Allow Windows with WinHTTP to use external http-parser

CMakeLists.txt

@@ -235,10 +235,21 @@ IF (WIN32 AND EMBED_SSH_PATH)
 	ADD_DEFINITIONS(-DGIT_SSH)
 ENDIF()
 
-IF (WIN32 AND WINHTTP)
-	ADD_DEFINITIONS(-DGIT_WINHTTP)
+
+FIND_PACKAGE(HTTP_Parser)
+IF (HTTP_PARSER_FOUND AND HTTP_PARSER_VERSION_MAJOR EQUAL 2)
+	INCLUDE_DIRECTORIES(${HTTP_PARSER_INCLUDE_DIRS})
+	LINK_LIBRARIES(${HTTP_PARSER_LIBRARIES})
+	LIST(APPEND LIBGIT2_PC_LIBS "-lhttp_parser")
+ELSE()
+	MESSAGE(STATUS "http-parser was not found or is too old; using bundled 3rd-party sources.")
 	INCLUDE_DIRECTORIES(deps/http-parser)
 	FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
+ENDIF()
+
+
+IF (WIN32 AND WINHTTP)
+	ADD_DEFINITIONS(-DGIT_WINHTTP)
 
 	# Since MinGW does not come with headers or an import library for winhttp,
 	# we have to include a private header and generate our own import library
@@ -291,17 +302,6 @@ ELSE ()
 		LINK_LIBRARIES(${CURL_LIBRARIES})
 		LIST(APPEND LIBGIT2_PC_LIBS ${CURL_LDFLAGS})
 	ENDIF()
-
-	FIND_PACKAGE(HTTP_Parser)
-	IF (HTTP_PARSER_FOUND AND HTTP_PARSER_VERSION_MAJOR EQUAL 2)
-		INCLUDE_DIRECTORIES(${HTTP_PARSER_INCLUDE_DIRS})
-		LINK_LIBRARIES(${HTTP_PARSER_LIBRARIES})
-		LIST(APPEND LIBGIT2_PC_LIBS "-lhttp_parser")
-	ELSE()
-		MESSAGE(STATUS "http-parser was not found or is too old; using bundled 3rd-party sources.")
-		INCLUDE_DIRECTORIES(deps/http-parser)
-		FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
-	ENDIF()
 ENDIF()
 
 # Specify sha1 implementation