Mercurial > gnulib
view lib/xmemdup0.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 | 452ab00796c7 |
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/* xmemdup0.c -- copy a block of arbitrary bytes, plus a trailing NUL Copyright (C) 2008-2019 Free Software Foundation, Inc. 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> #include "xmemdup0.h" #include "xalloc.h" #include <string.h> /* Clone an arbitrary block of bytes P of size S, with error checking, and include a terminating NUL byte. P is of type 'void const *', to make it easier to use this with other mem* functions that return 'void *', but since appending a NUL byte only makes sense on bytes, the return type is 'char *'. The terminating NUL makes it safe to use strlen or rawmemchr to check for embedded NUL; it also speeds up algorithms such as escape sequence processing on arbitrary memory, by making it always safe to read the byte after the escape character rather than having to check if each escape character is the last byte in the object. */ char * xmemdup0 (void const *p, size_t s) { char *result = xcharalloc (s + 1); memcpy (result, p, s); result[s] = 0; return result; }