binutils-gdb/gnulib/import/m4/fcntl_h.m4
Paul E. Murphy 9c9d63b15a gnulib: update to 776af40e0
This fixes PR27184, a failure to compile gdb due to
cdefs.h being out of sync with glibc on ppc64le targets
which are compiled with -mabi=ieeelongdouble and glibc
2.32.

Likewise, update usage of _GL_ATTRIBUTE_FORMAT_PRINTF to
_GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD.

Likewise, disable newly added rpl_free gnulib api in
gdbserver support libraries.

Likewise, undefine read/write macros before redefining them
on mingw targets.

Likewise, wrap C++ usage of free with GNULIB_NAMESPACE namespace
as needed.

Change-Id: I86517613c0d8ac8f5ea45bbc4ebe2b54a3aef29f
2021-02-05 13:35:20 -05:00

55 lines
2 KiB
Text

# serial 17
# Configure fcntl.h.
dnl Copyright (C) 2006-2007, 2009-2021 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 Paul Eggert.
AC_DEFUN([gl_FCNTL_H],
[
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
AC_REQUIRE([gl_FCNTL_O_FLAGS])
gl_NEXT_HEADERS([fcntl.h])
dnl Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Ensure the type mode_t gets defined.
AC_REQUIRE([AC_TYPE_MODE_T])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use, if it is not common
dnl enough to be declared everywhere.
gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
]], [fcntl openat])
])
AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_FCNTL_H_DEFAULTS],
[
GNULIB_CREAT=0; AC_SUBST([GNULIB_CREAT])
GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL])
GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING])
GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN])
GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT])
dnl Support Microsoft deprecated alias function names by default.
GNULIB_MDA_CREAT=1; AC_SUBST([GNULIB_MDA_CREAT])
GNULIB_MDA_OPEN=1; AC_SUBST([GNULIB_MDA_OPEN])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL])
HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT])
REPLACE_CREAT=0; AC_SUBST([REPLACE_CREAT])
REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL])
REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
])