diff --git a/qb/config.comp.sh b/qb/config.comp.sh
index cd894adfb6..f0fcc84844 100644
--- a/qb/config.comp.sh
+++ b/qb/config.comp.sh
@@ -1,2 +1,7 @@
 USE_LANG_C="yes"
-USE_LANG_CXX="yes"
+
+# C++ compiler is optional in other platforms supported by ./configure
+if [ "$OS" = 'Win32' ]; then
+	USE_LANG_CXX="yes"
+fi
+