From ee0f32d723431cdae943e8a8d45ecdb856a0e76c Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Wed, 11 Aug 2010 23:53:59 +0000
Subject: configure: Add detection of the linker version string.  - Review
 appreciated, as long as you understand that I understand that this is    a
 horrible hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110883 91177308-0d34-0410-b5e6-96231b3b80d8
---
 configure | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

(limited to 'configure')

diff --git a/configure b/configure
index 831acb6..dd61dab 100755
--- a/configure
+++ b/configure
@@ -8729,6 +8729,31 @@ fi
 done
 
 
+{ echo "$as_me:$LINENO: checking for linker version" >&5
+echo $ECHO_N "checking for linker version... $ECHO_C" >&6; }
+if test "${llvm_cv_link_version+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+   version_string="$(ld -v 2>&1 | head -1)"
+
+   # Check for ld64.
+   if (echo "$version_string" | grep -q "ld64"); then
+     llvm_cv_link_version=$(echo "$version_string" | sed -e "s#.*ld64-\([^ ]*\)#\1#")
+   else
+     llvm_cv_link_version=$(echo "$version_string" | sed -e "s#[^0-9]*\([0-9.]*\).*#\1#")
+   fi
+
+fi
+{ echo "$as_me:$LINENO: result: $llvm_cv_link_version" >&5
+echo "${ECHO_T}$llvm_cv_link_version" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define HOST_LINK_VERSION "$llvm_cv_link_version"
+_ACEOF
+
+
+
 { echo "$as_me:$LINENO: checking for compiler -Wl,-R<path> option" >&5
 echo $ECHO_N "checking for compiler -Wl,-R<path> option... $ECHO_C" >&6; }
 if test "${llvm_cv_link_use_r+set}" = set; then
@@ -11395,7 +11420,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 11398 "configure"
+#line 11423 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
-- 
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