| # obstack-printf.m4 serial 4 |
| dnl Copyright (C) 2008-2012 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 From Eric Blake. |
| dnl Test whether obstack_printf() exists. For now, we assume that |
| dnl obstack_vprintf behaves identically, so we only test for one. |
| |
| AC_DEFUN([gl_FUNC_OBSTACK_PRINTF], |
| [ |
| dnl Persuade glibc <stdio.h> to declare obstack_printf(), obstack_vprintf(). |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| |
| AC_REQUIRE([gl_STDIO_H_DEFAULTS]) |
| AC_CHECK_FUNCS_ONCE([obstack_printf]) |
| if test $ac_cv_func_obstack_printf = no ; then |
| gl_REPLACE_OBSTACK_PRINTF |
| fi |
| |
| gl_DECL_OBSTACK_PRINTF |
| ]) |
| |
| AC_DEFUN([gl_REPLACE_OBSTACK_PRINTF], |
| [ |
| AC_REQUIRE([gl_STDIO_H_DEFAULTS]) |
| if test $ac_cv_func_obstack_printf = yes; then |
| REPLACE_OBSTACK_PRINTF=1 |
| fi |
| ]) |
| |
| dnl Ensure obstack_printf() and obstack_vprintf() are declared |
| dnl (whether or not they are being replaced). |
| AC_DEFUN([gl_DECL_OBSTACK_PRINTF], |
| [ |
| AC_CHECK_DECLS_ONCE([obstack_printf]) |
| if test $ac_cv_have_decl_obstack_printf = no; then |
| HAVE_DECL_OBSTACK_PRINTF=0 |
| fi |
| ]) |
