Mercurial > gnulib
view lib/spawn_faction_addclose.c @ 40206:770a5696761e
relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
This approach supports relocatable installation of shared libraries
which depend on other shared libraries from the same package.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
wrapper around the original LIBTOOL.
* build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
token '@loader_path' instead of '$ORIGIN'.
* build-aux/libtool-reloc: New file.
* modules/relocatable-prog (Files): Add it.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes. Document the need to set the *_LDFLAGS of libraries.
RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
Makefile.am, not in configure.ac.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:09 +0100 |
parents | b06060465f09 |
children |
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/* Copyright (C) 2000, 2009-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <spawn.h> #include <errno.h> #include <unistd.h> #if !_LIBC # define __sysconf(open_max) getdtablesize () #endif #if REPLACE_POSIX_SPAWN # include "spawn_int.h" #endif /* Add an action to FILE-ACTIONS which tells the implementation to call 'close' for the given file descriptor during the 'spawn' call. */ int posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *file_actions, int fd) #undef posix_spawn_file_actions_addclose { int maxfd = __sysconf (_SC_OPEN_MAX); /* Test for the validity of the file descriptor. */ if (fd < 0 || fd >= maxfd) return EBADF; #if !REPLACE_POSIX_SPAWN return posix_spawn_file_actions_addclose (file_actions, fd); #else /* Allocate more memory if needed. */ if (file_actions->_used == file_actions->_allocated && __posix_spawn_file_actions_realloc (file_actions) != 0) /* This can only mean we ran out of memory. */ return ENOMEM; { struct __spawn_action *rec; /* Add the new value. */ rec = &file_actions->_actions[file_actions->_used]; rec->tag = spawn_do_close; rec->action.open_action.fd = fd; /* Account for the new entry. */ ++file_actions->_used; return 0; } #endif }