Corrected an issue with "drc catchup" that causes it not to work

because commands issued during initialization set the DRC status
in a way that causes DRCContinuous() to return immediately.
Also:  Implemented a slightly different method when automatically
finding the tech file from the input .mag file that loads a
technology .magicrc file if one exists.  If not, just the .tech
file is loaded.  This replaces the method of a previous commit
that loads the technology .tcl script.  The .magicrc file will
include the .tcl script but does other things as well.

VERSION

@@ -1 +1 @@
-8.3.430
+8.3.431

database/DBio.c

@@ -621,19 +621,19 @@ dbCellReadDef(f, cellDef, ignoreTech, dereference)
 			    found = DBSearchForTech(techfullname, tech, string, 0);
 		    }
 		
-		    /* Experimental---check for a ".tcl" file in the same */
+		    /* Experimental---check for a ".magicrc" file in	*/
-		    /* directory as ".tech" and source it instead of	  */
+		    /* the same directory as ".tech" and source it	*/
-		    /* loading the tech file.				  */
+		    /* first.						*/
 
 		    if (found)
 		    {
-			char *tclpath;
+			char *rcpath;
 
-			tclpath = (char *)mallocMagic(strlen(found) + strlen(tech)
+			rcpath = (char *)mallocMagic(strlen(found) + strlen(tech)
-					+ 6);
+					+ 10);
-			sprintf(tclpath, "%s/%s.tcl", found, tech);
+			sprintf(rcpath, "%s/%s.magicrc", found, tech);
-			Tcl_EvalFile(magicinterp, tclpath);
+			Tcl_EvalFile(magicinterp, rcpath);
-			freeMagic(tclpath);
+			freeMagic(rcpath);
 		    }
 #endif
 

drc/DRCmain.c

@@ -909,6 +909,10 @@ DRCCatchUp()
 
     background = DRCBackGround;
     DRCBackGround = DRC_SET_ON;
+    /* Always reset DRC status to "not running" before calling DRCContinous()
+     * directly.
+     */
+    DRCStatus = DRC_NOT_RUNNING;
     DRCContinuous();
     DRCBackGround = background;
 }