| Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | remove AC_USE_SYSTEM_EXTENSIONS to fix the autoconf error "AC_REQUIRE: circular |
| 2 | dependency of AC_GNU_SOURCE" |
| 3 | |
| 4 | Signed-off-by: Zhai Edwin <edwin.zhai@intel.com> |
| 5 | |
| 6 | Upstream-Status: Inappropriate [licensing] |
| 7 | |
| 8 | Index: 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, |