nw="$nw -Wconversion" # These warnings usually don't point to mistakes.
nw="$nw -Wsign-conversion" # Likewise.
# Enable all GCC warnings not in this list.
-gl_MANYWARN_COMPLEMENT[warnings], [$warnings], [$nw])
+gl_MANYWARN_COMPLEMENT([warnings], [$warnings], [$nw])
for w in $warnings; do
gl_WARN_ADD([$w])
done