Add a configure check for pthread_rwlock_init.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73523 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 64b78a4..82539f0 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -796,6 +796,9 @@
AC_SEARCH_LIBS(pthread_mutex_lock,pthread,
AC_DEFINE([HAVE_PTHREAD_MUTEX_LOCK],[1],
[Have pthread_mutex_lock]))
+ AC_SEARCH_LIBS(pthread_rwlock_init,pthread,
+ AC_DEFINE([HAVE_PTHREAD_RWLOCK_INIT],[1],
+ [Have pthread_rwlock_init]))
fi
dnl Allow extra x86-disassembler library