git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
On Solaris, when _XOPEN_EXTENDED is set, its header file forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE setting to say we are XPG5 or XPG6. Also on Solaris, XPG6 programs must be compiled with a c99 compiler, while non XPG6 programs must be compiled with a pre-c99 compiler. So when compiling on Solaris, always refrain from setting _XOPEN_EXTENDED, and then set _XOPEN_SOURCE to 600 or 500 based on whether a c99 compiler is being used or not. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Casey committed
Jun 5, 2009 at 18:36 UTC
4cb18a49dfd37f9ecabad603d845382863513378
1 file changed
+14
-1
git-compat-util.h
+14
-1
@@ -39,7 +39,20 @@
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/* Approximation of the length of the decimal representation of this type. */
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#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
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-#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && !defined(_M_UNIX)
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+#if defined(__sun__)
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+ /*
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+ * On Solaris, when _XOPEN_EXTENDED is set, its header file
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+ * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE
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+ * setting to say we are XPG5 or XPG6. Also on Solaris,
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+ * XPG6 programs must be compiled with a c99 compiler, while
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+ * non XPG6 programs must be compiled with a pre-c99 compiler.
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+ */
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+# if __STDC_VERSION__ - 0 >= 199901L
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+# define _XOPEN_SOURCE 600
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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)
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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