diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 40f3c093f1a..9ace6250293 100644 --- a/configure.in +++ b/configure.in @@ -1939,17 +1939,30 @@ AC_SUBST(PG_CRC32C_OBJS) # Select semaphore implementation type. if test "$PORTNAME" != "win32"; then + if test x"$PREFERRED_SEMAPHORES" = x"NAMED_POSIX" ; then + # Need sem_open for this + AC_SEARCH_LIBS(sem_open, [rt pthread], [USE_NAMED_POSIX_SEMAPHORES=1]) + fi + if test x"$PREFERRED_SEMAPHORES" = x"UNNAMED_POSIX" ; then + # Need sem_init for this + AC_SEARCH_LIBS(sem_init, [rt pthread], [USE_UNNAMED_POSIX_SEMAPHORES=1]) + fi + AC_MSG_CHECKING([which semaphore API to use]) if test x"$USE_NAMED_POSIX_SEMAPHORES" = x"1" ; then AC_DEFINE(USE_NAMED_POSIX_SEMAPHORES, 1, [Define to select named POSIX semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" + sematype="named POSIX" else if test x"$USE_UNNAMED_POSIX_SEMAPHORES" = x"1" ; then AC_DEFINE(USE_UNNAMED_POSIX_SEMAPHORES, 1, [Define to select unnamed POSIX semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/posix_sema.c" + sematype="unnamed POSIX" else AC_DEFINE(USE_SYSV_SEMAPHORES, 1, [Define to select SysV-style semaphores.]) SEMA_IMPLEMENTATION="src/backend/port/sysv_sema.c" + sematype="System V" fi + AC_MSG_RESULT([$sematype]) fi else AC_DEFINE(USE_WIN32_SEMAPHORES, 1, [Define to select Win32-style semaphores.]) |