dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
-dnl Copyright (C) 2007-2013 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2018 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_h.m4 serial 39
+# wchar_h.m4 serial 42
AC_DEFUN([gl_WCHAR_H],
[
fi
AC_SUBST([HAVE_WINT_T])
+ AC_REQUIRE([gl_TYPE_WINT_T_PREREQ])
+
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([[
wcsrtombs wcsnrtombs wcwidth wmemchr wmemcmp wmemcpy wmemmove wmemset
wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp
wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr
- wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth
+ wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime
])
])
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 'gnu_inline'. See <https://sourceware.org/bugzilla/show_bug.cgi?id=4022>
+ dnl and <https://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],
extern int zero (void);
int main () { return zero(); }
]])])
+ dnl Do not rename the object file from conftest.$ac_objext to
+ dnl conftest1.$ac_objext, as this will cause the link to fail on
+ dnl z/OS when using the XPLINK object format (due to duplicate
+ dnl CSECT names). Instead, temporarily redefine $ac_compile so
+ dnl that the object file has the latter name from the start.
+ save_ac_compile="$ac_compile"
+ ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/`
if AC_TRY_EVAL([ac_compile]); then
- mv conftest.$ac_objext conftest1.$ac_objext
AC_LANG_CONFTEST([
AC_LANG_SOURCE([[#define wcstod renamed_wcstod
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
#include <wchar.h>
int zero (void) { return 0; }
]])])
+ dnl See note above about renaming object files.
+ ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/`
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 $LIBS >&AS_MESSAGE_LOG_FD 2>&1; then
:
else
fi
fi
fi
+ ac_compile="$save_ac_compile"
rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
])
if test $gl_cv_header_wchar_h_correct_inline = no; then
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
+ <https://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.])
GNULIB_WCSSTR=0; AC_SUBST([GNULIB_WCSSTR])
GNULIB_WCSTOK=0; AC_SUBST([GNULIB_WCSTOK])
GNULIB_WCSWIDTH=0; AC_SUBST([GNULIB_WCSWIDTH])
+ GNULIB_WCSFTIME=0; AC_SUBST([GNULIB_WCSFTIME])
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_WCSSTR=1; AC_SUBST([HAVE_WCSSTR])
HAVE_WCSTOK=1; AC_SUBST([HAVE_WCSTOK])
HAVE_WCSWIDTH=1; AC_SUBST([HAVE_WCSWIDTH])
+ HAVE_WCSFTIME=1; AC_SUBST([HAVE_WCSFTIME])
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_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS])
REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH])
REPLACE_WCSWIDTH=0; AC_SUBST([REPLACE_WCSWIDTH])
+ REPLACE_WCSFTIME=0; AC_SUBST([REPLACE_WCSFTIME])
])