The STL headers in gcc-4.3 have been cleaned up, so that the headers don't drag in
unnecessary dependencies which aren't requested by the standard.
This fixes build for gcc-4.3

Lubomir Kundrak <lkundrak@redhat.com>

diff -rup stellarium-0.9.0.orig/src/stelutils/STexture.cpp stellarium-0.9.0/src/stelutils/STexture.cpp
--- stellarium-0.9.0.orig/src/stelutils/STexture.cpp	2007-06-06 10:25:17.000000000 +0200
+++ stellarium-0.9.0/src/stelutils/STexture.cpp	2008-01-03 21:53:11.000000000 +0100
@@ -18,6 +18,7 @@
  */
 
 #include <cassert>
+#include <cstdlib>
 #include "STexture.hpp"
 
 /*************************************************************************