autogen.sh: Promote -Wsign-compare to an error

It is usually a sign of deep errors.  We really want to avoid them.

Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/autogen.sh b/autogen.sh
index 98ae1a9c5b764a6a452c84de66f7f5f3bfd3455c..3c7c37acf873352b925e2ccf71314b5f36b8aa22 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -9,6 +9,7 @@ CFLAGS="$CFLAGS -Werror=implicit-function-declaration"
 CFLAGS="$CFLAGS -Werror=implicit-int"
 CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"
 CFLAGS="$CFLAGS -Werror=int-conversion"
+CFLAGS="$CFLAGS -Werror=sign-compare"
 CFLAGS="$CFLAGS -Wno-expansion-to-defined"
 CFLAGS="$CFLAGS -Wno-unknown-attributes"
 CFLAGS="$CFLAGS -Wno-unknown-warning-option"