23 lines
637 B
Plaintext
23 lines
637 B
Plaintext
$OpenBSD: patch-configure_ac,v 1.1 2010/07/06 21:10:50 sthen Exp $
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--- configure.ac.orig Tue Jul 6 15:22:08 2010
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+++ configure.ac Tue Jul 6 15:22:43 2010
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@@ -69,7 +69,17 @@ fi
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# check for extra compiler options (warning options)
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if test "${GCC}" = "yes"; then
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- CFLAGS="${CFLAGS} -Wall -W -Wshadow -pedantic -std=gnu99"
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+ CFLAGS="${CFLAGS} -Wall -W -Wshadow -pedantic"
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+
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+ # Use std=gnu99 if we have new enough GCC
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+ old_cflags=${CFLAGS}
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+ CFLAGS="-std=gnu99"
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+ AC_TRY_COMPILE([
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+ ],, [
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+ CFLAGS="${CFLAGS} $old_cflags"
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+ ], [
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+ CFLAGS="${old_cflags}"
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+ ])
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fi
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AC_ARG_ENABLE(extra-warnings,
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