diff --git a/src/Make_ming.mak b/src/Make_ming.mak
index 2d8bbaf..a27ce52 100644
--- a/src/Make_ming.mak
+++ b/src/Make_ming.mak
@@ -107,16 +107,26 @@
 # uncomment 'MZSCHEME' if you want a MzScheme-enabled version
 #MZSCHEME=d:/plt
 ifdef MZSCHEME
+ifndef DYNAMIC_MZSCHEME
+DYNAMIC_MZSCHEME=yes
+endif
+
 ifndef MZSCHEME_VER
 MZSCHEME_VER=205_000
 endif
-# the modern MinGW can dynamically link to dlls directly
-# point MZSCHEME_LIBDIR to where you put libmzschXXXXXXX.dll and libgcXXXXXXX.dll
+
+ifeq (no,$(DYNAMIC_MZSCHEME))
+MZSCHEME_LIB = -lmzsch$(MZSCHEME_VER) -lmzgc$(MZSCHEME_VER)
+# the modern MinGW can dynamically link to dlls directly.
+# point MZSCHEME_DLLS to where you put libmzschXXXXXXX.dll and libgcXXXXXXX.dll
 # c:/windows/system32 isn't a good idea, use some other dir;
 # to build you can put them in temp dir)
-ifndef MZSCHEME_LIBDIR
-MZSCHEME_LIBDIR=-L$(MZSCHEME)
+ifndef MZSCHEME_DLLS
+MZSCHEME_DLLS=$(MZSCHEME)
 endif
+MZSCHEME_LIBDIR=-L$(MZSCHEME_DLLS)
+endif
+
 endif
 
 # Python support -- works with the ActiveState python 2.0 release (and others
@@ -270,6 +280,9 @@
 
 ifdef MZSCHEME
 CFLAGS += -I$(MZSCHEME)/include -DFEAT_MZSCHEME -DMZSCHEME_COLLECTS=\"$(MZSCHEME)/collects\"
+ifeq (yes, $(DYNAMIC_MZSCHEME))
+CFLAGS += -DDYNAMIC_MZSCHEME -DDYNAMIC_MZSCH_DLL=\"libmzsch$(MZSCHEME_VER).dll\" -DDYNAMIC_MZGC_DLL=\"libmzgc$(MZSCHEME_VER).dll\"
+endif
 endif
 
 ifdef RUBY
@@ -461,10 +474,6 @@
 endif
 endif
 
-ifdef MZSCHEME
-MZSCHEME_LIB = -lmzsch$(MZSCHEME_VER) -lmzgc$(MZSCHEME_VER)
-endif
-
 ifdef TCL
 LIB += -L$(TCL)/lib
 ifeq (yes, $(DYNAMIC_TCL))