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Add HAVE_POSIX_SHM and HAVE_POSIX_SEM

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This commit is contained in:
Francois Kritzinger 2024-01-17 16:02:16 +02:00
parent 198f70bab2
commit 6a38159c38
2 changed files with 49 additions and 0 deletions
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24
libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_SEM.h Normal file
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// HAVE_POSIX_SEM : BUILD2_AUTOCONF_LIBC_VERSION
/* If HAVE_POSIX_SEM is defined then all of the POSIX semaphore system calls
* such as sem_open(), sem_close(), sem_unlink(), etc. are available.
*/
#ifndef BUILD2_AUTOCONF_LIBC_VERSION
# error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
#endif
#undef HAVE_POSIX_SEM
/* Since glibc 2.3.3 (when NPTL was added), FreeBSD 3.0, OpenBSD 3.1 (based on
* checking the online manpages by version), and NetBSD 2.0.
*
* Available on all versions of macOS.
*/
#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 4) || \
BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0) || \
BUILD2_AUTOCONF_OPENBSD_PREREQ(200206) || \
BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0) || \
defined(BUILD2_AUTOCONF_MACOS)
# define HAVE_POSIX_SEM 1
#endif

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libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_SHM.h Normal file
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// HAVE_POSIX_SHM : BUILD2_AUTOCONF_LIBC_VERSION
/* If HAVE_POSIX_SHM is defined then both shm_open() and shm_unlink() are
* available.
*/
#ifndef BUILD2_AUTOCONF_LIBC_VERSION
# error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
#endif
#undef HAVE_POSIX_SHM
/* Since glibc 2.2, FreeBSD 4.3, and NetBSD 7.0.
*
* Available on all versions of macOS.
*
* Not available on OpenBSD (security concerns).
*
*/
#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 2) || \
BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 3) || \
BUILD2_AUTOCONF_NETBSD_PREREQ(7, 0) || \
defined(BUILD2_AUTOCONF_MACOS)
# define HAVE_POSIX_SHM 1
#endif