Updated README for building on win32.

README

@@ -19,6 +19,15 @@ Basic WIN32 build instructions (on Fedora 13; requires mingw32):
 	MINGW32_CFLAGS="-O3 -Wall -msse2" mingw32-configure
 	make
 	./mknsis.sh
+	
+Native WIN32 build instructions (on mingw32, on windows):
+	Install AMD APP sdk, latest version
+	Install mingw32
+	Install libcurl, copy libcurl.m4 into /mingw/share/aclocal
+	Run:
+	./autogen.sh
+	CFLAGS="-O3 -Wall -msse2 -I<path to AMD APP include>" LDFLAGS="-L<path to AMD APP lib/x86>" ./configure
+	make
 
 Usage instructions:  Run "minerd --help" to see options.