don't forget to clean the .bat files

See bug #1295

compiler/Makefile

@@ -717,6 +717,7 @@ all :: $(odir)/ghc-inplace ghc-inplace
 
 ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
 all :: $(odir)/ghc-inplace.bat ghc-inplace.bat
+CLEAN_FILES += $(odir)/ghc-inplace.bat ghc-inplace.bat
 endif
 
 ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"

utils/ghc-pkg/Makefile

@@ -109,6 +109,8 @@ all :: $(INPLACE_SCRIPT_PROG).bat
 $(INPLACE_SCRIPT_PROG).bat :
 	echo '@call $(subst /,\,$(FPTOOLS_TOP_ABS_PLATFORM)/utils/ghc-pkg/$(HS_PROG)) --global-conf $(PKGCONF) %*' >> $@
 	chmod 755 $@
+
+CLEAN_FILES += $(INPLACE_SCRIPT_PROG).bat
 endif
 
 # ghc-pkg is needed to boot in rts/ and library dirs