Make format security warnings errors.

diff --git a/build.mk.in b/build.mk.in
index 33598acf08f01d4d92017c1d53c2f8475d0edbb9..06318ee9f5537c8ce71f238618f6f5375f312a4a 100644 (file)
--- a/build.mk.in
+++ b/build.mk.in
@@ -81,7 +81,7 @@ realchecksettings:
 @endif@
 MFLAGS+=CHECKEDSETTINGS=1
 
-CFLAGS+=-Wall -g -finline-functions -funroll-loops
+CFLAGS+=-Wall -g -finline-functions -funroll-loops -Werror=format-security
 @ifndef@ NOC99
 CFLAGS+=-std=c99
 @endif@