--- expect5.45/tclconfig/tcl.m4.orig	2010-11-09 19:42:10.000000000 +0000
+++ expect5.45/tclconfig/tcl.m4	2015-06-29 21:58:04.038084800 +0100
@@ -1406,7 +1406,7 @@
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
-	CYGWIN_*)
+	CYGWIN_*|MSYS_*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
 	    SHLIB_SUFFIX=".dll"