1# gl_USE_SYSTEM_EXTENSIONS
2# ------------------------
3# Enable extensions on systems that normally disable them,
4# typically due to standards-conformance issues.
5AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], [
6  AC_REQUIRE([AC_GNU_SOURCE])
7  AH_VERBATIM([__EXTENSIONS__],
8[/* Enable extensions on Solaris.  */
9#ifndef __EXTENSIONS__
10# undef __EXTENSIONS__
11#endif])
12  AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
13  AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
14  AC_DEFINE([__EXTENSIONS__])
15])
16