Radix cross Linux

Index: llvm/cmake/modules/LLVMInstallSymlink.cmake
===================================================================
--- llvm/cmake/modules/LLVMInstallSymlink.cmake	(nonexistent)
+++ llvm/cmake/modules/LLVMInstallSymlink.cmake	(revision 40)
@@ -0,0 +1,29 @@
+# We need to execute this script at installation time because the
+# DESTDIR environment variable may be unset at configuration time.
+# See PR8397.
+
+# Set to an arbitrary directory to silence GNUInstallDirs warnings
+# regarding being unable to determine libdir.
+set(CMAKE_INSTALL_LIBDIR "lib")
+# Already included at llvm/CmakeLists.txt:
+#include(GNUInstallDirs)
+
+function(install_symlink name target outdir)
+  set(DESTDIR $ENV{DESTDIR})
+  if(NOT IS_ABSOLUTE "${outdir}")
+    set(outdir "${CMAKE_INSTALL_PREFIX}/${outdir}")
+  endif()
+  set(outdir "${DESTDIR}${outdir}")
+
+  message(STATUS "Creating ${name}")
+
+  execute_process(
+    COMMAND "${CMAKE_COMMAND}" -E create_symlink "${target}" "${name}"
+    WORKING_DIRECTORY "${outdir}" ERROR_VARIABLE has_err)
+  if(CMAKE_HOST_WIN32 AND has_err)
+    execute_process(
+      COMMAND "${CMAKE_COMMAND}" -E copy "${target}" "${name}"
+      WORKING_DIRECTORY "${outdir}")
+  endif()
+
+endfunction()