From: Mark Andrews <marka@isc.org>
Date: Thu, 10 Aug 2006 01:55:05 +0000 (+0000)
Subject: 2071.   [port]          Test whether gcc accepts -fno-strict-aliasing.
X-Git-Tag: v9.3.3rc1~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32d442edd087407a4ae2cec2d19d48863f2499d0;p=thirdparty%2Fbind9.git

2071.   [port]          Test whether gcc accepts -fno-strict-aliasing.
                        [RT #16324]
---

diff --git a/CHANGES b/CHANGES
index fb898552a68..b97fc41782a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+2071.	[port]		Test whether gcc accepts -fno-strict-aliasing.
+			[RT #16324]
+
 2070.	[bug]		The remote address was not always displayed when
 			reporting dispatch failures. [RT #16315]
 
diff --git a/configure.in b/configure.in
index 22421346d83..83c5268327b 100644
--- a/configure.in
+++ b/configure.in
@@ -18,7 +18,7 @@ AC_DIVERT_PUSH(1)dnl
 esyscmd([sed "s/^/# /" COPYRIGHT])dnl
 AC_DIVERT_POP()dnl
 
-AC_REVISION($Revision: 1.294.2.23.2.65 $)
+AC_REVISION($Revision: 1.294.2.23.2.66 $)
 
 AC_INIT(lib/dns/name.c)
 AC_PREREQ(2.13)
@@ -802,7 +802,18 @@ MKDEPCFLAGS="-M"
 IRIX_DNSSEC_WARNINGS_HACK=""
 
 if test "X$GCC" = "Xyes"; then
+	AC_MSG_CHECKING(if "$CC" supports -fno-strict-aliasing)
+	SAVE_CFLAGS=$CFLAGS
+	CFLAGS=-fno-strict-aliasing
+	AC_TRY_COMPILE(,, [FNOSTRICTALIASING=yes],[FNOSTRICTALIASING=no])
+	CFLAGS=$SAVE_CFLAGS
+	if test "$FNOSTRICTALIASING" = "yes"; then
+		AC_MSG_RESULT(yes)
 	STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith -fno-strict-aliasing"
+	else
+		AC_MSG_RESULT(no)
+	STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith"
+	fi
 	case "$host" in
 	*-hp-hpux*)
 		LDFLAGS="-Wl,+vnocompatwarnings $LDFLAGS"
diff --git a/lib/bind/configure.in b/lib/bind/configure.in
index 069404c0509..0ccb918244d 100644
--- a/lib/bind/configure.in
+++ b/lib/bind/configure.in
@@ -13,7 +13,7 @@
 # OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 
-AC_REVISION($Revision: 1.83.2.5.2.29 $)
+AC_REVISION($Revision: 1.83.2.5.2.30 $)
 
 AC_INIT(resolv/herror.c)
 AC_PREREQ(2.13)
@@ -515,7 +515,18 @@ MKDEPCFLAGS="-M"
 IRIX_DNSSEC_WARNINGS_HACK=""
 
 if test "X$GCC" = "Xyes"; then
-	STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wpointer-arith -fno-strict-aliasing"
+        AC_MSG_CHECKING(if "$CC" supports -fno-strict-aliasing)
+        SAVE_CFLAGS=$CFLAGS
+        CFLAGS=-fno-strict-aliasing
+        AC_TRY_COMPILE(,, [FNOSTRICTALIASING=yes],[FNOSTRICTALIASING=no])
+        CFLAGS=$SAVE_CFLAGS
+        if test "$FNOSTRICTALIASING" = "yes"; then
+                AC_MSG_RESULT(yes)
+		STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith -fno-strict-aliasing"
+        else
+                AC_MSG_RESULT(no)
+		STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith"
+        fi
 else
 	case $host in
 	*-dec-osf*)