Cleaned up test Makefiles.

test/Makefile

@@ -1,43 +1,30 @@
-
-# top-level makefile for the regression tests
+# top-level Makefile for the regression tests
 
 # You can comment this special target when you debug the regression tests.
 # Then, make will give you more progress reports.
 .SILENT:
 
 ifneq ($(shell echo),)
-  CMD_EXE := 1
+  CMD_EXE = 1
 endif
 
 ifdef CMD_EXE
-  EXE := .exe
-  MKDIR = mkdir $(subst /,\,$1)
   RMDIR = -rmdir /s /q $(subst /,\,$1)
 else
-  EXE :=
-  MKDIR = mkdir $1
   RMDIR = $(RM) -r $1
 endif
 
-WORKDIR := ../testwrk
-
-CC := gcc
+WORKDIR = ../testwrk
 
 .PHONY: all dotests continue mostlyclean clean
 
 all: dotests
 
-$(WORKDIR):
-	$(call MKDIR,$(WORKDIR))
-
-$(WORKDIR)/bdiff$(EXE): bdiff.c | $(WORKDIR)
-	$(CC) -O2 -o $@ $<
-
 .NOTPARALLEL:
 
 dotests: mostlyclean continue
 
-continue: $(WORKDIR)/bdiff$(EXE)
+continue:
 	@$(MAKE) -C assembler all
 	@$(MAKE) -C disassembler all
 	@$(MAKE) -C val all
@@ -46,6 +33,8 @@ continue: $(WORKDIR)/bdiff$(EXE)
 	@$(MAKE) -C misc all
 
 mostlyclean:
+	@$(MAKE) -C assembler clean
+	@$(MAKE) -C disassembler clean
 	@$(MAKE) -C val clean
 	@$(MAKE) -C ref clean
 	@$(MAKE) -C err clean