backout r2833: CURDIR was set to Unix style path
instead, do chdir inside Makefile
diff --git a/auto/lib/md5/makefile.msvc b/auto/lib/md5/makefile.msvc
index 2798d65..233da0f 100644
--- a/auto/lib/md5/makefile.msvc
+++ b/auto/lib/md5/makefile.msvc
@@ -7,12 +7,14 @@
 !IF "$(MD5_ASM)" == "YES"
 
 md5.lib:
+	cd $(MD5)
 	cl -c $(CFLAGS) -D MD5_ASM md5_dgst.c
 	link -lib -out:md5.lib md5_dgst.obj asm/m-win32.obj
 
 !ELSE
 
 md5.lib:
+	cd $(MD5)
 	cl -c $(CFLAGS) md5_dgst.c
 	link -lib -out:md5.lib md5_dgst.obj