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author | Anas Nashif <anas.nashif@intel.com> | 2012-10-25 12:29:46 -0700 |
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committer | Anas Nashif <anas.nashif@intel.com> | 2012-10-25 12:29:46 -0700 |
commit | c42b3ab659c294e1c2a0de4b8bcbb4611eb3d005 (patch) | |
tree | 0116a99245903017b6839adc68b3cb2a900455a2 /m4/wctype_h.m4 | |
download | cpio-c42b3ab659c294e1c2a0de4b8bcbb4611eb3d005.tar.gz cpio-c42b3ab659c294e1c2a0de4b8bcbb4611eb3d005.tar.bz2 cpio-c42b3ab659c294e1c2a0de4b8bcbb4611eb3d005.zip |
Imported Upstream version 2.11upstream/2.11upstream
Diffstat (limited to 'm4/wctype_h.m4')
-rw-r--r-- | m4/wctype_h.m4 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/m4/wctype_h.m4 b/m4/wctype_h.m4 new file mode 100644 index 0000000..83daffc --- /dev/null +++ b/m4/wctype_h.m4 @@ -0,0 +1,69 @@ +# wctype_h.m4 serial 5 + +dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. + +dnl Copyright (C) 2006-2010 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_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([iswcntrl]) + if test $ac_cv_func_iswcntrl = yes; then + HAVE_ISWCNTRL=1 + else + HAVE_ISWCNTRL=0 + fi + AC_SUBST([HAVE_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]) + + if test $ac_cv_header_wctype_h = yes; then + if test $ac_cv_func_iswcntrl = yes; then + dnl Linux libc5 has an iswprint function that returns 0 for all arguments. + dnl The other functions are likely broken in the same way. + AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], + [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ + #include <stddef.h> + #include <stdio.h> + #include <time.h> + #include <wchar.h> + #include <wctype.h> + int main () { return iswprint ('x') == 0; }]])], + [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> + #if __GNU_LIBRARY__ == 1 + Linux libc5 i18n is broken. + #endif]], [])], + [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no]) + ]) + ]) + fi + gl_CHECK_NEXT_HEADERS([wctype.h]) + HAVE_WCTYPE_H=1 + else + HAVE_WCTYPE_H=0 + fi + AC_SUBST([HAVE_WCTYPE_H]) + + if test "$gl_cv_func_iswcntrl_works" = no; then + REPLACE_ISWCNTRL=1 + else + REPLACE_ISWCNTRL=0 + fi + AC_SUBST([REPLACE_ISWCNTRL]) +]) |