Fix #54: Fix settings not being properly quoted

Author: ZehMatt

src/cmake_generator.cpp

@@ -163,10 +163,11 @@ struct Command {
 
     static std::string quote(const std::string &str) {
         // Don't quote arguments that don't need quoting
-        if (str.find(' ') == std::string::npos && str.find('\"') == std::string::npos && str.find('/') == std::string::npos &&
-            str.find(';') == std::string::npos) {
+        // https://cmake.org/cmake/help/latest/manual/cmake-language.7.html#unquoted-argument
+        // NOTE: Normally '/' does not require quoting according to the documentation but this has been the case here
+        //       previously, so for backwards compatibility its still here.
+        if (str.find_first_of("()#\"\\'> |/") == str.npos)
             return str;
-        }
         std::string result;
         result += "\"";
         for (char ch : str) {