Also drop -Winline from set of warning flags as it only produces noise.
check_cflags -Wundef
check_cflags -Wmissing-prototypes
check_cflags -Wstrict-prototypes
-enabled extra_warnings && check_cflags -Winline
-enabled extra_warnings && check_cflags -Wcast-qual
+
+if enabled extra_warnings; then
+ check_cflags -Wcast-qual
+ check_cflags -Wextra
+ check_cflags -Wpedantic
+fi
check_disable_warning(){
warning_flag=-W${1#-Wno-}