Warnings are bad, mmkay?

.make-and-exec

@@ -8,7 +8,7 @@ if [[ "$0" == *-dbg ]]; then opt='-Og -fsanitize=undefined,address -DDEBUG'; els
 targetfile="$(dirname "$0")/.make-and-exec-binaries/$(basename "$0")"
 if [[ ! -f "${targetfile}" || "${sourcename}" -nt "${targetfile}" || "${BASH_SOURCE}" -nt "${targetfile}" ]]; then
 	mkdir -p "$(dirname "$0")/.make-and-exec-binaries"
-	gcc ${opt} ${CFLAGS} -o "${targetfile}" "${sourcename}" || exit
+	gcc -Wall -Wextra -Wshadow -Werror ${opt} ${CFLAGS} -o "${targetfile}" "${sourcename}" || exit
 	testfile="$(dirname "$0")/.$(basename "${0%-dbg}")-test"
 	if [[ -f "${testfile}" ]]; then
 		"${testfile}" || { st=$?; touch -d '1970-01-01T00:00:00Z' "${targetfile}"; exit "${st}"; }