diff -r 5a13d390f989 Makefile.in
--- a/Makefile.in	Tue Apr 20 14:59:46 2010 +0200
+++ b/Makefile.in	Tue Apr 20 17:46:22 2010 +0200
@@ -167,8 +167,8 @@
 	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
 	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
 	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
-	cp $(STATICLIB) $(DESTDIR)$(libdir)
-	cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
+	[ -z '$(STATICLIB)'  ] || cp $(STATICLIB)  $(DESTDIR)$(libdir)
+	[ -z '$(SHAREDLIBV)' ] || cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
 	cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB)
 	-@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
 	-@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
diff -r 5a13d390f989 configure
--- a/configure	Tue Apr 20 14:59:46 2010 +0200
+++ b/configure	Tue Apr 20 17:46:22 2010 +0200
@@ -122,10 +122,7 @@
   CYGWIN* | Cygwin* | cygwin* | OS/2*)
         EXE='.exe' ;;
   MINGW*|mingw*)
-# temporary bypass
         rm -f $test.[co] $test $test$shared_ext
-        echo "Please use win32/Makefile.gcc instead."
-        exit 1
         LDSHARED=${LDSHARED-"$cc -shared"}
         LDSHAREDLIBC=""
         EXE='.exe' ;;