diff options
Diffstat (limited to 'gl/m4/wchar.m4')
-rw-r--r-- | gl/m4/wchar.m4 | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/gl/m4/wchar.m4 b/gl/m4/wchar.m4 deleted file mode 100644 index e81485d01e..0000000000 --- a/gl/m4/wchar.m4 +++ /dev/null @@ -1,150 +0,0 @@ -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 31 - -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 $gt_cv_c_wint_t = yes; then - HAVE_WINT_T=1 - else - HAVE_WINT_T=0 - fi - AC_SUBST([HAVE_WINT_T]) - - dnl Check for declarations of anything we want to poison if the - dnl corresponding gnulib module is not in use. - gl_WARN_ON_USE_PREPARE([[ -/* Some systems require additional headers. */ -#ifndef __GLIBC__ -# include <stddef.h> -# include <stdio.h> -# include <time.h> -#endif -#include <wchar.h> - ]], [btowc wctob mbsinit mbrtowc mbrlen mbsrtowcs mbsnrtowcs wcrtomb - wcsrtombs wcsnrtombs wcwidth]) -]) - -dnl Check whether <wchar.h> is usable at all. -AC_DEFUN([gl_WCHAR_H_INLINE_OK], -[ - dnl Test whether <wchar.h> suffers due to the transition from '__inline' to - dnl 'gnu_inline'. See <http://sourceware.org/bugzilla/show_bug.cgi?id=4022> - dnl and <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary, - dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and - dnl the option -std=c99 or -std=gnu99, leads to a broken <wchar.h>. - AC_CACHE_CHECK([whether <wchar.h> uses 'inline' correctly], - [gl_cv_header_wchar_h_correct_inline], - [gl_cv_header_wchar_h_correct_inline=yes - AC_LANG_CONFTEST([ - AC_LANG_SOURCE([[#define wcstod renamed_wcstod -#include <wchar.h> -extern int zero (void); -int main () { return zero(); } -]])]) - if AC_TRY_EVAL([ac_compile]); then - mv conftest.$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]) -]) |