[libxml2] Runtest portability patch for Solaris

[Daniel Veillard <veillard src gnome org>]

commit 85b07d188c9a0df8189b0136783f598c6aba94a9
Author: Tim Rice <tim multitalents net>
Date:   Tue Aug 25 12:38:29 2009 +0200

    Runtest portability patch for Solaris
    
    * runtest.c: use defined(__sun) instead of defined(solaris)

 runtest.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/runtest.c b/runtest.c
index c989953..c821786 100644
--- a/runtest.c
+++ b/runtest.c
@@ -3911,7 +3911,7 @@ thread_specific_data(void *private_data)
     return ((void *) Okay);
 }
 
-#if defined(linux) || defined(solaris) || defined(__APPLE_CC__)
+#if defined(linux) || defined(__sun) || defined(__APPLE_CC__)
 
 #include <pthread.h>