blob: 6b2f69870e88d73f6fd4e6c0d6643e8479bcf3e5 [file] [log] [blame]
Patrick Williamsc124f4f2015-09-15 14:41:29 -05001remove AC_USE_SYSTEM_EXTENSIONS to fix the autoconf error "AC_REQUIRE: circular
2dependency of AC_GNU_SOURCE"
3
4Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
5
6Upstream-Status: Inappropriate [licensing]
7
8Index: gzip-1.3.12/m4/extensions.m4
9===================================================================
10--- gzip-1.3.12.orig/m4/extensions.m4 2010-08-16 14:18:16.000000000 +0800
11+++ gzip-1.3.12/m4/extensions.m4 2010-08-16 14:21:54.000000000 +0800
12@@ -12,44 +12,6 @@
13 # enough in this area it's likely we'll need to redefine
14 # AC_USE_SYSTEM_EXTENSIONS for quite some time.
15
16-# AC_USE_SYSTEM_EXTENSIONS
17-# ------------------------
18-# Enable extensions on systems that normally disable them,
19-# typically due to standards-conformance issues.
20-AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
21-[
22- AC_BEFORE([$0], [AC_COMPILE_IFELSE])
23- AC_BEFORE([$0], [AC_RUN_IFELSE])
24-
25- AC_REQUIRE([AC_GNU_SOURCE])
26- AC_REQUIRE([AC_AIX])
27- AC_REQUIRE([AC_MINIX])
28-
29- AH_VERBATIM([__EXTENSIONS__],
30-[/* Enable extensions on Solaris. */
31-#ifndef __EXTENSIONS__
32-# undef __EXTENSIONS__
33-#endif
34-#ifndef _POSIX_PTHREAD_SEMANTICS
35-# undef _POSIX_PTHREAD_SEMANTICS
36-#endif
37-#ifndef _TANDEM_SOURCE
38-# undef _TANDEM_SOURCE
39-#endif])
40- AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
41- [ac_cv_safe_to_define___extensions__],
42- [AC_COMPILE_IFELSE(
43- [AC_LANG_PROGRAM([
44-# define __EXTENSIONS__ 1
45- AC_INCLUDES_DEFAULT])],
46- [ac_cv_safe_to_define___extensions__=yes],
47- [ac_cv_safe_to_define___extensions__=no])])
48- test $ac_cv_safe_to_define___extensions__ = yes &&
49- AC_DEFINE([__EXTENSIONS__])
50- AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
51- AC_DEFINE([_TANDEM_SOURCE])
52-])
53-
54 # gl_USE_SYSTEM_EXTENSIONS
55 # ------------------------
56 # Enable extensions on systems that normally disable them,