diff --git a/defaults.win.mk b/defaults.win.mk
new file mode 100644
index 0000000..69b323a
--- /dev/null
+++ b/defaults.win.mk
@@ -0,0 +1,30 @@
+ARCH := w32
+MAKEFLAGS += --no-print-directory
+
+TARGET_ARCH := -march=native
+
+CFLAGS := -mwindows -DDISPID_NEWWINDOW3=0 -U__STRICT_ANSI__
+CCFLAGS := -m32 -mwindows -DDISPID_NEWWINDOW3=0 -U__STRICT_ANSI__
+CXXFLAGS := -m32 -mwindows -DDISPID_NEWWINDOW3=0 -U__STRICT_ANSI__
+
+# debug
+LDFLAGS_debug   := -g
+CXXFLAGS_debug := -g -O0
+CFLAGS_debug := -g -O0 
+LDFLAGS_debug := -g -O0
+
+# release
+LDFLAGS_release := -g
+CXXFLAGS_release := -g -O3
+CFLAGS_release := -g -O3
+LDFLAGS_release := -g -O3
+
+# Environment
+NM=i686-w64-mingw32-nm
+RANLIB=i686-w64-mingw32-ranlib
+CC=i686-w64-mingw32-gcc
+CCC=i686-w64-mingw32-g++
+CXX=i686-w64-mingw32-g++
+AS=i686-w64-mingw32-as
+
+BUILD_DIR ?= ./build/$(ARCH)/${CONFIG}