compiler: -Wendif-labels hardening

Do not warn whenever an #else or an #endif are followed by text.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/configure.ac b/configure.ac
index 2fd7e74766fa7b7b1429d50c6eb748c5db6e7e68..b7fde241551bfef92bffeb999bde5fa1d4765ffc 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -711,6 +711,7 @@ AX_CHECK_COMPILE_FLAG([-Werror=return-type], [CFLAGS="$CFLAGS -Werror=return-typ
 AX_CHECK_COMPILE_FLAG([-Werror=incompatible-pointer-types], [CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-Wformat=2], [CFLAGS="$CFLAGS -Wformat=2"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"],,[-Werror])
+AX_CHECK_COMPILE_FLAG([-Wendif-labels], [CFLAGS="$CFLAGS -Wendif-labels"],,[-Werror])
 
 AX_CHECK_LINK_FLAG([-z relro], [LDLAGS="$LDLAGS -z relro"],,[])
 AX_CHECK_LINK_FLAG([-z now], [LDLAGS="$LDLAGS -z now"],,[])