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dnl Functions for pthread
dnl
dnl Version: 20240513
dnl Function to detect if pthread is available
AC_DEFUN([AX_PTHREAD_CHECK_LIB],
[AS_IF(
[test "x$ac_cv_enable_shared_libs" = xno || test "x$ac_cv_with_pthread" = xno],
[ac_cv_pthread=no],
[ac_cv_pthread=check
dnl Check if parameters were provided
dnl For both --with-pthread which returns "yes" and --with-pthread= which returns ""
dnl treat them as auto-detection.
AS_IF(
[test "x$ac_cv_with_pthread" != x && test "x$ac_cv_with_pthread" != xauto-detect && test "x$ac_cv_with_pthread" != xyes],
[AX_CHECK_LIB_DIRECTORY_EXISTS([pthread])])
])
AS_IF(
[test "x$ac_cv_pthread" = xcheck],
[dnl Check for headers
AC_CHECK_HEADERS([pthread.h])
AS_IF(
[test "x$ac_cv_header_pthread_h" = xno],
[ac_cv_pthread=no],
[ac_cv_pthread=yes
AX_CHECK_LIB_FUNCTIONS(
[pthread],
[pthread],
[[pthread_create],
[pthread_exit],
[pthread_join],
[pthread_cond_init],
[pthread_cond_destroy],
[pthread_cond_broadcast],
[pthread_cond_signal],
[pthread_cond_wait],
[pthread_mutex_init],
[pthread_mutex_destroy],
[pthread_mutex_lock],
[pthread_mutex_trylock],
[pthread_mutex_unlock],
[pthread_rwlock_init],
[pthread_rwlock_destroy],
[pthread_rwlock_rdlock],
[pthread_rwlock_wrlock],
[pthread_rwlock_unlock]])
ac_cv_pthread_LIBADD="-lpthread"
])
AX_CHECK_LIB_DIRECTORY_MSG_ON_FAILURE([pthread])
])
AS_IF(
[test "x$ac_cv_pthread" = xpthread],
[AC_DEFINE(
[HAVE_PTHREAD],
[1],
[Define to 1 if you have the 'pthread' library (-lpthread).])
])
AS_IF(
[test "x$ac_cv_pthread" != xno],
[AC_SUBST(
[HAVE_PTHREAD],
[1]) ],
[AC_SUBST(
[HAVE_PTHREAD],
[0])
])
])
dnl Function to detect how to enable pthread
AC_DEFUN([AX_PTHREAD_CHECK_ENABLE],
[AX_COMMON_ARG_WITH(
[pthread],
[pthread],
[search for pthread in includedir and libdir or in the specified DIR, or no if not to use pthread],
[auto-detect],
[DIR])
dnl Check for a shared library version
AX_PTHREAD_CHECK_LIB
AS_IF(
[test "x$ac_cv_pthread_CPPFLAGS" != "x"],
[AC_SUBST(
[PTHREAD_CPPFLAGS],
[$ac_cv_pthread_CPPFLAGS])
])
AS_IF(
[test "x$ac_cv_pthread_LIBADD" != "x"],
[AC_SUBST(
[PTHREAD_LIBADD],
[$ac_cv_pthread_LIBADD])
])
AS_IF(
[test "x$ac_cv_pthread" = xpthread],
[AC_SUBST(
[ax_pthread_pc_libs_private],
[-lpthread])
])
])
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