From 2ee40f8a60501c9a907ee27cd0ebafce4ff6d058 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 22 Nov 2017 02:33:53 +0100
Subject: [PATCH] Add a build using GTK+ 3 to Travis

We need to test both wxGTK2 and wxGTK3 builds.
---
 .travis.yml                   | 2 +-
 build/tools/before_install.sh | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index c9ad509373..3532dd6b61 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ matrix:
           compiler: gcc
         - dist: trusty
           compiler: gcc
-          env: wxCONFIGURE_FLAGS="--enable-cxx11 --enable-stl" wxMAKEFILE_FLAGS="CXXFLAGS=-std=c++11"
+          env: wxGTK_VERSION=3 wxCONFIGURE_FLAGS="--enable-cxx11 --enable-stl" wxMAKEFILE_FLAGS="CXXFLAGS=-std=c++11"
         - dist: trusty
           compiler: clang
           env: wxCONFIGURE_FLAGS="--disable-shared --disable-sys-libs"
diff --git a/build/tools/before_install.sh b/build/tools/before_install.sh
index f99db4dd82..444683b503 100755
--- a/build/tools/before_install.sh
+++ b/build/tools/before_install.sh
@@ -10,7 +10,11 @@ case $(uname -s) in
     Linux)
         if [ -f /etc/apt/sources.list ]; then
             $SUDO apt-get update
-            $SUDO apt-get install -y libgtk2.0-dev libnotify-dev
+            case "$wxGTK_VERSION" in
+                3) libgtk_dev=libgtk-3-dev ;;
+                *) libgtk_dev=libgtk2.0-dev;;
+            esac
+            $SUDO apt-get install -y $libgtk_dev libnotify-dev
         fi
         ;;