Merge branch 'build_cmake' of https://github.com/TcT2k/wxWidgets

Add CMake-based build system.

Merge the original branch without any changes except for resolving the
conflict due to moving the contents of .travis.yml to a separate file by
propagating the changes done in this file since then to the new script
and rerunning ./build/update-setup-h and ./build/cmake/update_files.py
to update the file lists changed in the meanwhile.

Closes https://github.com/wxWidgets/wxWidgets/pull/330

build/tools/travis-ci.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+#
+# This script is used by Travis CI to configure, build and test wxWidgets
+
+set -e
+
+case $wxTOOLSET in
+    cmake)
+        if [ `uname -s` = "Linux" ] && [ `lsb_release -cs` = "precise" ]; then
+            echo Updating CMake...
+            wget -O - https://cmake.org/files/v3.6/cmake-3.6.2-Linux-x86_64.tar.gz | tar xzf -
+            export PATH=`pwd`/cmake-3.6.2-Linux-x86_64/bin:$PATH
+        fi
+
+        if [ -z $wxCMAKE_TESTS ]; then wxCMAKE_TESTS=CONSOLE_ONLY; fi
+        cmake --version
+        echo 'travis_fold:start:configure'
+        echo 'Configuring...'
+        mkdir build_cmake
+        pushd build_cmake
+        cmake -G "$wxCMAKE_GENERATOR" $wxCMAKE_DEFINES -D wxBUILD_SAMPLES=SOME -D wxBUILD_TESTS=$wxCMAKE_TESTS ..
+        echo 'travis_fold:end:configure'
+        echo 'travis_fold:start:building'
+        echo 'Building...'
+        cmake --build .
+        echo 'travis_fold:end:building'
+        if [ "$wxCMAKE_TESTS" != "OFF" ]; then
+            echo 'travis_fold:start:testing'
+            echo 'Testing...'
+            ctest . -C Debug -V --output-on-failure
+            echo 'travis_fold:end:testing'
+        fi
+        ;;
+    *)
+        echo 'Configuring...' && echo -en 'travis_fold:start:script.configure\\r'
+        ./configure --disable-optimise $wxCONFIGURE_FLAGS
+        echo -en 'travis_fold:end:script.configure\\r'
+        echo 'Building...' && echo -en 'travis_fold:start:script.build\\r'
+        make
+        echo -en 'travis_fold:end:script.build\\r'
+        echo 'Building tests...' && echo -en 'travis_fold:start:script.tests\\r'
+        make -C tests
+        echo -en 'travis_fold:end:script.tests\\r'
+        echo 'Testing...' && echo -en 'travis_fold:start:script.testing\\r'
+        pushd tests && ./test && popd
+        echo -en 'travis_fold:end:script.testing\\r'
+        echo 'Building samples...' && echo -en 'travis_fold:start:script.samples\\r'
+        (test "$wxSKIP_SAMPLES" && echo 'SKIPPED') || make samples
+        echo -en 'travis_fold:end:script.samples\\r'
+        echo 'Installing...' && echo -en 'travis_fold:start:script.install\\r'
+        sudo make install
+        echo -en 'travis_fold:end:script.install\\r'
+        echo 'Testing installation...' && echo -en 'travis_fold:start:script.testinstall\\r'
+        make -C samples/minimal -f makefile.unx clean
+        make -C samples/minimal -f makefile.unx $wxMAKEFILE_FLAGS
+        echo -en 'travis_fold:end:script.testinstall\\r'
+        ;;
+esac