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Files
gnulib/m4/fdopen.m4
Bruno Haible 03c3f38b55 Implement a way to opt out from MSVC support.
This is useful for Emacs.

* modules/msvc-nothrow (configure.ac): Invoke gl_MODULE_INDICATOR.
* lib/accept4.c: Include <io.h> as an alternative to msvc-nothrow.h.
* lib/error.c: Likewise.
* lib/fcntl.c: Likewise.
* lib/flock.c: Likewise.
* lib/fstat.c: Likewise.
* lib/fsync.c: Likewise.
* lib/ioctl.c: Likewise.
* lib/isapipe.c: Likewise.
* lib/lseek.c: Likewise.
* lib/nonblocking.c: Likewise.
* lib/poll.c: Likewise.
* lib/select.c: Likewise.
* lib/sockets.h: Likewise.
* lib/sockets.c: Likewise.
* lib/stdio-read.c: Likewise.
* lib/stdio-write.c: Likewise.
* lib/utimens.c: Likewise.
* lib/w32sock.h: Likewise.
* lib/w32spawn.h: Likewise.
* tests/test-cloexec.c: Likewise.
* tests/test-dup-safer.c: Likewise.
* tests/test-dup2.c: Likewise.
* tests/test-dup3.c: Likewise.
* tests/test-fcntl.c: Likewise.
* tests/test-pipe.c: Likewise.
* tests/test-pipe2.c: Likewise.
* lib/ftruncate.c: Likewise.
(chsize_nothrow): Renamed from chsize.
* lib/msvc-nothrow.c: Don't include msvc-inval.h if
HAVE_MSVC_INVALID_PARAMETER_HANDLER is not defined.
* lib/close.c: Likewise.
* lib/dup.c: Likewise.
* lib/fclose.c: Likewise.
* lib/raise.c: Likewise.
* tests/test-fgetc.c: Likewise.
* tests/test-fputc.c: Likewise.
* tests/test-fread.c: Likewise.
* tests/test-fwrite.c: Likewise.
* lib/getdtablesize.c: Likewise.
(_setmaxstdio_nothrow): Renamed from _setmaxstdio.
* lib/isatty.c: Don't include msvc-inval.h if
HAVE_MSVC_INVALID_PARAMETER_HANDLER is not defined.
Include <io.h> as an alternative to msvc-nothrow.h.
* lib/read.c: Likewise.
* lib/write.c: Likewise.
* lib/dup2.c: Likewise.
(dup2_nothrow): New function.
(ms_windows_dup2): Use it.
* m4/close.m4 (gl_FUNC_CLOSE): Invoke gl_MSVC_INVAL and test
HAVE_MSVC_INVALID_PARAMETER_HANDLER only if gl_MSVC_INVAL is defined.
* m4/dup.m4 (gl_FUNC_DUP): Likewise.
* m4/fdopen.m4 (gl_FUNC_FDOPEN): Likewise.
* m4/raise.m4 (gl_FUNC_RAISE): Likewise.
* m4/read.m4 (gl_FUNC_READ): Likewise.
* m4/write.m4 (gl_FUNC_WRITE): Likewise.
* doc/windows-without-msvc.texi: New file.
* doc/gnulib.texi (Native Windows Support without MSVC Support): New
section.
2017-05-10 22:18:34 +02:00

51 lines
1.4 KiB
Plaintext

# fdopen.m4 serial 4
dnl Copyright (C) 2011-2017 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_FDOPEN],
[
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
m4_ifdef([gl_MSVC_INVAL], [
AC_REQUIRE([gl_MSVC_INVAL])
if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
REPLACE_FDOPEN=1
fi
])
if test $REPLACE_FDOPEN = 0; then
dnl Test whether fdopen() sets errno when it fails due to a bad fd argument.
AC_CACHE_CHECK([whether fdopen sets errno], [gl_cv_func_fdopen_works],
[
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <stdio.h>
#include <errno.h>
int
main (void)
{
FILE *fp;
errno = 0;
fp = fdopen (-1, "r");
if (fp == NULL && errno == 0)
return 1;
return 0;
}]])],
[gl_cv_func_fdopen_works=yes],
[gl_cv_func_fdopen_works=no],
[case "$host_os" in
mingw*) gl_cv_func_fdopen_works="guessing no" ;;
*) gl_cv_func_fdopen_works="guessing yes" ;;
esac
])
])
case "$gl_cv_func_fdopen_works" in
*no) REPLACE_FDOPEN=1 ;;
esac
fi
])
dnl Prerequisites of lib/fdopen.c.
AC_DEFUN([gl_PREREQ_FDOPEN], [])