| remove AC_USE_SYSTEM_EXTENSIONS to fix the autoconf error "AC_REQUIRE: circular |
| dependency of AC_GNU_SOURCE" |
| |
| Signed-off-by: Zhai Edwin <edwin.zhai@intel.com> |
| |
| Upstream-Status: Inappropriate [licensing] |
| |
| Index: gzip-1.3.12/m4/extensions.m4 |
| =================================================================== |
| --- gzip-1.3.12.orig/m4/extensions.m4 2010-08-16 14:18:16.000000000 +0800 |
| +++ gzip-1.3.12/m4/extensions.m4 2010-08-16 14:21:54.000000000 +0800 |
| @@ -12,44 +12,6 @@ |
| # enough in this area it's likely we'll need to redefine |
| # AC_USE_SYSTEM_EXTENSIONS for quite some time. |
| |
| -# AC_USE_SYSTEM_EXTENSIONS |
| -# ------------------------ |
| -# Enable extensions on systems that normally disable them, |
| -# typically due to standards-conformance issues. |
| -AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], |
| -[ |
| - AC_BEFORE([$0], [AC_COMPILE_IFELSE]) |
| - AC_BEFORE([$0], [AC_RUN_IFELSE]) |
| - |
| - AC_REQUIRE([AC_GNU_SOURCE]) |
| - AC_REQUIRE([AC_AIX]) |
| - AC_REQUIRE([AC_MINIX]) |
| - |
| - AH_VERBATIM([__EXTENSIONS__], |
| -[/* Enable extensions on Solaris. */ |
| -#ifndef __EXTENSIONS__ |
| -# undef __EXTENSIONS__ |
| -#endif |
| -#ifndef _POSIX_PTHREAD_SEMANTICS |
| -# undef _POSIX_PTHREAD_SEMANTICS |
| -#endif |
| -#ifndef _TANDEM_SOURCE |
| -# undef _TANDEM_SOURCE |
| -#endif]) |
| - AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], |
| - [ac_cv_safe_to_define___extensions__], |
| - [AC_COMPILE_IFELSE( |
| - [AC_LANG_PROGRAM([ |
| -# define __EXTENSIONS__ 1 |
| - AC_INCLUDES_DEFAULT])], |
| - [ac_cv_safe_to_define___extensions__=yes], |
| - [ac_cv_safe_to_define___extensions__=no])]) |
| - test $ac_cv_safe_to_define___extensions__ = yes && |
| - AC_DEFINE([__EXTENSIONS__]) |
| - AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) |
| - AC_DEFINE([_TANDEM_SOURCE]) |
| -]) |
| - |
| # gl_USE_SYSTEM_EXTENSIONS |
| # ------------------------ |
| # Enable extensions on systems that normally disable them, |