custom HTTP is not required on Windows

Author: martin-kudlicka

CMakeLists.txt

@@ -11,7 +11,7 @@ option(COUNTLY_USE_CUSTOM_HTTP "Use a custom HTTP library" OFF)
 option(COUNTLY_USE_SQLITE "Use SQLite" OFF)
 option(COUNTLY_BUILD_TESTS "Build test programs" OFF)
 
-if (NOT BUILD_SHARED_LIBS AND NOT COUNTLY_CUSTOM_HTTP)
+if (NOT WIN32 AND NOT BUILD_SHARED_LIBS AND NOT COUNTLY_CUSTOM_HTTP)
   message(FATAL_ERROR "You must provide a custom HTTP function when compiling statically.")
 endif()