[Qt] Use C++11 ABI packages

These were causing linking errors on more recent Linux distros.

Fixes #3123.

platform/linux/scripts/configure.sh

@@ -12,10 +12,10 @@ LIBUV_VERSION=1.7.5
 ZLIB_VERSION=system
 NUNICODE_VERSION=1.6
 GEOMETRY_VERSION=0.3.0
-GEOJSONVT_VERSION=4.1.2
+GEOJSONVT_VERSION=4.1.2${CXX11ABI}
 VARIANT_VERSION=1.1.0
 RAPIDJSON_VERSION=1.0.2
-GTEST_VERSION=1.7.0
+GTEST_VERSION=1.7.0${CXX11ABI}
 PIXELMATCH_VERSION=0.9.0
 WEBP_VERSION=0.5.0
 

platform/qt/scripts/configure.sh

@@ -3,8 +3,8 @@
 PROTOZERO_VERSION=1.3.0
 BOOST_VERSION=1.60.0
 GEOMETRY_VERSION=0.3.0
-GEOJSONVT_VERSION=4.1.2
-GTEST_VERSION=1.7.0
+GEOJSONVT_VERSION=4.1.2${CXX11ABI}
+GTEST_VERSION=1.7.0${CXX11ABI}
 LIBJPEG_TURBO_VERSION=1.4.2
 NUNICODE_VERSION=1.6
 PIXELMATCH_VERSION=0.9.0

scripts/check-cxx11abi.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -e
+set -o pipefail
+
+# check-cxx11abi.dat is a binary just so we can use the loader
+# to take care of finding the libstdc++ which can be tricky.
+LIBSTDCPP=$(ldd $(dirname $0)/check-cxx11abi.dat |grep libstdc++ |cut -d' ' -f3)
+
+if [ $(readelf -Ws $LIBSTDCPP |c++filt |grep -c ::__cxx11::) -gt 0 ]; then
+    echo "-cxx11abi"
+else
+    echo ""
+fi

scripts/main.mk

@@ -2,6 +2,7 @@ ifeq ($(shell uname -s), Darwin)
   export PLATFORM ?= osx
 else ifeq ($(shell uname -s), Linux)
   export PLATFORM ?= linux
+  export CXX11ABI = $(shell scripts/check-cxx11abi.sh)
 endif
 
 ifeq ($(PLATFORM),android)
@@ -48,6 +49,7 @@ ifeq ($(PLATFORM),qt)
 endif
 
 # Defaults if not set
+export CXX11ABI ?= ""
 export PLATFORM_OUTPUT ?= ./build/$(PLATFORM_SLUG)
 export PLATFORM_CONFIG_INPUT ?= platform/$(MASON_PLATFORM)/scripts/configure.sh
 export PLATFORM_CONFIG_OUTPUT ?= $(PLATFORM_OUTPUT)/config.gypi