Added build system for Windows msys2

Makefile

@@ -60,6 +60,7 @@ help:
 	echo "set up configuration"
 	echo "   make configlinux      to generate the linix build"
 	echo "   make configcross      to generate the windows build using cross tools."
+	echo "   make configwindows    to generate the windows build using msys2."
 	echo " "
 	echo "   make checkdumpfile    to create a test tool for videodumps."
 

Makefile.rules.windows

@@ -0,0 +1,12 @@
+
+include Makefile.config
+
+TARGET = $(APP).exe
+CPP = g++
+CPPFLAGS = -ggdb -Wall -O0 `pkg-config --cflags gtk+-3.0 gmodule-export-2.0` -Wl,--export-dynamic -DBUILD_WINDOWS=1 -Wdeprecated
+INCLUDES = 
+LDFLAGS = -lws2_32 -ljpeg 
+LIBS = `pkg-config --libs gtk+-3.0 gmodule-export-2.0` -L/usr/lib -mwindows
+
+OBJECTS := $(OBJECTS) windows.oo
+