Ian Lance Taylor <iant@xxxxxxxxxx> writes: > The trick to find out if a -Wno- option is supported is to force a > compiler error. E.g., The trick to find out if a -Wno- option is supported is to check if the positive form is accepted. See ACX_PROG_CC_WARNING_OPTS. Andreas. -- Andreas Schwab, schwab@xxxxxxxxxxxxxx GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."