1 files changed, 2 insertions, 1 deletions

diff --git a/src/lj_arch.h b/src/lj_arch.h
index 14448565..ff4628df 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -65,7 +65,8 @@
 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
       defined(__NetBSD__) || defined(__OpenBSD__)
 #define LUAJIT_OS       LUAJIT_OS_BSD
-#elif defined(__solaris__) || defined(__CYGWIN__)
+#elif (defined(__sun__) && defined(__svr4__)) || defined(__solaris__) || \
+      defined(__CYGWIN__)
 #define LUAJIT_OS       LUAJIT_OS_POSIX
 #else
 #define LUAJIT_OS       LUAJIT_OS_OTHER