From 54b048fa0db15486726566e43751e760448c3032 Mon Sep 17 00:00:00 2001
From: Eric Platon <zaraki@gmx.com>
Date: Mon, 23 Apr 2018 16:11:24 +0900
Subject: [PATCH] Fix wrong environment test that breaks clang++ builds.

g++ builds require extra flags rejected by clang++. The bug is that the
flags are actually added unconditionally. This commit fixes the
condition.

See https://github.com/tesseract-ocr/tesseract/pull/1474
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6e5673ef50..8f6bbce09e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -135,8 +135,8 @@ fi
 if $avx -o $avx2 -o $sse41; then
   case "${host_os}" in
     *darwin* | *-macos10*)
-       if test -z "$CLANG"; then
-         # When using AVX, AVX2, or SSE4.1:
+       if test g++ = "$CXX"; then
+         # When using AVX, AVX2, or SSE4.1 with g++:
          # Must tell AS to use clang integrated assembler,
          # instead of the GNU based system assembler.
          CXXFLAGS="$CXXFLAGS -Wa,-q"