diff options
Diffstat (limited to 'm4/wchar.m4')
| -rw-r--r-- | m4/wchar.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/m4/wchar.m4 b/m4/wchar.m4 new file mode 100644 index 0000000..068f22d --- /dev/null +++ b/m4/wchar.m4 @@ -0,0 +1,29 @@ +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]) +]) |