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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.
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
# dup.m4 serial 5
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dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_DUP],
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[
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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m4_ifdef([gl_MSVC_INVAL], [
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AC_REQUIRE([gl_MSVC_INVAL])
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if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
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REPLACE_DUP=1
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fi
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])
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dnl Replace dup() for supporting the gnulib-defined fchdir() function,
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dnl to keep fchdir's bookkeeping up-to-date.
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m4_ifdef([gl_FUNC_FCHDIR], [
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gl_TEST_FCHDIR
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if test $HAVE_FCHDIR = 0; then
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REPLACE_DUP=1
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fi
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])
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AC_CACHE_CHECK([whether dup works], [gl_cv_func_dup_works],
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[AC_RUN_IFELSE(
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[AC_LANG_PROGRAM([[#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>]],
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[[/* On OS/2 kLIBC, dup does not work on a directory fd. */
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int fd = open (".", O_RDONLY);
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return fd < 0 ? 1 : dup (fd) < 0 ? 2 : 0;
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]])
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],
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[gl_cv_func_dup_works=yes],
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[gl_cv_func_dup_works=no],
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[gl_cv_func_dup_works='guessing yes'])
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])
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case "$gl_cv_func_dup_works" in
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*yes) ;;
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*)
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REPLACE_DUP=1
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;;
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esac
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])
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# Prerequisites of lib/dup.c.
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AC_DEFUN([gl_PREREQ_DUP], [:])
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