configure: Save configure arguments to gcc/configargs.h.

        * configure: Save configure arguments to gcc/configargs.h.

        * gcc.c (main): Include generated configargs.h header
        and use arguments in '-v' output.

From-SVN: r36734

1 files changed, 11 insertions, 1 deletions

diff --git a/configure b/configure
index e0d60261c70..70dcb5bb04e 100755
--- a/configure
+++ b/configure
@@ -88,7 +88,7 @@ subdirs=
 target_alias=NOTARGET
 target_makefile_frag=
 undefs=NOUNDEFS
-version="$Revision: 1.27 $"
+version="$Revision: 1.28 $"
 x11=default
 bindir='${exec_prefix}/bin'
 sbindir='${exec_prefix}/sbin'
@@ -400,6 +400,10 @@ do
 	esac
 done
 
+# Remember the pristine configure arguments for later.  $arguments gets
+# built up with further defaults in preparation for recursion.
+original_arguments=$arguments
+
 # process host and target
 
 # Do some error checking and defaulting for the host and target type.
@@ -1600,6 +1604,12 @@ if [ -z "${norecursion}" ] && [ -n "${configdirs}" ] ; then
         done
 fi
 
+# Remember configure arguments for later.
+cat > gcc/configargs.h <<EOF
+/* Generated automatically. */
+static const char configuration_arguments[] = "$original_arguments";
+EOF
+
 # Perform the same cleanup as the trap handler, minus the "exit 1" of course,
 # and reset the trap handler.
 rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos