| dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. |
| |
| dnl Copyright (C) 2007 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 Written by Eric Blake. |
| |
| # wchar.m4 serial 1 |
| |
| AC_DEFUN([gl_WCHAR_H], |
| [ |
| AC_CACHE_CHECK([whether <wchar.h> is standalone], |
| [gl_cv_header_wchar_h_standalone], |
| [AC_COMPILE_IFELSE([[#include <wchar.h> |
| wchar_t w;]], |
| [gl_cv_header_wchar_h_standalone=yes], |
| [gl_cv_header_wchar_h_standalone=no])]) |
| if test $gl_cv_header_wchar_h_standalone = yes; then |
| WCHAR_H= |
| else |
| gl_ABSOLUTE_HEADER([wchar.h]) |
| ABSOLUTE_WCHAR_H=\"$gl_cv_absolute_wchar_h\" |
| WCHAR_H=wchar.h |
| fi |
| AC_SUBST([ABSOLUTE_WCHAR_H]) |
| AC_SUBST([WCHAR_H]) |
| ]) |
