[PATCH] Do not set CC_FOR_BUILD flags

Upstream-status: Pending

AC_WIRESHARK_COMPILER_FLAGS_CHECK() is checking which options CC is supported,
and put the supported options into CFLAGS, but it should not put them into 
CFLAGS_FOR_BUILD. since CC and BUILD_CC can be different, CFLAGS_FOR_BUILD is
used by BUILD_CC 

BUILD_CC is used to generated host tools, do not use the gcc's optimised options,
do not effect the running of host tools. so do not set CC_FOR_BUILD flags.

Signed-off-by: Roy.Li <rongqing.li@windriver.com>
---
 acinclude.m4 | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 136fc27..8d3d360 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1755,10 +1755,6 @@ if test "x$ac_supports_gcc_flags" = "xyes" ; then
               # just the new option.
               #
               CFLAGS="$CFLAGS_saved $GCC_OPTION"
-              #
-              # Add it to the flags we use when building build tools.
-              #
-              CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD $GCC_OPTION"
             ],
             [
               AC_MSG_RESULT(yes)
@@ -1771,10 +1767,6 @@ if test "x$ac_supports_gcc_flags" = "xyes" ; then
           # just the new option.
           #
           CFLAGS="$CFLAGS_saved $GCC_OPTION"
-          #
-          # Add it to the flags we use when building build tools.
-          #
-          CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD $GCC_OPTION"
         fi
       ],
       [
-- 
1.9.1