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Code Releases Activity

Autoconf: check whether pthread spinlock is implemented

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This check is needed to build with pthreads on Android
This commit is contained in:
Jan Maria Matejka 2018-09-10 15:11:55 +02:00
parent 2312622923
commit aa5f58ce89
2 changed files with 31 additions and 3 deletions
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26
aclocal.m4 vendored
View File

@ -17,8 +17,6 @@ AC_DEFUN([BIRD_CHECK_PTHREADS],
[ [
pthread_t pt; pthread_t pt;
pthread_create(&pt, NULL, NULL, NULL); pthread_create(&pt, NULL, NULL, NULL);
pthread_spinlock_t lock;
pthread_spin_lock(&lock);
] ]
) )
], ],
@ -31,6 +29,30 @@ AC_DEFUN([BIRD_CHECK_PTHREADS],
CFLAGS="$bird_tmp_cflags" CFLAGS="$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_DEFUN([BIRD_CHECK_MPLS_KERNEL],
[ [
AC_CACHE_CHECK( AC_CACHE_CHECK(

8
configure.ac
View File

@ -120,7 +120,13 @@ if test "$enable_pthreads" != no ; then
AC_DEFINE([USE_PTHREADS], [1], [Define to 1 if pthreads are enabled]) AC_DEFINE([USE_PTHREADS], [1], [Define to 1 if pthreads are enabled])
CFLAGS="$CFLAGS -pthread" CFLAGS="$CFLAGS -pthread"
LDFLAGS="$LDFLAGS -pthread" LDFLAGS="$LDFLAGS -pthread"
proto_bfd=bfd
BIRD_CHECK_PTHREAD_SPINLOCK
if test "$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 "$enable_pthreads" = yes ; then elif test "$enable_pthreads" = yes ; then
AC_MSG_ERROR([POSIX threads not available.]) AC_MSG_ERROR([POSIX threads not available.])
fi fi