ENH: add support for the Portland Compiler to CMake, can build cmake and the tests pass (except the wrapping tests, which fail to link to the g++-compiled Qt)

Alex

Directory.cxx

@@ -193,6 +193,15 @@ unsigned long Directory::GetNumberOfFilesInDirectory(const char* name)
 #include <sys/types.h>
 #include <dirent.h>
 
+/* There is a problem with the Portland compiler, large file
+support and glibc/Linux system headers: 
+http://www.pgroup.com/userforum/viewtopic.php?
+p=1992&sid=f16167f51964f1a68fe5041b8eb213b6
+*/
+#if defined(__PGI) && defined(__USE_FILE_OFFSET64)
+# define dirent dirent64
+#endif
+
 namespace KWSYS_NAMESPACE
 {