Index: SysExec.cpp
===================================================================
--- SysExec.cpp	(Revision 6822)
+++ SysExec.cpp	(Arbeitskopie)
@@ -17,9 +17,8 @@
 NAMESPACE_UPP
 
 // replacement of tmpfile() -- has problems in windows
-static FILE *TempFile(void)
+static FILE *TempFile(const String& fName)
 {
-	String fName = GetTempFileName();
 	FILE *f = fopen(fName, "w+");
 	return f;
 }
@@ -37,14 +36,16 @@
 	int saveStdout = dup(fileno(stdout));
 
 	// creates and opens a temporary file and assigns stdout to it
-	int OutFile = fileno(TempFile());
+	String OutfName = GetTempFileName();
+	int OutFile = fileno(TempFile(OutfName));
 	dup2(OutFile, 1);
 
 	// saves stderr stream state
 	int saveStderr = dup(fileno(stderr));
 
 	// creates and opens a temporary file and assigns stdout to it
-	int ErrFile = fileno(TempFile());
+	String ErrfName = GetTempFileName();
+	int ErrFile = fileno(TempFile(ErrfName));
 	dup2(ErrFile, 2);
 
 	// builds the arguments and the environment
@@ -123,9 +124,25 @@
 	}
 
 	// closes files
-	close(OutFile);
-	close(ErrFile);
+	if(close(OutFile) < 0) {
+		Cerr() << "Error closing temporary file for stdout\n";
+	} else {
+#ifdef flagDELETE_TMP_FILES
+		DeleteFile(~OutfName);
+#endif
+	}
 
+	if (close(ErrFile) < 0) {
+		Cerr() << "Error closing temporary file for stdout\n";
+	} else {
+#ifdef flagDELETE_TMP_FILES
+		DeleteFile(~ErrfName);
+#endif
+	}
+
+	free(argv);
+	free(envv);
+
 	return (!result);
 
 } // END SysExec()