Enable gcc flag -Wundef

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5174 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/Makefile.target b/Makefile.target
index 246448401290d5195440a06bc5b639112ac8754e..2e8e0a0eeff123c11df0a68b3d083e5b5c26ada4 100644 (file)
--- a/Makefile.target
+++ b/Makefile.target
@@ -73,7 +73,7 @@ endif
 PROGS=$(QEMU_PROG)
 
 # We require -O2 to avoid the stack setup prologue in EXIT_TB
-OP_CFLAGS := -Wall -O2 -g -fno-strict-aliasing
+OP_CFLAGS := -Wall -Wundef -O2 -g -fno-strict-aliasing
 
 # cc-option
 # Usage: OP_CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)

diff --git a/configure b/configure
index 0868ade64987112b4c66856c6130f9d128761282..a166133ab685415546ea9bea4a363e90a4169a9f 100755 (executable)
--- a/configure
+++ b/configure
@@ -346,7 +346,7 @@ for opt do
 done
 
 # default flags for all hosts
-CFLAGS="$CFLAGS -Wall -O2 -g -fno-strict-aliasing"
+CFLAGS="$CFLAGS -Wall -Wundef -O2 -g -fno-strict-aliasing"
 LDFLAGS="$LDFLAGS -g"
 if test "$werror" = "yes" ; then
 CFLAGS="$CFLAGS -Werror"