From ec2953e3b8cd86c91c05188d04e8054bc01cbe6c Mon Sep 17 00:00:00 2001
From: Rene Cannao <rene.cannao@gmail.com>
Date: Thu, 4 Jun 2026 20:38:46 +0000
Subject: [PATCH] build: make CXX overridable (CXX ?= g++) for clang builds

The Makefile hardcoded `CXX = g++`, which a `CXX=clang++ make` environment
prefix does not override. Downstream (ProxySQL deps build) compiles this with
clang in containers that ship only clang/clang++ (no g++), so the build failed
with exit 127 (g++: command not found). Using `?=` lets the environment-provided
compiler win while keeping g++ as the default.
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 0d0087a..37a77a8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CXX = g++
+CXX ?= g++
 CXXFLAGS = -std=c++17 -Wall -Wextra -g -O2
 CPPFLAGS = -I./include -I./third_party/googletest/googletest/include