--- libpthread-stubs-0.1~orig/configure.ac	2006-11-22 16:51:21.000000000 +0900
+++ libpthread-stubs-0.1/configure.ac	2009-08-06 02:43:35.000000000 +0900
@@ -30,9 +30,16 @@
 fi
 
 
-PKG_CONFIG_LIBS=
+have_all_stubs=
 AC_CHECK_FUNCS([pthread_self pthread_mutex_init pthread_mutex_destroy pthread_mutex_lock pthread_mutex_unlock pthread_cond_init pthread_cond_destroy pthread_cond_wait pthread_cond_signal pthread_cond_broadcast pthread_equal],
-	       [], [PKG_CONFIG_LIBS='-L${libdir} -lpthread-stubs'])
+	       [have_all_stubs=yes])
+AC_CHECK_FUNCS([__libc_thr_self __libc_mutex_init __libc_mutex_destroy __libc_mutex_lock __libc_mutex_unlock __libc_cond_init __libc_cond_destroy __libc_cond_wait __libc_cond_signal __libc_cond_broadcast __libc_thr_equal],
+	       [have_all_stubs=yes])
+if test "x$have_all_stubs" = "xyes"; then
+  PKG_CONFIG_LIBS=''
+else
+  PKG_CONFIG_LIBS='-L${libdir} -lpthread-stubs'
+fi
 AC_SUBST([PKG_CONFIG_LIBS])
 AM_CONDITIONAL(BUILD_LIB, test "x$PKG_CONFIG_LIBS" != x)