xref: /PHP-7.3/ext/sysvsem/config.m4 (revision 4371945b) 
1dnl config.m4 for extension sysvsem
2
3PHP_ARG_ENABLE(sysvsem,whether to enable System V semaphore support,
4[  --enable-sysvsem        Enable System V semaphore support])
5
6if test "$PHP_SYSVSEM" != "no"; then
7 PHP_NEW_EXTENSION(sysvsem, sysvsem.c, $ext_shared)
8 AC_DEFINE(HAVE_SYSVSEM, 1, [ ])
9 AC_CACHE_CHECK(for union semun,php_cv_semun,
10   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
11#include <sys/types.h>
12#include <sys/ipc.h>
13#include <sys/sem.h>
14   ]], [[union semun x;]])],[
15     php_cv_semun=yes
16   ],[
17     php_cv_semun=no
18   ])
19 )
20 if test "$php_cv_semun" = "yes"; then
21   AC_DEFINE(HAVE_SEMUN, 1, [ ])
22 else
23   AC_DEFINE(HAVE_SEMUN, 0, [ ])
24 fi
25fi
26