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00001 /******************************************************************************* 00002 * Copyright (C) 2005, Quest Software, Inc. All rights reserved. 00003 * Copyright (C) 2006, Novell, Inc. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * 00008 * * Redistributions of source code must retain the above copyright notice, 00009 * this list of conditions and the following disclaimer. 00010 * * Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * * Neither the name of 00014 * Quest Software, Inc., 00015 * nor Novell, Inc., 00016 * nor the names of its contributors or employees may be used to 00017 * endorse or promote products derived from this software without 00018 * specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00030 * POSSIBILITY OF SUCH DAMAGE. 00031 *******************************************************************************/ 00032 00033 00034 #ifndef BLOCXX_ENVIRON_HPP_INCLUDE_GUARD_ 00035 #define BLOCXX_ENVIRON_HPP_INCLUDE_GUARD_ 00036 00042 #include "blocxx/BLOCXX_config.h" 00043 00044 #if defined(BLOCXX_DARWIN) 00045 // On MacOSX, environ is not defined in shared libraries. It is only provided 00046 // for executables. Since the linker must resolve all symbols at link time, 00047 // the normal extern declaration of environ won't work. As a substitute, we 00048 // need to use this: 00049 #include <crt_externs.h> 00050 #define environ (*_NSGetEnviron()) 00051 00052 // For more details on the subject, follow one of these links: 00053 // http://lists.gnu.org/archive/html/bug-guile/2004-01/msg00013.html 00054 // http://lists.apple.com/archives/darwin-dev/2005/Mar/msg00132.html 00055 // http://www.metapkg.org/wiki/15 (under the linking problems) 00056 00057 #else /* !DARWIN */ 00058 // according to man environ: 00059 // This variable must be declared in the user program, but is 00060 // declared in the header file unistd.h in case the header files came from 00061 // libc4 or libc5, and in case they came from glibc and _GNU_SOURCE was 00062 // defined. 00063 BLOCXX_IMPORT extern char** environ; 00064 #endif /* DARWIN */ 00065 00066 #endif /* INCLUDE_GUARD */