Merge in Windows port using mingw and make.

libmemlayer/Makefile

@@ -1,7 +1,6 @@
+ROOT=..
+include ../Make.config
 LIB=libmemlayer.a
-CC=gcc
-CFLAGS=-I../include -I. -c -ggdb -D_THREAD_SAFE -pthread
-O=o
 
 OFILES=\
 	draw.$O\
@@ -18,8 +17,8 @@ OFILES=\
 	unload.$O
 
 $(LIB): $(OFILES)
-	ar r $(LIB) $(OFILES)
-	ranlib $(LIB)
+	$(AR) r $(LIB) $(OFILES)
+	$(RANLIB) $(LIB)
 
 %.$O: %.c
 	$(CC) $(CFLAGS) $*.c

libmemlayer/mkfile

@@ -1,23 +0,0 @@
-<$DSRC/mkfile-$CONF
-TARG=libmemlayer.$L
-
-OFILES=\
-	draw.$O\
-	lalloc.$O\
-	layerop.$O\
-	ldelete.$O\
-	lhide.$O\
-	line.$O\
-	load.$O\
-	lorigin.$O\
-	lsetrefresh.$O\
-	ltofront.$O\
-	ltorear.$O\
-	unload.$O\
-
-HFILES=\
-	../include/memlayer.h\
-	../include/memdraw.h\
-	../include/draw.h
-
-<$DSRC/mklib-$CONF