finding gcc's installation prefix

Paul Jarc prj@po.cwru.edu
Thu Nov 13 16:54:00 GMT 2008


(I'm not subscribed here; Mail-Followup-To set.)

To find gcc's installation prefix, I've been using
"gcc -print-search-dirs".  That worked up until 4.3, but now gcc
chases symlinks so it can print symlink-free paths.  What I want is
the installation path just as it was spelled in
"./configure --prefix=...".  That spelling is an absolute path with no
double slashes or .. elements, but it does have symlinks.  Is there
any way to get that with gcc 4.3?  This patch seems to restore the
behavior I want, but will it have any harmful consequences?  Is there
any reason this change shouldn't be applied upsteam?

--- gcc/gcc.c	2008-03-02 17:54:56.000000000 -0500
+++ gcc/gcc.c	2008-11-13 00:29:45.000000000 -0500
@@ -3413,7 +3413,7 @@
   /* FIXME: make_relative_prefix doesn't yet work for VMS.  */
   if (!gcc_exec_prefix)
     {
-      gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
+      gcc_exec_prefix = make_relative_prefix_ignore_links (argv[0], standard_bindir_prefix,
 					      standard_exec_prefix);
       gcc_libexec_prefix = make_relative_prefix (argv[0],
 						 standard_bindir_prefix,



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