diff -Naur zstd-1.1.2-orig/Makefile zstd-1.1.2/Makefile
--- zstd-1.1.2-orig/Makefile	2016-12-14 21:53:47.000000000 +0800
+++ zstd-1.1.2/Makefile	2016-12-26 20:24:50.755892300 +0800
@@ -61,7 +61,7 @@
 #------------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, Hurd and some BSD targets
 #------------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU FreeBSD DragonFly NetBSD))
+ifneq (,$(filter $(shell uname -o),Linux Darwin GNU/kFreeBSD GNU FreeBSD DragonFly NetBSD Msys))
 HOST_OS = POSIX
 .PHONY: install uninstall travis-install clangtest gpptest armtest usan asan uasan
 
diff -Naur zstd-1.1.2-orig/programs/Makefile zstd-1.1.2/programs/Makefile
--- zstd-1.1.2-orig/programs/Makefile	2016-12-14 21:53:47.000000000 +0800
+++ zstd-1.1.2/programs/Makefile	2016-12-26 20:25:33.603688900 +0800
@@ -153,7 +153,7 @@
 #----------------------------------------------------------------------------------
 #make install is validated only for Linux, OSX, kFreeBSD, Hurd and some BSD targets
 #----------------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD))
+ifneq (,$(filter $(shell uname -o),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD Msys))
 install: zstd
 	@echo Installing binaries
 	@install -d -m 755 $(DESTDIR)$(BINDIR)/ $(DESTDIR)$(MANDIR)/