Add signedness warning flag and fix fallout
diff --git a/configure.ac b/configure.ac
index f60b208..ffed655 100644
--- a/configure.ac
+++ b/configure.ac
@@ -170,7 +170,10 @@
AM_CONDITIONAL(BUILD_TESTS, test x$enable_tests = xyes)
if test "x$GCC" = "xyes"; then
- GCC_CFLAGS="-Wall -g -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden"
+ GCC_CFLAGS="-Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes \
+ -Wno-unused-parameter -Wno-missing-field-initializers \
+ -g -fvisibility=hidden"
+
fi
AC_SUBST(GCC_CFLAGS)