Mercurial > hg > octave-kai > gnulib-hg
comparison m4/wctype_h.m4 @ 12914:7031f1066ded
More consistent naming of *.m4 files.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sat, 06 Mar 2010 19:08:20 +0100 |
| parents | |
| children | dbe2adea8676 |
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| 12913:6a1b2eb4c331 | 12914:7031f1066ded |
|---|---|
| 1 # wctype_h.m4 serial 4 | |
| 2 | |
| 3 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. | |
| 4 | |
| 5 dnl Copyright (C) 2006-2010 Free Software Foundation, Inc. | |
| 6 dnl This file is free software; the Free Software Foundation | |
| 7 dnl gives unlimited permission to copy and/or distribute it, | |
| 8 dnl with or without modifications, as long as this notice is preserved. | |
| 9 | |
| 10 dnl Written by Paul Eggert. | |
| 11 | |
| 12 AC_DEFUN([gl_WCTYPE_H], | |
| 13 [ | |
| 14 AC_REQUIRE([AC_PROG_CC]) | |
| 15 AC_REQUIRE([AC_CANONICAL_HOST]) | |
| 16 AC_CHECK_FUNCS_ONCE([iswcntrl]) | |
| 17 if test $ac_cv_func_iswcntrl = yes; then | |
| 18 HAVE_ISWCNTRL=1 | |
| 19 else | |
| 20 HAVE_ISWCNTRL=0 | |
| 21 fi | |
| 22 AC_SUBST([HAVE_ISWCNTRL]) | |
| 23 AC_CHECK_HEADERS_ONCE([wctype.h]) | |
| 24 AC_REQUIRE([AC_C_INLINE]) | |
| 25 | |
| 26 AC_REQUIRE([gt_TYPE_WINT_T]) | |
| 27 if test $gt_cv_c_wint_t = yes; then | |
| 28 HAVE_WINT_T=1 | |
| 29 else | |
| 30 HAVE_WINT_T=0 | |
| 31 fi | |
| 32 AC_SUBST([HAVE_WINT_T]) | |
| 33 | |
| 34 WCTYPE_H=wctype.h | |
| 35 if test $ac_cv_header_wctype_h = yes; then | |
| 36 if test $ac_cv_func_iswcntrl = yes; then | |
| 37 dnl Linux libc5 has an iswprint function that returns 0 for all arguments. | |
| 38 dnl The other functions are likely broken in the same way. | |
| 39 AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], | |
| 40 [ | |
| 41 AC_RUN_IFELSE([AC_LANG_SOURCE([[ | |
| 42 #include <stddef.h> | |
| 43 #include <stdio.h> | |
| 44 #include <time.h> | |
| 45 #include <wchar.h> | |
| 46 #include <wctype.h> | |
| 47 int main () { return iswprint ('x') == 0; }]])], | |
| 48 [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], | |
| 49 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> | |
| 50 #if __GNU_LIBRARY__ == 1 | |
| 51 Linux libc5 i18n is broken. | |
| 52 #endif]], [])], | |
| 53 [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no]) | |
| 54 ]) | |
| 55 ]) | |
| 56 if test $gl_cv_func_iswcntrl_works = yes; then | |
| 57 case "$host_os" in | |
| 58 mingw*) | |
| 59 dnl On mingw, towlower and towupper return random high 16 bits. | |
| 60 ;; | |
| 61 *) | |
| 62 dnl iswcntrl works. towlower and towupper work as well. | |
| 63 WCTYPE_H= | |
| 64 ;; | |
| 65 esac | |
| 66 fi | |
| 67 fi | |
| 68 dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty, | |
| 69 dnl for the benefit of builds from non-distclean directories. | |
| 70 gl_CHECK_NEXT_HEADERS([wctype.h]) | |
| 71 HAVE_WCTYPE_H=1 | |
| 72 else | |
| 73 HAVE_WCTYPE_H=0 | |
| 74 fi | |
| 75 AC_SUBST([HAVE_WCTYPE_H]) | |
| 76 AC_SUBST([WCTYPE_H]) | |
| 77 | |
| 78 if test "$gl_cv_func_iswcntrl_works" = no; then | |
| 79 REPLACE_ISWCNTRL=1 | |
| 80 else | |
| 81 REPLACE_ISWCNTRL=0 | |
| 82 fi | |
| 83 AC_SUBST([REPLACE_ISWCNTRL]) | |
| 84 ]) |