+++ /dev/null
-dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
-
-dnl Copyright (C) 2007-2010 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 Eric Blake.
-
-# wchar.m4 serial 30
-
-AC_DEFUN([gl_WCHAR_H],
-[
- AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
- AC_REQUIRE([gl_WCHAR_H_INLINE_OK])
- dnl Prepare for creating substitute <wchar.h>.
- dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
- dnl character support).
- dnl <wchar.h> is always overridden, because of GNULIB_POSIXCHECK.
- AC_CHECK_HEADERS_ONCE([wchar.h])
- gl_CHECK_NEXT_HEADERS([wchar.h])
- if test $ac_cv_header_wchar_h = yes; then
- HAVE_WCHAR_H=1
- else
- HAVE_WCHAR_H=0
- fi
- AC_SUBST([HAVE_WCHAR_H])
-
- AC_REQUIRE([gt_TYPE_WINT_T])
- if test $gt_cv_c_wint_t = yes; then
- HAVE_WINT_T=1
- else
- HAVE_WINT_T=0
- fi
- AC_SUBST([HAVE_WINT_T])
-])
-
-dnl Check whether <wchar.h> is usable at all.
-AC_DEFUN([gl_WCHAR_H_INLINE_OK],
-[
- dnl Test whether <wchar.h> suffers due to the transition from '__inline' to
- dnl 'gnu_inline'. See <http://sourceware.org/bugzilla/show_bug.cgi?id=4022>
- dnl and <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary,
- dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and
- dnl the option -std=c99 or -std=gnu99, leads to a broken <wchar.h>.
- AC_CACHE_CHECK([whether <wchar.h> uses 'inline' correctly],
- [gl_cv_header_wchar_h_correct_inline],
- [gl_cv_header_wchar_h_correct_inline=yes
- AC_LANG_CONFTEST([
- AC_LANG_SOURCE([[#define wcstod renamed_wcstod
-#include <wchar.h>
-extern int zero (void);
-int main () { return zero(); }
-]])])
- if AC_TRY_EVAL([ac_compile]); then
- mv conftest.$ac_objext conftest1.$ac_objext
- AC_LANG_CONFTEST([
- AC_LANG_SOURCE([[#define wcstod renamed_wcstod
-#include <wchar.h>
-int zero (void) { return 0; }
-]])])
- if AC_TRY_EVAL([ac_compile]); then
- mv conftest.$ac_objext conftest2.$ac_objext
- if $CC -o conftest$ac_exeext $CFLAGS $LDFLAGS conftest1.$ac_objext conftest2.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD 2>&1; then
- :
- else
- gl_cv_header_wchar_h_correct_inline=no
- fi
- fi
- fi
- rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
- ])
- if test $gl_cv_header_wchar_h_correct_inline = no; then
- AC_MSG_ERROR([<wchar.h> cannot be used with this compiler ($CC $CFLAGS $CPPFLAGS).
-This is a known interoperability problem of glibc <= 2.5 with gcc >= 4.3 in
-C99 mode. You have four options:
- - Add the flag -fgnu89-inline to CC and reconfigure, or
- - Fix your include files, using parts of
- <http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or
- - Use a gcc version older than 4.3, or
- - Don't use the flags -std=c99 or -std=gnu99.
-Configuration aborted.])
- fi
-])
-
-dnl Unconditionally enables the replacement of <wchar.h>.
-AC_DEFUN([gl_REPLACE_WCHAR_H],
-[
- dnl This is a no-op, because <wchar.h> is always overridden.
- :
-])
-
-AC_DEFUN([gl_WCHAR_MODULE_INDICATOR],
-[
- dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
- AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
- GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
-])
-
-AC_DEFUN([gl_WCHAR_H_DEFAULTS],
-[
- GNULIB_BTOWC=0; AC_SUBST([GNULIB_BTOWC])
- GNULIB_WCTOB=0; AC_SUBST([GNULIB_WCTOB])
- GNULIB_MBSINIT=0; AC_SUBST([GNULIB_MBSINIT])
- GNULIB_MBRTOWC=0; AC_SUBST([GNULIB_MBRTOWC])
- GNULIB_MBRLEN=0; AC_SUBST([GNULIB_MBRLEN])
- GNULIB_MBSRTOWCS=0; AC_SUBST([GNULIB_MBSRTOWCS])
- GNULIB_MBSNRTOWCS=0; AC_SUBST([GNULIB_MBSNRTOWCS])
- GNULIB_WCRTOMB=0; AC_SUBST([GNULIB_WCRTOMB])
- GNULIB_WCSRTOMBS=0; AC_SUBST([GNULIB_WCSRTOMBS])
- GNULIB_WCSNRTOMBS=0; AC_SUBST([GNULIB_WCSNRTOMBS])
- GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH])
- dnl Assume proper GNU behavior unless another module says otherwise.
- HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC])
- HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT])
- HAVE_MBRTOWC=1; AC_SUBST([HAVE_MBRTOWC])
- HAVE_MBRLEN=1; AC_SUBST([HAVE_MBRLEN])
- HAVE_MBSRTOWCS=1; AC_SUBST([HAVE_MBSRTOWCS])
- HAVE_MBSNRTOWCS=1; AC_SUBST([HAVE_MBSNRTOWCS])
- HAVE_WCRTOMB=1; AC_SUBST([HAVE_WCRTOMB])
- HAVE_WCSRTOMBS=1; AC_SUBST([HAVE_WCSRTOMBS])
- HAVE_WCSNRTOMBS=1; AC_SUBST([HAVE_WCSNRTOMBS])
- HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB])
- HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH])
- REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T])
- REPLACE_BTOWC=0; AC_SUBST([REPLACE_BTOWC])
- REPLACE_WCTOB=0; AC_SUBST([REPLACE_WCTOB])
- REPLACE_MBSINIT=0; AC_SUBST([REPLACE_MBSINIT])
- REPLACE_MBRTOWC=0; AC_SUBST([REPLACE_MBRTOWC])
- REPLACE_MBRLEN=0; AC_SUBST([REPLACE_MBRLEN])
- REPLACE_MBSRTOWCS=0; AC_SUBST([REPLACE_MBSRTOWCS])
- REPLACE_MBSNRTOWCS=0; AC_SUBST([REPLACE_MBSNRTOWCS])
- REPLACE_WCRTOMB=0; AC_SUBST([REPLACE_WCRTOMB])
- REPLACE_WCSRTOMBS=0; AC_SUBST([REPLACE_WCSRTOMBS])
- REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS])
- REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH])
-])
projects / debian / gzip / blobdiff