--- libaitsess/configure.in	2011/09/07 15:52:35	1.3.2.1
+++ libaitsess/configure.in	2011/09/07 15:59:46	1.3.2.2
@@ -1,6 +1,6 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.3.2.1 2011/09/07 15:52:35 misho Exp $
+# $Id: configure.in,v 1.3.2.2 2011/09/07 15:59:46 misho Exp $
 #
 AC_INIT(libaitsess, 3.0, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitsess.c])
@@ -20,6 +20,7 @@ CFLAGS="-Wall -O2 -fPIC -I/usr/local/include ${CFLAGS}
 LDFLAGS="-L/usr/local/lib ${LDFLAGS}"
 
 # Checks for libraries.
+AC_CHECK_LIB(pthread, [pthread_create])
 
 # Checks for header files.
 
@@ -31,6 +32,7 @@ AC_C_INLINE
 AC_FUNC_MALLOC
 AC_FUNC_MMAP
 AC_CHECK_FUNCS([bzero memset munmap])
+AC_CHECK_FUNCS([pthread_create pthread_exit])
 
 # It's stupid, but not all platforms have union semun, even those that need it.
 AC_MSG_CHECKING(looking for union semun in sys/sem.h)