[svn] gcry - r1431 - trunk

[svn author marcus]

Author: marcus
Date: 2010-04-19 19:15:03 +0200 (Mon, 19 Apr 2010)
New Revision: 1431

Modified:
   trunk/ChangeLog
   trunk/configure.ac
Log:
2010-04-19  Marcus Brinkmann  <marcus at g10code.de>

	* configure.ac: Check for -fno-strict-aliasing.


Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog	2010-04-19 17:08:12 UTC (rev 1430)
+++ trunk/ChangeLog	2010-04-19 17:15:03 UTC (rev 1431)
@@ -1,3 +1,7 @@
+2010-04-19  Marcus Brinkmann  <marcus at g10code.de>
+
+	* configure.ac: Check for -fno-strict-aliasing.
+
 2010-04-12  Brad Hards  <bradh at frogmouth.net>  (wk)
 
 	* configure.ac: Print more verbose info at the end.

Modified: trunk/configure.ac
===================================================================
--- trunk/configure.ac	2010-04-19 17:08:12 UTC (rev 1430)
+++ trunk/configure.ac	2010-04-19 17:15:03 UTC (rev 1431)
@@ -928,6 +928,17 @@
         if test x"$_gcc_wopt" = xyes ; then
           CFLAGS="$CFLAGS -Wpointer-arith"
         fi
+
+        AC_MSG_CHECKING([if gcc supports -fno-strict-aliasing])
+        _gcc_cflags_save=$CFLAGS
+        CFLAGS="-fno-strict-aliasing"
+        AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),_gcc_wopt=yes,_gcc_wopt=no)
+        AC_MSG_RESULT($_gcc_wopt)
+        CFLAGS=$_gcc_cflags_save;
+        if test x"$_gcc_wopt" = xyes ; then
+          CFLAGS="$CFLAGS -fno-strict-aliasing"
+        fi
+
     fi
 
 fi