1 # vsnprintf.m4 serial 5
2 dnl Copyright (C) 2002-2004, 2007-2010 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_VSNPRINTF],
8 [
9 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
10 gl_cv_func_vsnprintf_usable=no
11 AC_CHECK_FUNCS([vsnprintf])
12 if test $ac_cv_func_vsnprintf = yes; then
13 gl_SNPRINTF_SIZE1
14 case "$gl_cv_func_snprintf_size1" in
15 *yes)
16 gl_cv_func_vsnprintf_usable=yes
17 ;;
18 esac
19 fi
20 if test $gl_cv_func_vsnprintf_usable = no; then
21 gl_REPLACE_VSNPRINTF
22 fi
23 AC_CHECK_DECLS_ONCE([vsnprintf])
24 if test $ac_cv_have_decl_vsnprintf = no; then
25 HAVE_DECL_VSNPRINTF=0
26 fi
27 ])
29 AC_DEFUN([gl_REPLACE_VSNPRINTF],
30 [
31 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
32 AC_LIBOBJ([vsnprintf])
33 if test $ac_cv_func_vsnprintf = yes; then
34 REPLACE_VSNPRINTF=1
35 fi
36 gl_PREREQ_VSNPRINTF
37 ])
39 # Prerequisites of lib/vsnprintf.c.
40 AC_DEFUN([gl_PREREQ_VSNPRINTF], [:])