Put a flag in that will stop system tools from deleting system environment...

Put a flag in that will stop system tools from deleting system environment memory on exit, as it can cause gcov to crash the programs.

Configure.hxx.in

@@ -17,6 +17,9 @@
 /* Include C configuration.  */
 #include <@KWSYS_NAMESPACE@/Configure.h>
 
+/* Disable cleanup of putenv memory for issues with GCOV */
+#cmakedefine KWSYS_DO_NOT_CLEAN_PUTENV
+
 /* Whether ANSI C++ stream headers are to be used.  */
 #define @KWSYS_NAMESPACE@_IOS_USE_ANSI @KWSYS_IOS_USE_ANSI@
 

SystemTools.cxx

@@ -415,11 +415,13 @@ public:
 
 kwsysDeletingCharVector::~kwsysDeletingCharVector()
 {
+#ifndef KWSYS_DO_NOT_CLEAN_PUTENV
   for(kwsys_stl::vector<char*>::iterator i = this->begin();
       i != this->end(); ++i)
     {
     delete []*i;
     }
+#endif
 }
 bool SystemTools::PutEnv(const char* value)
 {