From 2c649f2012a20259bfdcdc33ca38be51e6209eaf Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Sun, 22 May 2016 01:00:58 +1200
Subject: [PATCH] Do not override user defined -std option

---
 configure.ac | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index c80013bad7..1e64e0ab48 100644
--- a/configure.ac
+++ b/configure.ac
@@ -95,6 +95,9 @@ fi
 # Guess the compiler type (sets squid_cv_compiler)
 SQUID_CC_GUESS_VARIANT
 
+# If the user did not specify a C++ version.
+user_cxx=`echo "$PRESET_CXXFLAGS" | grep -o -E "\-std="`
+if test "x$user_cxx" = "x"; then
 # Check for C++11 compiler support
 #
 # BUG 3613: when clang -std=c++0x is used, it activates a "strict mode"
@@ -103,8 +106,9 @@ SQUID_CC_GUESS_VARIANT
 #
 # Similar POSIX issues on MinGW 32-bit and Cygwin
 #
-if ! test "x$squid_host_os" = "xmingw" -o "x$squid_host_os" = "xcygwin" -o "x$squid_cv_compiler" = "xclang"; then
-  AX_CXX_COMPILE_STDCXX_11([noext],[optional])
+  if ! test "x$squid_host_os" = "xmingw" -o "x$squid_host_os" = "xcygwin" -o "x$squid_cv_compiler" = "xclang"; then
+    AX_CXX_COMPILE_STDCXX_11([noext],[optional])
+  fi
 fi
 
 # test for programs
-- 
2.47.2