Autoconf: check whether pthread spinlock is implemented (ab38ddc0) · Commits · 戴 / Bird

aclocal.m4

+24 −2

Original line number	Diff line number	Diff line
		@@ -36,8 +36,6 @@ AC_DEFUN([BIRD_CHECK_PTHREADS],
		[
		pthread_t pt;
		pthread_create(&pt, NULL, NULL, NULL);
		pthread_spinlock_t lock;
		pthread_spin_lock(&lock);
		]
		)
		],
		@@ -50,6 +48,30 @@ AC_DEFUN([BIRD_CHECK_PTHREADS],
		CFLAGS="$bird_tmp_cflags"
		])

		dnl ** Android API before version 24 doesn't implement spinlocks.
		AC_DEFUN([BIRD_CHECK_PTHREAD_SPINLOCK],
		[
		AC_CACHE_CHECK(
		[whether POSIX threads provide spinlocks],
		[bird_cv_lib_pthread_spinlock],
		[
		AC_LINK_IFELSE(
		[
		AC_LANG_PROGRAM(
		[ #include <pthread.h> ],
		[
		pthread_spinlock_t lock;
		pthread_spin_lock(&lock);
		]
		)
		],
		[bird_cv_lib_pthread_spinlock=yes],
		[bird_cv_lib_pthread_spinlock=no]
		)
		]
		)
		])

		AC_DEFUN([BIRD_CHECK_MPLS_KERNEL],
		[
		AC_CACHE_CHECK(

+7 −1

Original line number	Diff line number	Diff line
		@@ -127,7 +127,13 @@ if test "$enable_pthreads" != no ; then
		AC_DEFINE([USE_PTHREADS], [1], [Define to 1 if pthreads are enabled])
		CFLAGS="$CFLAGS -pthread"
		LDFLAGS="$LDFLAGS -pthread"

		BIRD_CHECK_PTHREAD_SPINLOCK
		if test "$bird_cv_lib_pthread_spinlock" = yes ; then
		AC_DEFINE([USE_PTHREAD_SPINLOCK], [1], [Define to 1 if pthreads provide spinlocks])
		proto_bfd=bfd
		fi

		elif test "$enable_pthreads" = yes ; then
		AC_MSG_ERROR([POSIX threads not available.])
		fi