fix bug inserted during `xmr/monero` renaming

- fix that currency selection is not called (in cli-miner.cpp)
- fix guard to prevent wrong currency selection if compiled for monero or aeon only

xmrstak/cli/cli-miner.cpp

@@ -255,7 +255,7 @@ int main(int argc, char *argv[])
 #elif defined(CONF_NO_MONERO)
 			tmp = "aeon";
 #endif
-			while(xmrstak::strcmp_i(tmp, "monero") && xmrstak::strcmp_i(tmp, "aeon"))
+			while(!xmrstak::strcmp_i(tmp, "monero") && !xmrstak::strcmp_i(tmp, "aeon"))
 			{
 				std::cout<<"- currency: 'monero' or 'aeon'"<<std::endl;
 				std::cin >> tmp;

xmrstak/jconf.cpp

@@ -159,13 +159,15 @@ const std::string jconf::GetCurrency()
 		currency = prv->configValues[sCurrency]->GetString();
 	if(
 #ifndef CONF_NO_MONERO
-			xmrstak::strcmp_i(currency, "monero")
+			// if monero is disabled at compile time, enable error message if selected currency is `monero`
+			!xmrstak::strcmp_i(currency, "monero")
 #else
 			true
 #endif
 			&&
 #ifndef CONF_NO_AEON
-			xmrstak::strcmp_i(currency, "aeon")
+			// if aeon is disabled at compile time, enable error message if selected currency is `aeon`
+			!xmrstak::strcmp_i(currency, "aeon")
 #else
 			true
 #endif