Mercurial > gnulib
view m4/fseeko.m4 @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 161070f4cae7 |
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# fseeko.m4 serial 16 dnl Copyright (C) 2007-2013 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. AC_DEFUN([gl_FUNC_FSEEKO], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_STDIN_LARGE_OFFSET]) AC_REQUIRE([gl_SYS_TYPES_H]) AC_REQUIRE([AC_PROG_CC]) dnl Persuade glibc <stdio.h> to declare fseeko(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko], [ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h> ]], [fseeko (stdin, 0, 0);])], [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) ]) AC_CHECK_DECLS_ONCE([fseeko]) if test $ac_cv_have_decl_fseeko = no; then HAVE_DECL_FSEEKO=0 fi if test $gl_cv_func_fseeko = no; then HAVE_FSEEKO=0 else if test $WINDOWS_64_BIT_OFF_T = 1; then REPLACE_FSEEKO=1 fi if test $gl_cv_var_stdin_large_offset = no; then REPLACE_FSEEKO=1 fi m4_ifdef([gl_FUNC_FFLUSH_STDIN], [ gl_FUNC_FFLUSH_STDIN if test $gl_cv_func_fflush_stdin = no; then REPLACE_FSEEKO=1 fi ]) fi ]) dnl Code shared by fseeko and ftello. Determine if large files are supported, dnl but stdin does not start as a large file by default. AC_DEFUN([gl_STDIN_LARGE_OFFSET], [ AC_CACHE_CHECK([whether stdin defaults to large file offsets], [gl_cv_var_stdin_large_offset], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]], [[#if defined __SL64 && defined __SCLE /* cygwin */ /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and it is easier to do a version check than building a runtime test. */ # include <cygwin/version.h> # if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25) choke me # endif #endif]])], [gl_cv_var_stdin_large_offset=yes], [gl_cv_var_stdin_large_offset=no])]) ]) # Prerequisites of lib/fseeko.c. AC_DEFUN([gl_PREREQ_FSEEKO], [ dnl Native Windows has the function _fseeki64. mingw hides it, but mingw64 dnl makes it usable again. AC_CHECK_FUNCS([_fseeki64]) ])