Windows build/install fixes

setup.cfg

@@ -35,7 +35,7 @@ install_requires =
 	pysocks # xmrwallet.py
 	pexpect
 	scrypt; platform_system != "Windows" # requires user intervention to install on MSYS2
-	semantic-version # scripts/create-token.py
+	semantic-version; platform_system != "Windows" # scripts/create-token.py
 	aiohttp; platform_system != "Windows"
 	pysha3; platform_system != "Windows"
 

setup.py

@@ -19,7 +19,7 @@ def build_libsecp256k1():
 			'Windows': (
 				['sh','./autogen.sh'],
 				['sh','./configure','CFLAGS=-g -O2 -fPIC','--disable-dependency-tracking'],
-				['mingw32-make','MAKE=mingw32-make','LIBTOOL=/mingw64/bin/libtool']
+				['mingw32-make']
 			),
 			'Linux': (
 				['./autogen.sh'],