Fix _XOPEN_SOURCE problem on DragonFly
As on FreeBSD, defining _XOPEN_SOURCE to 600 on DragonFly BSD 2.4-RELEASE or later hides symbols from programs, which leads to implicit declaration of functions, making the return value to be assumed an int. On architectures where sizeof(int) < sizeof(void *), this can cause unexpected behaviors or crashes. This change won't affect other OSes unless they define __DragonFly__ macro, or older versions of DragonFly BSD as the current git code doesn't rely on the features only available with _XOPEN_SOURCE set to 600 on DragonFly. Signed-off-by: YONETANI Tomokazu <y0netan1@dragonflybsd.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
YONETANI Tomokazu committed
Apr 2, 2010 at 16:52 UTC
6555b196f00128f13ab8f719ee1e156238f16bb3
1 file changed
+2
-1
git-compat-util.h
+2
-1
@@ -55,7 +55,8 @@
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# else
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# define _XOPEN_SOURCE 500
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# endif
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-#elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && !defined(_M_UNIX) && !defined(sgi)
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+#elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
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+ !defined(_M_UNIX) && !defined(sgi) && !defined(__DragonFly__)
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#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
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#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
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#endif