diff options
Diffstat (limited to 'm4/wctype.m4')
| -rw-r--r-- | m4/wctype.m4 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/m4/wctype.m4 b/m4/wctype.m4 new file mode 100644 index 0000000..62994c6 --- /dev/null +++ b/m4/wctype.m4 @@ -0,0 +1,41 @@ +dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. + +dnl Copyright (C) 2006, 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 Paul Eggert. + +AC_DEFUN([gl_WCTYPE_H], +[ + AC_CHECK_FUNCS_ONCE([iswcntrl]) + AC_CHECK_HEADERS_ONCE([wctype.h]) + AC_REQUIRE([AC_C_INLINE]) + + AC_REQUIRE([gt_TYPE_WINT_T]) + if test $gt_cv_c_wint_t = yes; then + HAVE_WINT_T=1 + else + HAVE_WINT_T=0 + fi + AC_SUBST([HAVE_WINT_T]) + + WCTYPE_H=wctype.h + if test $ac_cv_header_wctype_h = yes; then + if test "$ac_cv_func_iswcntrl" = yes; then + WCTYPE_H= + fi + dnl Compute ABSOLUTE_WCTYPE_H even if WCTYPE_H is empty, + dnl for the benefit of builds from non-distclean directories. + gl_ABSOLUTE_HEADER([wctype.h]) + ABSOLUTE_WCTYPE_H=\"$gl_cv_absolute_wctype_h\" + HAVE_WCTYPE_H=1 + else + ABSOLUTE_WCTYPE_H=\"no/such/file/wctype.h\" + HAVE_WCTYPE_H=0 + fi + AC_SUBST([ABSOLUTE_WCTYPE_H]) + AC_SUBST([HAVE_WCTYPE_H]) + AC_SUBST([WCTYPE_H]) +]) |