In git-compat-util.h, we do
#define _XOPEN_SOURCE 600
#define _XOPEN_SOURCE_EXTENDED 1
unless we are on BSD or SCO.
On OpenSolaris (200811), /usr/include/sys/feature_tests.h has this nice
table:
Feature Test Macro Specification
------------------------------------------------ -------------
_XOPEN_SOURCE XPG3
_XOPEN_SOURCE && _XOPEN_VERSION = 4 XPG4
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1 XPG4v2
_XOPEN_SOURCE = 500 XPG5
_XOPEN_SOURCE = 600 (or POSIX_C_SOURCE=200112L) XPG6
Later in the same header, compilation with -c99 is made to fail if _XPG6 is
not set, like this:
#if defined(_STDC_C99) && (defined(__XOPEN_OR_POSIX) && !defined(_XPG6))
#error "Compiler or options invalid for pre-UNIX 03 X/Open applications \
and pre-2001 POSIX applications"
#elif ...
The problem is that they check things in an order that is inconvenient for
us. When they see _XOPEN_SOURCE_EXTENDED, they declare that we are XPG4v2,
regardless of the value of _XOPEN_SOURCE.
To work around this problem, do not define _XOPEN_SOURCE_EXTENDED on
Sun's.
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
git-compat-util.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/git-compat-util.h b/git-compat-util.h
index c7cf2d5..4236647 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -41,8 +41,10 @@
#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && !defined(_M_UNIX)
#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
+#ifndef __sun__
#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
#endif
+#endif
#define _ALL_SOURCE 1
#define _GNU_SOURCE 1
#define _BSD_SOURCE 1
--
1.6.3.1.145.gb74d77
--
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