Changes to enable building external code.

Makefile

@@ -12,7 +12,7 @@ $(info $(MSG_PREFIX)Using LD=$(LD))
 PROG := abc
 
 MODULES := \
-	$(wildcard src/ext) src/misc/ext \
+	$(wildcard src/ext*) src/misc/ext \
 	src/base/abc src/base/abci src/base/cmd src/base/io \
 	src/base/main src/base/ver src/base/wlc src/base/test \
 	src/bdd/cudd src/bdd/dsd src/bdd/epd src/bdd/mtr src/bdd/parse \

abclib.dsp

@@ -691,6 +691,10 @@ SOURCE=.\src\base\main\mainLib.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\base\main\mainReal.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\base\main\mainUtils.c
 # End Source File
 # End Group

src/base/main/module.make

@@ -2,5 +2,6 @@ SRC +=  src/base/main/main.c \
     src/base/main/mainFrame.c \
     src/base/main/mainInit.c \
     src/base/main/mainLib.c \
+    src/base/main/mainReal.c \
     src/base/main/libSupport.c \
     src/base/main/mainUtils.c