Unlink .vpp files without --debug

git-svn-id: file://localhost/svn/verilator/trunk/verilator@808 77ca24e4-aefa-0310-84f0-b9a241c72d87

Changes

@@ -7,6 +7,8 @@ indicates the contributor was also the author of the fix; Thanks!
 
 **** Don't core dump on errors when not under --debug.  [Allan Cochrane]
 
+**** Remove .vpp intermediate files when not under --debug.
+
 * Verilator 3.620 10/04/2006
 
 ***  Support simple inout task ports.  [Eugene Weber]

bin/verilator

@@ -720,7 +720,7 @@ In certain optimization modes, it also creates:
 
 It also creates internal files that can be mostly ignored:
 
-    {each_verilog_module}.vpp		// Post-processed verilog source code
+    {each_verilog_module}.vpp		// Post-processed verilog (--debug)
     {prefix}.flags_vbin			// Verilator dependencies
     {prefix}.flags_vpp			// Pre-processor dependencies
     {prefix}{misc}.d			// Make dependencies (-MMD)

src/V3Read.cpp

@@ -91,6 +91,10 @@ void V3Read::readFile(FileLine* fileline, const string& modfilename, bool inLibr
     if (!v3Global.opt.preprocOnly()) {
 	lexFile (vppfilename, modfilename);
     }
+
+    if (!V3Error::debugDefault()) {
+	unlink (vppfilename.c_str());
+    }
 }
 
 void V3Read::lexFile(const string& vppfilename, const string& modname) {