# Enable extensions on systems that normally disable them. dnl Copyright (C) 2003, 2006 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This file is only needed in autoconf <= 2.59. Newer versions of autoconf dnl have a macro AC_USE_SYSTEM_EXTENSIONS with identical semantics. # gl_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, # typically due to standards-conformance issues. AC_DEFUN([gl_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]) AC_DEFINE([__EXTENSIONS__]) ])