diff -ur firebird.org/extern/cloop/Makefile firebird/extern/cloop/Makefile
--- firebird.org/extern/cloop/Makefile	2016-08-17 18:32:59.078044357 +0200
+++ firebird/extern/cloop/Makefile	2016-08-17 18:33:14.430518561 +0200
@@ -4,8 +4,6 @@
 
 TARGET	:= release
 
-CC	:= gcc
-CXX	:= g++
 LD	:= $(CXX)
 
 SRC_DIR		:= src