predefine also __sun to have TString::Readline() work on Solaris.

git-svn-id: http://root.cern.ch/svn/root/trunk@5265 27541ba8-7e3a-0410-8455-c3a389f83636

utils/src/rootcint.cxx

-// @(#)root/utils:$Name:  $:$Id: rootcint.cxx,v 1.96 2002/08/24 17:17:02 rdm Exp $
+// @(#)root/utils:$Name:  $:$Id: rootcint.cxx,v 1.97 2002/09/09 15:21:39 brun Exp $
 // Author: Fons Rademakers   13/07/96
 
 /*************************************************************************
@@ -2909,6 +2909,10 @@ int main(int argc, char **argv)
          argvv[argcc] = (char *)calloc(64, 1);
          sprintf(argvv[argcc], "-D__HP_aCC=%ld", (long)__HP_aCC); argcc++;
 #endif
+#ifdef __sun
+         argvv[argcc] = (char *)calloc(64, 1);
+         sprintf(argvv[argcc], "-D__sun=%ld", (long)__sun); argcc++;
+#endif
 #ifdef __SUNPRO_CC
          argvv[argcc] = (char *)calloc(64, 1);
          sprintf(argvv[argcc], "-D__SUNPRO_CC=%ld", (long)__SUNPRO_CC); argcc++;