[gcc(refs/users/marxin/heads/marxin-gcc-benchmark-branch)] Improve detection of ld_date.

[Martin Liska]

https://gcc.gnu.org/g:08bf7bde9f2987b1c623d272cc71fc14a1622442

commit 08bf7bde9f2987b1c623d272cc71fc14a1622442
Author: Martin Liska <mliska@suse.cz>
Date:   Fri Feb 28 17:52:57 2020 +0100

    Improve detection of ld_date.
    
            PR other/93965
            * configure.ac: Improve detection of ld_date by requiring
            either two dashes or none.
            * configure: Regenerate.

Diff:
---
 gcc/ChangeLog    | 7 +++++++
 gcc/configure    | 2 +-
 gcc/configure.ac | 2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1451807f7d9..1c2692a935c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2020-02-28  Martin Liska  <mliska@suse.cz>
+
+	PR other/93965
+	* configure.ac: Improve detection of ld_date by requiring
+	either two dashes or none.
+	* configure: Regenerate.
+
 2020-02-28  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR rtl-optimization/93564
diff --git a/gcc/configure b/gcc/configure
index f55cdb8c77f..5381e107bce 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -23384,7 +23384,7 @@ if test $in_tree_ld != yes ; then
       ld_vers=`echo $ld_ver | sed -n \
 	  -e 's,^.*[	 ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
     fi
-    ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
+    ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)\(-*\)\([01][0-9]\)\2\([0-3][0-9]\).*$,\1\3\4,p'`
     ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
     ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
     ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 0e6e475950d..0d6230e0ca1 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2804,7 +2804,7 @@ if test $in_tree_ld != yes ; then
       ld_vers=`echo $ld_ver | sed -n \
 	  -e 's,^.*[	 ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
     fi
-    ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
+    ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)\(-*\)\([01][0-9]\)\2\([0-3][0-9]\).*$,\1\3\4,p'`
     ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
     ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
     ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`