Add --gtk2 option.

Default to building for gtk3.
Keep --gtk3 flag for compatibility.

build.py

@@ -392,7 +392,8 @@ def makeOptionParser():
         ("relwithdebug",   (False, "Turn on the generation of debug info for release builds on MSW.")),
         ("release",        (False, "Turn off some development options for a release build.")),
         ("keep_hash_lines",(False, "Don't remove the '#line N' lines from the SIP generated code")),
-        ("gtk3",           (False, "On Linux build for gtk3 (default gtk2)")),
+        ("gtk2",           (False, "On Linux build for gtk2 (default gtk3)")),
+        ("gtk3",           (True,  "On Linux build for gtk3")),
         ("osx_cocoa",      (True,  "Build the OSX Cocoa port on Mac (default)")),
         ("osx_carbon",     (False, "Build the OSX Carbon port on Mac (unsupported)")),
         ("mac_framework",  (False, "Build wxWidgets as a Mac framework.")),
@@ -473,6 +474,9 @@ def parseArgs(args):
         if os.path.exists('REV.txt'):
             os.unlink('REV.txt')
 
+    if options.gtk2:
+        options.gtk3 = False
+
     return options, args
 
 
@@ -1248,6 +1252,8 @@ def cmd_build_wx(options, args):
     if options.extra_make:
         build_options.append('--extra_make="%s"' % options.extra_make)
 
+    if options.gtk2:
+        build_options.append('--gtk2')
     if options.gtk3:
         build_options.append('--gtk3')
 
@@ -1395,6 +1401,8 @@ def cmd_build_py(options, args):
         build_options.append('--jobs=%s' % options.jobs)
     if options.relwithdebug:
         build_options.append('--msvc_relwithdebug')
+    if options.gtk2:
+        build_options.append('--gtk2')
     if options.gtk3:
         build_options.append('--gtk3')
 

buildbot/master.cfg

@@ -274,6 +274,8 @@ def makeFactory(port, buildType='buildOnly', pyVer='2.7'):
             else:
                 # Build both architectures for the distribution builders
                 cmd += ' --mac_arch=i386,x86_64'
+        if port == 'gtk2':
+            cmd += ' --gtk2'
         if port == 'gtk3':
             cmd += ' --gtk3'
         if port in ['win32', 'win64']:
@@ -334,11 +336,11 @@ c['builders'] = [
 
         BuilderConfig(name="build-gtk-py27",
                       slavenames=["ubuntu-x64_86-py27"],
-                      factory=makeFactory('gtk')),
+                      factory=makeFactory('gtk2')),
 
         BuilderConfig(name="build-gtk-py35",
                       slavenames=["ubuntu-x64_86-py27"],
-                      factory=makeFactory('gtk', pyVer='3.5')),
+                      factory=makeFactory('gtk2', pyVer='3.5')),
 
         BuilderConfig(name="build-gtk3-py27",
                       slavenames=["ubuntu-x64_86-py27"],

buildtools/build_wxwidgets.py

@@ -205,7 +205,8 @@ def main(wxDir, args):
         "jobs"          : (defJobs, "Number of jobs to run at one time in make. Default: %s" % defJobs),
         "install"       : (False, "Install the toolkit to the installdir directory, or the default dir."),
         "installdir"    : ("", "Directory where built wxWidgets will be installed"),
-        "gtk3"          : (False, "On Linux build for gtk3 (default gtk2)"),
+        "gtk2"          : (False, "On Linux build for gtk2 (default gtk3"),
+        "gtk3"          : (True,  "On Linux build for gtk3"),
         "mac_distdir"   : (None, "If set on Mac, will create an installer package in the specified dir."),
         "mac_universal_binary"
                         : ("", "Comma separated list of architectures to include in the Mac universal binary"),
@@ -268,9 +269,15 @@ def main(wxDir, args):
         elif options.osx_carbon:
             configure_opts.append("--with-osx_carbon")
 
+        if options.gtk2:
+            options.gtk3 = False
+
         if options.gtk3:
             configure_opts.append("--with-gtk=3")
 
+        if options.gtk2:
+            configure_opts.append("--with-gtk=2")
+
         wxpy_configure_opts = [
                             "--with-opengl",
                             "--enable-sound",

wscript

@@ -46,8 +46,10 @@ def options(opt):
                    help='One or more comma separated architecture names to be used for '
                    'the Mac builds. Should be at least a subset of the architectures '
                    'used by wxWidgets and Python')
-    opt.add_option('--gtk3', dest='gtk3', action='store_true', default=False,
-                   help='On Linux build for gtk3 (default gtk2)')
+    opt.add_option('--gtk2', dest='gtk2', action='store_true', default=False,
+                   help='On Linux build for gtk2 (default gtk3)')
+    opt.add_option('--gtk3', dest='gtk3', action='store_true', default=True,
+                   help='On Linux build for gtk3')
     opt.add_option('--msvc_arch', dest='msvc_arch', default='x86', action='store',
                    help='The architecture to target for MSVC builds. Supported values '
                    'are: "x86" or "x64"')
@@ -251,10 +253,13 @@ def configure(conf):
         # wxWidgets.  If we ever support other ports then this code will need
         # to be adjusted.
         if not isDarwin:
-            if conf.options.gtk3:
-                gtkflags = os.popen('pkg-config gtk+-3.0 --cflags', 'r').read()[:-1]
-            else:
+            if conf.options.gtk2:
+                conf.options.gtk3 = False
+            if conf.options.gtk2:
                 gtkflags = os.popen('pkg-config gtk+-2.0 --cflags', 'r').read()[:-1]
+            else:
+                gtkflags = os.popen('pkg-config gtk+-3.0 --cflags', 'r').read()[:-1]
+
             conf.env.CFLAGS_WX   += gtkflags.split()
             conf.env.CXXFLAGS_WX += gtkflags.split()