Don't use -Wtraditional.

src/libraries/libisc-new/configure.in

@@ -18,7 +18,7 @@ dnl  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
 dnl Process this file with autoconf to produce a configure script.
 
-AC_REVISION($Revision: 1.2 $)dnl
+AC_REVISION($Revision: 1.3 $)dnl
 AC_INIT(src/isc_master.c)
 AM_INIT_AUTOMAKE(isc, 0.99)
 
@@ -73,8 +73,10 @@ AC_TYPE_SIZE_T
 
 CMOD_C_ATTRIBUTE_UNUSED
 
-[if test -n "$GCC"; then
-    CFLAGS="$CFLAGS -Wall -W -Wtraditional -Wshadow -Wpointer-arith"]
+[if test -n "$GCC"; then]
+    dnl "-Wtraditional" isn't really useful: we don't support
+    dnl pre-c89-compilers.
+    [CFLAGS="$CFLAGS -Wall -W -Wshadow -Wpointer-arith"]
     CMOD_COMPILER_CC_ACCEPTS([-Wbad-function-cast])
     CMOD_COMPILER_CC_ACCEPTS([-Wcast-qual])
     CMOD_COMPILER_CC_ACCEPTS([-Wcast-align])