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/cmake/tests/base/CMakeLists.txt

@@ -0,0 +1,105 @@
+#############################################################################
+# Name:        build/cmake/tests/base/CMakeLists.txt
+# Purpose:     CMake file for base test
+# Author:      Tobias Taschner
+# Created:     2016-10-31
+# Copyright:   (c) 2016 wxWidgets development team
+# Licence:     wxWindows licence
+#############################################################################
+
+set(TEST_SRC
+    test.cpp
+    any/anytest.cpp
+    archive/archivetest.cpp
+    archive/ziptest.cpp
+    archive/tartest.cpp
+    arrays/arrays.cpp
+    base64/base64.cpp
+    cmdline/cmdlinetest.cpp
+    config/fileconf.cpp
+    config/regconf.cpp
+    datetime/datetimetest.cpp
+    events/evthandler.cpp
+    events/evtlooptest.cpp
+    events/evtsource.cpp
+    events/stopwatch.cpp
+    events/timertest.cpp
+    exec/exec.cpp
+    file/dir.cpp
+    file/filefn.cpp
+    file/filetest.cpp
+    filekind/filekind.cpp
+    filename/filenametest.cpp
+    filesys/filesystest.cpp
+    fontmap/fontmaptest.cpp
+    formatconverter/formatconvertertest.cpp
+    fswatcher/fswatchertest.cpp
+    hashes/hashes.cpp
+    interactive/output.cpp
+    interactive/input.cpp
+    intl/intltest.cpp
+    lists/lists.cpp
+    log/logtest.cpp
+    longlong/longlongtest.cpp
+    mbconv/convautotest.cpp
+    mbconv/mbconvtest.cpp
+    misc/dynamiclib.cpp
+    misc/environ.cpp
+    misc/metatest.cpp
+    misc/misctests.cpp
+    misc/module.cpp
+    misc/pathlist.cpp
+    misc/typeinfotest.cpp
+    net/ipc.cpp
+    net/socket.cpp
+    regex/regextest.cpp
+    regex/wxregextest.cpp
+    scopeguard/scopeguardtest.cpp
+    strings/iostream.cpp
+    strings/numformatter.cpp
+    strings/strings.cpp
+    strings/stdstrings.cpp
+    strings/tokenizer.cpp
+    strings/unichar.cpp
+    strings/unicode.cpp
+    strings/vararg.cpp
+    strings/crt.cpp
+    strings/vsnprintf.cpp
+    streams/bstream.cpp
+    streams/datastreamtest.cpp
+    streams/ffilestream.cpp
+    streams/fileback.cpp
+    streams/filestream.cpp
+    streams/iostreams.cpp
+    streams/largefile.cpp
+    streams/memstream.cpp
+    streams/socketstream.cpp
+    streams/sstream.cpp
+    streams/stdstream.cpp
+    streams/tempfile.cpp
+    streams/textstreamtest.cpp
+    streams/zlibstream.cpp
+    textfile/textfiletest.cpp
+    thread/atomic.cpp
+    thread/misc.cpp
+    thread/queue.cpp
+    thread/tls.cpp
+    uris/ftp.cpp
+    uris/uris.cpp
+    uris/url.cpp
+    vectors/vectors.cpp
+    weakref/evtconnection.cpp
+    weakref/weakref.cpp
+    xlocale/xlocale.cpp
+    )
+
+if(wxUSE_XML)
+    list(APPEND TEST_SRC xml/xmltest.cpp)
+endif()
+
+wx_add_test(test_base ${TEST_SRC})
+target_compile_definitions(test_base PRIVATE wxUSE_GUI=0 wxUSE_BASE=1)
+if(wxUSE_XML)
+    wx_exe_link_libraries(test_base xml)
+endif()
+wx_test_enable_precomp(test_base)