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author | Hans Petter Selasky <hselasky@FreeBSD.org> | 2018-05-18 12:21:19 +0000 |
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committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2018-05-18 12:21:19 +0000 |
commit | d109bf9e4b609b5a0626b433e56db4a47dc530bb (patch) | |
tree | 48bc2a4852c42b213448a7e9d93f2e5eb6348ea0 /ftmacros.h | |
parent | 2369c04eb959fda4140b71f1c78798251bf43b62 (diff) | |
download | src-d109bf9e4b609b5a0626b433e56db4a47dc530bb.tar.gz src-d109bf9e4b609b5a0626b433e56db4a47dc530bb.zip |
Notes
Diffstat (limited to 'ftmacros.h')
-rw-r--r-- | ftmacros.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/ftmacros.h b/ftmacros.h new file mode 100644 index 000000000000..de8da98e38b6 --- /dev/null +++ b/ftmacros.h @@ -0,0 +1,115 @@ +/* + * Copyright (c) 1994, 1995, 1996 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Computer Systems + * Engineering Group at Lawrence Berkeley Laboratory. + * 4. Neither the name of the University nor of the Laboratory may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef ftmacros_h +#define ftmacros_h + +/* + * Define some feature test macros to make sure that everything we want + * to be declared gets declared. + * + * On some UN*Xes we need to force strtok_r() to be declared. + * We do *NOT* want to define _POSIX_C_SOURCE, as that tends + * to make non-POSIX APIs that we use unavailable. + * XXX - is there no portable way to say "please pollute the + * namespace to the maximum extent possible"? + */ +#if defined(sun) || defined(__sun) + #define __EXTENSIONS__ + + /* + * We also need to define _XPG4_2 in order to get + * the Single UNIX Specification version of + * recvmsg(). + */ + #define _XPG4_2 +#elif defined(_hpux) || defined(hpux) || defined(__hpux) + #define _REENTRANT + + /* + * We need this to get the versions of socket functions that + * use socklen_t. Define it only if it's not already defined, + * so we don't get redefiniton warnings. + */ + #ifndef _XOPEN_SOURCE_EXTENDED + #define _XOPEN_SOURCE_EXTENDED + #endif + + /* + * XXX - the list of PA-RISC options for GCC makes it sound as if + * building code that uses a particular vintage of UNIX API/ABI + * is complicated: + * + * https://gcc.gnu.org/onlinedocs/gcc/HPPA-Options.html + * + * See the description of the -munix flag. + * + * We probably want libpcap to work with programs built for any + * UN*X standard. I'm not sure whether that's possible and, if + * it is, what sort of stuff it'd have to do. + * + * It might also be a requirement that we build with a special + * flag to allow the library to be used with threaded code, at + * least with HP's C compiler; hopefully doing so won't make it + * *not* work with *un*-threaded code. + */ +#elif defined(__linux__) || defined(linux) || defined(__linux) + /* + * We can't turn _GNU_SOURCE on because some versions of GNU Libc + * will give the GNU version of strerror_r(), which returns a + * string pointer and doesn't necessarily fill in the buffer, + * rather than the standard version of strerror_r(), which + * returns 0 or an errno and always fills in the buffer. We + * require both of the latter behaviors. + * + * So we try turning everything else on that we can. This includes + * defining _XOPEN_SOURCE as 600, because we want to force crypt() + * to be declared on systems that use GNU libc, such as most Linux + * distributions. + */ + #define _POSIX_C_SOURCE 200809L + #define _XOPEN_SOURCE 600 + + /* + * We turn on both _DEFAULT_SOURCE and _BSD_SOURCE to try to get + * the BSD u_XXX types, such as u_int and u_short, defined. We + * define _DEFAULT_SOURCE first, so that newer versions of GNU libc + * don't whine about _BSD_SOURCE being deprecated; we still have + * to define _BSD_SOURCE to handle older versions of GNU libc that + * don't support _DEFAULT_SOURCE. + */ + #define _DEFAULT_SOURCE + #define _BSD_SOURCE +#endif + +#endif |