_eol End of input
+ w_static A static word; cannot be expanded
+ w_variable A word containing one or more variables/functions
+ w_colon A colon
+ w_dcolon A double-colon
+ w_ampcolon An ampersand-colon (&:) token
+ w_ampdcolon An ampersand-double-colon (&::) token
+ w_semicolon A semicolon
+ w_varassign A variable assignment operator (=, :=, ::=, +=, ?=, or !=)
+
+ Note that this function is only used when reading certain parts of the
+ makefile. Don't use it where special rules hold sway (RHS of a variable,
+ in a command list, etc.) */
+
+static enum make_word_type
+get_next_mword (char *buffer, char **startp, size_t *length)
+{
+ enum make_word_type wtype;
+ char *p = buffer, *beg;
+ char c;
+
+ /* Skip any leading whitespace. */
+ while (ISSPACE (*p))
+ ++p;
+
+ beg = p;
+ c = *(p++);
+
+ /* Look at the start of the word to see if it's simple. */
+ switch (c)
+ {
+ case '\0':
+ wtype = w_eol;
+ goto done;
+
+ case ';':
+ wtype = w_semicolon;
+ goto done;
+
+ case '=':
+ wtype = w_varassign;
+ goto done;
+
+ case ':':
+ if (*p == '=')
+ {
+ ++p;
+ wtype = w_varassign; /* := */
+ }
+ else if (*p == ':')
+ {
+ ++p;
+ if (p[1] == '=')
+ {
+ ++p;
+ wtype = w_varassign; /* ::= */
+ }
+ else
+ wtype = w_dcolon;
+ }
+ else
+ wtype = w_colon;
+ goto done;
+
+ case '&':
+ if (*p == ':')
+ {
+ ++p;
+ if (*p != ':')
+ wtype = w_ampcolon; /* &: */
+ else
+ {
+ ++p;
+ wtype = w_ampdcolon; /* &:: */
+ }
+ goto done;
+ }
+ break;
+
+ case '+':
+ case '?':
+ case '!':
+ if (*p == '=')
+ {
+ ++p;
+ wtype = w_varassign; /* += or ?= or != */
+ goto done;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* This is some non-operator word. A word consists of the longest
+ string of characters that doesn't contain whitespace, one of [:=#],
+ or [?+!]=, or &:. */
+
+ /* We start out assuming a static word; if we see a variable we'll
+ adjust our assumptions then. */
+ wtype = w_static;
+
+ /* We already found the first value of "c", above. */
+ while (1)
+ {
+ char closeparen;
+ int count;
+
+ if (END_OF_TOKEN (c))
+ goto done_word;
+
+ switch (c)
+ {
+ case '=':
+ goto done_word;
+
+ case ':':
+#ifdef HAVE_DOS_PATHS
+ /* A word CAN include a colon in its drive spec. The drive
+ spec is allowed either at the beginning of a word, or as part
+ of the archive member name, like in "libfoo.a(d:/foo/bar.o)". */
+ if ((p - beg == 2 || (p - beg > 2 && p[-3] == '('))
+ && isalpha ((unsigned char)p[-2]))
+ break;
+#endif
+ goto done_word;
+
+ case '$':
+ c = *(p++);
+ if (c == '$')
+ break;
+ if (c == '\0')
+ goto done_word;
+
+ /* This is a variable reference, so note that it's expandable.
+ Then read it to the matching close paren. */
+ wtype = w_variable;
+
+ if (c == '(')
+ closeparen = ')';
+ else if (c == '{')
+ closeparen = '}';
+ else
+ /* This is a single-letter variable reference. */
+ break;
+
+ for (count=0; *p != '\0'; ++p)
+ {
+ if (*p == c)
+ ++count;
+ else if (*p == closeparen && --count < 0)
+ {
+ ++p;
+ break;
+ }
+ }
+ break;
+
+ case '?':
+ case '+':
+ if (*p == '=')
+ goto done_word;
+ break;
+
+ case '\\':
+ switch (*p)
+ {
+ case ':':
+ case ';':
+ case '=':
+ case '\\':
+ ++p;
+ break;
+ }
+ break;
+
+ case '&':
+ if (*p == ':')
+ goto done_word;
+ break;
+
+ default:
+ break;
+ }
+
+ c = *(p++);
+ }
+ done_word:
+ --p;
+
+ done:
+ if (startp)
+ *startp = beg;
+ if (length)
+ *length = p - beg;
+ return wtype;
+}
+
+/* Construct the list of include directories
+ from the arguments and the default list. */
+
+void
+construct_include_path (const char **arg_dirs)
+{
+#ifdef VAXC /* just don't ask ... */
+ stat_t stbuf;
+#else
+ struct stat stbuf;
+#endif
+ const char **dirs;
+ const char **cpp;
+ size_t idx;
+
+ /* Compute the number of pointers we need in the table. */
+ idx = sizeof (default_include_directories) / sizeof (const char *);
+ if (arg_dirs)
+ for (cpp = arg_dirs; *cpp != 0; ++cpp)
+ ++idx;
+
+#ifdef __MSDOS__
+ /* Add one for $DJDIR. */
+ ++idx;
+#endif
+
+ dirs = xmalloc (idx * sizeof (const char *));
+
+ idx = 0;
+ max_incl_len = 0;
+
+ /* First consider any dirs specified with -I switches.
+ Ignore any that don't exist. Remember the maximum string length. */
+
+ if (arg_dirs)
+ while (*arg_dirs != 0)
+ {
+ const char *dir = *(arg_dirs++);
+ char *expanded = 0;
+ int e;
+
+ if (dir[0] == '~')
+ {
+ expanded = tilde_expand (dir);
+ if (expanded != 0)
+ dir = expanded;
+ }
+
+ EINTRLOOP (e, stat (dir, &stbuf));
+ if (e == 0 && S_ISDIR (stbuf.st_mode))
+ {
+ size_t len = strlen (dir);
+ /* If dir name is written with trailing slashes, discard them. */
+ while (len > 1 && dir[len - 1] == '/')
+ --len;
+ if (len > max_incl_len)
+ max_incl_len = len;
+ dirs[idx++] = strcache_add_len (dir, len);
+ }
+
+ free (expanded);
+ }
+
+ /* Now add the standard default dirs at the end. */
+
+#ifdef __MSDOS__
+ {
+ /* The environment variable $DJDIR holds the root of the DJGPP directory
+ tree; add ${DJDIR}/include. */
+ struct variable *djdir = lookup_variable ("DJDIR", 5);
+
+ if (djdir)
+ {
+ size_t len = strlen (djdir->value) + 8;
+ char *defdir = alloca (len + 1);
+
+ strcat (strcpy (defdir, djdir->value), "/include");
+ dirs[idx++] = strcache_add (defdir);
+
+ if (len > max_incl_len)
+ max_incl_len = len;
+ }
+ }
+#endif
+
+ for (cpp = default_include_directories; *cpp != 0; ++cpp)
+ {
+ int e;
+
+ EINTRLOOP (e, stat (*cpp, &stbuf));
+ if (e == 0 && S_ISDIR (stbuf.st_mode))
+ {
+ size_t len = strlen (*cpp);
+ /* If dir name is written with trailing slashes, discard them. */
+ while (len > 1 && (*cpp)[len - 1] == '/')
+ --len;
+ if (len > max_incl_len)
+ max_incl_len = len;
+ dirs[idx++] = strcache_add_len (*cpp, len);
+ }
+ }
+
+ dirs[idx] = 0;
+
+ /* Now add each dir to the .INCLUDE_DIRS variable. */
+
+ for (cpp = dirs; *cpp != 0; ++cpp)
+ do_variable_definition (NILF, ".INCLUDE_DIRS", *cpp,
+ o_default, f_append, 0);
+
+ include_directories = dirs;
+}
+
+/* Expand ~ or ~USER at the beginning of NAME.
+ Return a newly malloc'd string or 0. */
+
+char *
+tilde_expand (const char *name)
+{
+#ifndef VMS
+ if (name[1] == '/' || name[1] == '\0')
+ {
+ char *home_dir;
+ int is_variable;
+
+ {
+ /* Turn off --warn-undefined-variables while we expand HOME. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ home_dir = allocated_variable_expand ("$(HOME)");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ is_variable = home_dir[0] != '\0';
+ if (!is_variable)
+ {
+ free (home_dir);
+ home_dir = getenv ("HOME");
+ }
+# if !defined(_AMIGA) && !defined(WINDOWS32)
+ if (home_dir == 0 || home_dir[0] == '\0')
+ {
+ char *logname = getlogin ();
+ home_dir = 0;
+ if (logname != 0)
+ {
+ struct passwd *p = getpwnam (logname);
+ if (p != 0)
+ home_dir = p->pw_dir;
+ }
+ }
+# endif /* !AMIGA && !WINDOWS32 */
+ if (home_dir != 0)
+ {
+ char *new = xstrdup (concat (2, home_dir, name + 1));
+ if (is_variable)
+ free (home_dir);
+ return new;
+ }
+ }
+# if !defined(_AMIGA) && !defined(WINDOWS32)
+ else
+ {
+ struct passwd *pwent;
+ char *userend = strchr (name + 1, '/');
+ if (userend != 0)
+ *userend = '\0';
+ pwent = getpwnam (name + 1);
+ if (pwent != 0)
+ {
+ if (userend == 0)
+ return xstrdup (pwent->pw_dir);
+ else
+ return xstrdup (concat (3, pwent->pw_dir, "/", userend + 1));
+ }
+ else if (userend != 0)
+ *userend = '/';
+ }
+# endif /* !AMIGA && !WINDOWS32 */
+#endif /* !VMS */
+ return 0;
+}
+
+/* Parse a string into a sequence of filenames represented as a chain of
+ struct nameseq's and return that chain. Optionally expand the strings via
+ glob().
+
+ The string is passed as STRINGP, the address of a string pointer.
+ The string pointer is updated to point at the first character
+ not parsed, which either is a null char or equals STOPMAP.
+
+ SIZE is how large (in bytes) each element in the new chain should be.
+ This is useful if we want them actually to be other structures
+ that have room for additional info.
+
+ STOPMAP is a map of characters that tell us to stop parsing.
+
+ PREFIX, if non-null, is added to the beginning of each filename.
+
+ FLAGS allows one or more of the following bitflags to be set:
+ PARSEFS_NOSTRIP - Do no strip './'s off the beginning
+ PARSEFS_NOAR - Do not check filenames for archive references
+ PARSEFS_NOGLOB - Do not expand globbing characters
+ PARSEFS_EXISTS - Only return globbed files that actually exist
+ (cannot also set NOGLOB)
+ PARSEFS_NOCACHE - Do not add filenames to the strcache (caller frees)
+ */
+
+void *
+parse_file_seq (char **stringp, size_t size, int stopmap,
+ const char *prefix, int flags)
+{
+ /* tmp points to tmpbuf after the prefix, if any.
+ tp is the end of the buffer. */
+ static char *tmpbuf = NULL;
+
+ int cachep = NONE_SET (flags, PARSEFS_NOCACHE);
+
+ struct nameseq *new = 0;
+ struct nameseq **newp = &new;
+#define NEWELT(_n) do { \
+ const char *__n = (_n); \
+ *newp = xcalloc (size); \
+ (*newp)->name = (cachep ? strcache_add (__n) : xstrdup (__n)); \
+ newp = &(*newp)->next; \
+ } while(0)
+
+ char *p;
+ glob_t gl;
+ char *tp;
+ int findmap = stopmap|MAP_VMSCOMMA|MAP_NUL;
+
+ if (NONE_SET (flags, PARSEFS_ONEWORD))
+ findmap |= MAP_BLANK;
+
+ /* Always stop on NUL. */
+ stopmap |= MAP_NUL;
+
+ if (size < sizeof (struct nameseq))
+ size = sizeof (struct nameseq);
+
+ if (NONE_SET (flags, PARSEFS_NOGLOB))
+ dir_setup_glob (&gl);
+
+ /* Get enough temporary space to construct the largest possible target. */
+ {
+ static size_t tmpbuf_len = 0;
+ size_t l = strlen (*stringp) + 1;
+ if (l > tmpbuf_len)
+ {
+ tmpbuf = xrealloc (tmpbuf, l);
+ tmpbuf_len = l;
+ }
+ }
+ tp = tmpbuf;
+
+ /* Parse STRING. P will always point to the end of the parsed content. */
+ p = *stringp;
+ while (1)
+ {
+ const char *name;
+ const char **nlist = 0;
+ char *tildep = 0;
+ int globme = 1;
+#ifndef NO_ARCHIVES
+ char *arname = 0;
+ char *memname = 0;
+#endif
+ char *s;
+ size_t nlen;
+ int tot, i;
+
+ /* Skip whitespace; at the end of the string or STOPCHAR we're done. */
+ NEXT_TOKEN (p);
+ if (STOP_SET (*p, stopmap))
+ break;
+
+ /* There are names left, so find the end of the next name.
+ Throughout this iteration S points to the start. */
+ s = p;
+ p = find_map_unquote (p, findmap);
+
+#ifdef VMS
+ /* convert comma separated list to space separated */
+ if (p && *p == ',')
+ *p =' ';
+#endif
+#ifdef _AMIGA
+ /* If we stopped due to a device name, skip it. */
+ if (p && p != s+1 && p[0] == ':')
+ p = find_map_unquote (p+1, findmap);
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* If we stopped due to a drive specifier, skip it.
+ Tokens separated by spaces are treated as separate paths since make
+ doesn't allow path names with spaces. */
+ if (p && p == s+1 && p[0] == ':'
+ && isalpha ((unsigned char)s[0]) && STOP_SET (p[1], MAP_DIRSEP))
+ p = find_map_unquote (p+1, findmap);
+#endif
+
+ if (!p)
+ p = s + strlen (s);
+
+ /* Strip leading "this directory" references. */
+ if (NONE_SET (flags, PARSEFS_NOSTRIP))
+#ifdef VMS
+ /* Skip leading '[]'s. should only be one set or bug somewhere else */
+ if (p - s > 2 && s[0] == '[' && s[1] == ']')
+ s += 2;
+ /* Skip leading '<>'s. should only be one set or bug somewhere else */
+ if (p - s > 2 && s[0] == '<' && s[1] == '>')
+ s += 2;
+#endif
+ /* Skip leading './'s. */
+ while (p - s > 2 && s[0] == '.' && s[1] == '/')
+ {
+ /* Skip "./" and all following slashes. */
+ s += 2;
+ while (*s == '/')
+ ++s;
+ }
+
+ /* Extract the filename just found, and skip it.
+ Set NAME to the string, and NLEN to its length. */
+
+ if (s == p)
+ {
+ /* The name was stripped to empty ("./"). */
+#if defined(_AMIGA)
+ /* PDS-- This cannot be right!! */
+ tp[0] = '\0';
+ nlen = 0;
+#else
+ tp[0] = '.';
+ tp[1] = '/';
+ tp[2] = '\0';
+ nlen = 2;
+#endif
+ }
+ else
+ {
+#ifdef VMS
+/* VMS filenames can have a ':' in them but they have to be '\'ed but we need
+ * to remove this '\' before we can use the filename.
+ * xstrdup called because S may be read-only string constant.
+ */
+ char *n = tp;
+ while (s < p)
+ {
+ if (s[0] == '\\' && s[1] == ':')
+ ++s;
+ *(n++) = *(s++);
+ }
+ n[0] = '\0';
+ nlen = strlen (tp);
+#else
+ nlen = p - s;
+ memcpy (tp, s, nlen);
+ tp[nlen] = '\0';
+#endif
+ }
+
+ /* At this point, TP points to the element and NLEN is its length. */
+
+#ifndef NO_ARCHIVES
+ /* If this is the start of an archive group that isn't complete, set up
+ to add the archive prefix for future files. A file list like:
+ "libf.a(x.o y.o z.o)" needs to be expanded as:
+ "libf.a(x.o) libf.a(y.o) libf.a(z.o)"
+
+ TP == TMP means we're not already in an archive group. Ignore
+ something starting with '(', as that cannot actually be an
+ archive-member reference (and treating it as such results in an empty
+ file name, which causes much lossage). Also if it ends in ")" then
+ it's a complete reference so we don't need to treat it specially.
+
+ Finally, note that archive groups must end with ')' as the last
+ character, so ensure there's some word ending like that before
+ considering this an archive group. */
+ if (NONE_SET (flags, PARSEFS_NOAR)
+ && tp == tmpbuf && tp[0] != '(' && tp[nlen-1] != ')')
+ {
+ char *n = strchr (tp, '(');
+ if (n)
+ {
+ /* This looks like the first element in an open archive group.
+ A valid group MUST have ')' as the last character. */
+ const char *e = p;
+ do
+ {
+ const char *o = e;
+ NEXT_TOKEN (e);
+ /* Find the end of this word. We don't want to unquote and
+ we don't care about quoting since we're looking for the
+ last char in the word. */
+ while (! STOP_SET (*e, findmap))
+ ++e;
+ /* If we didn't move, we're done now. */
+ if (e == o)
+ break;
+ if (e[-1] == ')')
+ {
+ /* Found the end, so this is the first element in an
+ open archive group. It looks like "lib(mem".
+ Reset TP past the open paren. */
+ nlen -= (n + 1) - tp;
+ tp = n + 1;
+
+ /* We can stop looking now. */
+ break;
+ }
+ }
+ while (*e != '\0');
+
+ /* If we have just "lib(", part of something like "lib( a b)",
+ go to the next item. */
+ if (! nlen)
+ continue;
+ }
+ }
+
+ /* If we are inside an archive group, make sure it has an end. */
+ if (tp > tmpbuf)
+ {
+ if (tp[nlen-1] == ')')
+ {
+ /* This is the natural end; reset TP. */
+ tp = tmpbuf;
+
+ /* This is just ")", something like "lib(a b )": skip it. */
+ if (nlen == 1)
+ continue;
+ }
+ else
+ {
+ /* Not the end, so add a "fake" end. */
+ tp[nlen++] = ')';
+ tp[nlen] = '\0';
+ }
+ }
+#endif
+
+ /* If we're not globbing we're done: add it to the end of the chain.
+ Go to the next item in the string. */
+ if (ANY_SET (flags, PARSEFS_NOGLOB))
+ {
+ NEWELT (concat (2, prefix, tmpbuf));
+ continue;
+ }
+
+ /* If we get here we know we're doing glob expansion.
+ TP is a string in tmpbuf. NLEN is no longer used.
+ We may need to do more work: after this NAME will be set. */
+ name = tmpbuf;
+
+ /* Expand tilde if applicable. */
+ if (tmpbuf[0] == '~')
+ {
+ tildep = tilde_expand (tmpbuf);
+ if (tildep != 0)
+ name = tildep;
+ }
+
+#ifndef NO_ARCHIVES
+ /* If NAME is an archive member reference replace it with the archive
+ file name, and save the member name in MEMNAME. We will glob on the
+ archive name and then reattach MEMNAME later. */
+ if (NONE_SET (flags, PARSEFS_NOAR) && ar_name (name))
+ {
+ ar_parse_name (name, &arname, &memname);
+ name = arname;
+ }
+#endif /* !NO_ARCHIVES */
+
+ /* glob() is expensive: don't call it unless we need to. */
+ if (NONE_SET (flags, PARSEFS_EXISTS) && strpbrk (name, "?*[") == NULL)
+ {
+ globme = 0;
+ tot = 1;
+ nlist = &name;
+ }
+ else
+ switch (glob (name, GLOB_ALTDIRFUNC, NULL, &gl))
+ {
+ case GLOB_NOSPACE:
+ out_of_memory ();
+
+ case 0:
+ /* Success. */
+ tot = gl.gl_pathc;
+ nlist = (const char **)gl.gl_pathv;
+ break;
+
+ case GLOB_NOMATCH:
+ /* If we want only existing items, skip this one. */
+ if (ANY_SET (flags, PARSEFS_EXISTS))
+ {
+ tot = 0;
+ break;
+ }
+ /* FALLTHROUGH */
+
+ default:
+ /* By default keep this name. */
+ tot = 1;
+ nlist = &name;
+ break;
+ }
+
+ /* For each matched element, add it to the list. */
+ for (i = 0; i < tot; ++i)
+#ifndef NO_ARCHIVES
+ if (memname != 0)
+ {
+ /* Try to glob on MEMNAME within the archive. */
+ struct nameseq *found = ar_glob (nlist[i], memname, size);
+ if (! found)
+ /* No matches. Use MEMNAME as-is. */
+ NEWELT (concat (5, prefix, nlist[i], "(", memname, ")"));
+ else
+ {
+ /* We got a chain of items. Attach them. */
+ if (*newp)
+ (*newp)->next = found;
+ else
+ *newp = found;
+
+ /* Find and set the new end. Massage names if necessary. */
+ while (1)
+ {
+ if (! cachep)
+ found->name = xstrdup (concat (2, prefix, name));
+ else if (prefix)
+ found->name = strcache_add (concat (2, prefix, name));
+
+ if (found->next == 0)
+ break;
+
+ found = found->next;
+ }
+ newp = &found->next;
+ }
+ }
+ else
+#endif /* !NO_ARCHIVES */
+ NEWELT (concat (2, prefix, nlist[i]));
+
+ if (globme)
+ globfree (&gl);
+
+#ifndef NO_ARCHIVES
+ free (arname);
+#endif
+
+ free (tildep);
+ }
+
+ *stringp = p;
+ return new;
+}
Index: src
===================================================================
--- src (nonexistent)
+++ src (revision 5)
Property changes on: src
___________________________________________________________________
Added: svn:ignore
## -0,0 +1,73 ##
+
+# install dir
+dist
+
+# Target build dirs
+.a1x-newlib
+.a2x-newlib
+.at91sam7s-newlib
+
+.build-machine
+
+.a1x-glibc
+.a2x-glibc
+.h3-glibc
+.h5-glibc
+.i586-glibc
+.i686-glibc
+.imx6-glibc
+.jz47xx-glibc
+.makefile
+.am335x-glibc
+.omap543x-glibc
+.p5600-glibc
+.power8-glibc
+.power8le-glibc
+.power9-glibc
+.power9le-glibc
+.m1000-glibc
+.riscv64-glibc
+.rk328x-glibc
+.rk33xx-glibc
+.rk339x-glibc
+.s8xx-glibc
+.s9xx-glibc
+.x86_64-glibc
+
+# Hidden files (each file)
+.makefile
+.dist
+.rootfs
+
+# src & hw requires
+.src_requires
+.src_requires_depend
+.requires
+.requires_depend
+
+# Tarballs
+*.gz
+*.bz2
+*.lz
+*.xz
+*.tgz
+*.txz
+
+# Signatures
+*.asc
+*.sig
+*.sign
+*.sha1sum
+
+# Patches
+*.patch
+
+# Descriptions
+*.dsc
+*.txt
+
+# Default linux config files
+*.defconfig
+
+# backup copies
+*~
Index: .
===================================================================
--- . (nonexistent)
+++ . (revision 5)
Property changes on: .
___________________________________________________________________
Added: svn:ignore
## -0,0 +1,73 ##
+
+# install dir
+dist
+
+# Target build dirs
+.a1x-newlib
+.a2x-newlib
+.at91sam7s-newlib
+
+.build-machine
+
+.a1x-glibc
+.a2x-glibc
+.h3-glibc
+.h5-glibc
+.i586-glibc
+.i686-glibc
+.imx6-glibc
+.jz47xx-glibc
+.makefile
+.am335x-glibc
+.omap543x-glibc
+.p5600-glibc
+.power8-glibc
+.power8le-glibc
+.power9-glibc
+.power9le-glibc
+.m1000-glibc
+.riscv64-glibc
+.rk328x-glibc
+.rk33xx-glibc
+.rk339x-glibc
+.s8xx-glibc
+.s9xx-glibc
+.x86_64-glibc
+
+# Hidden files (each file)
+.makefile
+.dist
+.rootfs
+
+# src & hw requires
+.src_requires
+.src_requires_depend
+.requires
+.requires_depend
+
+# Tarballs
+*.gz
+*.bz2
+*.lz
+*.xz
+*.tgz
+*.txz
+
+# Signatures
+*.asc
+*.sig
+*.sign
+*.sha1sum
+
+# Patches
+*.patch
+
+# Descriptions
+*.dsc
+*.txt
+
+# Default linux config files
+*.defconfig
+
+# backup copies
+*~
Radix cross Linux
The main Radix cross Linux repository contains the build scripts of packages, which have the most complete and common functionality for desktop machines
452 Commits
2 Branches
1 Tag