Merge pull request wxWidgets#1208 from RobinD42/some-build-fixes

Enable wxPython's build to check results of wxWidgets configuration

(cherry picked from commit a6f6fff)

CHANGES.rst

@@ -67,6 +67,10 @@ Changes in this release include the following:
 
 * Updated sip to version 4.19.16.
 
+* Added helper functions to check results of wxWidgets configure during the
+  build of wxPython. Currently used to determine if the wx webview library
+  should be added to the link command. (#1138)
+
 
 
 

buildtools/config.py

@@ -195,6 +195,12 @@ def finishSetup(self, wx_config=None, debug=None):
                             ]
             self.lflags = None
 
+            # These confuse WAF, but since it already reliably picks the correct
+            # MSVC it shouldn't hurt to get rid of them.
+            for name in ['CC', 'CXX']:
+                if os.environ.get(name):
+                    os.environ.pop(name)
+
             # Other MSVC flags...
             # Uncomment these to have debug info for all kinds of builds
             #self.cflags += ['/Od', '/Z7']
@@ -570,6 +576,34 @@ def adjustLFLAGS(self, lflags, libdirs, libs):
         return newLFLAGS
 
 
+    def checkSetup(self, build_dir, flag):
+        """
+        Find the setup.h generated by wxWidgets and return True if the given
+        flag (eg. "wxUSE_WEBKIT") is enabled.
+        """
+        def _find_setup():
+            for dirpath, dirnames, filenames in os.walk(build_dir):
+                for name in filenames:
+                    if name == 'setup.h':
+                        return opj(dirpath, name)
+            return None
+
+        setup = _find_setup()
+        with open(setup, 'rt') as f:
+            for line in f:
+                if flag in line:
+                    return '1' in line.split()
+        return False
+
+
+    def findWxConfigDir(self, wx_config):
+        output = runcmd(wx_config + " --cflags", getOutput=True, echoCmd=False)
+        # We expect that the first -I flag is the path we're looking for here
+        configDir = output.split()[0]
+        assert configDir.startswith('-I')
+        configDir = configDir[2:]
+        return configDir
+
 
 # We'll use a factory function so we can use the Configuration class as a singleton
 _config = None

wscript

@@ -92,9 +92,11 @@ def configure(conf):
         conf.env.PYTHON = conf.options.python
     conf.load('python')
     conf.check_python_version(minver=(2,7,0))
-    if isWindows:
+    if isWindows or isDarwin:
         # Search for the Python headers without doing some stuff that could
-        # incorrectly fail on Windows. See my_check_python_headers below.
+        # incorrectly fail on Windows. Seems to help on Darwin too. See
+        # my_check_python_headers below.
+        # TODO: Check if it can/should be used on other platforms too.
         conf.my_check_python_headers()
     else:
         conf.check_python_headers()
@@ -181,6 +183,9 @@ def configure(conf):
 
 
     else:
+        # TODO: Double-check that this works when using an installed wxWidgets
+        wxConfigDir = cfg.findWxConfigDir(conf.options.wx_config)
+
         # Configuration stuff for non-Windows ports using wx-config
         conf.env.CFLAGS_WX   = list()
         conf.env.CXXFLAGS_WX = list()
@@ -221,8 +226,12 @@ def configure(conf):
                        uselib_store='WXGL', mandatory=True,
                        msg='Finding libs for WXGL')
 
+        if cfg.checkSetup(wxConfigDir, 'wxUSE_WEBVIEW'):
+            wv_libs = '--libs webview,core,net'
+        else:
+            wv_libs = '--libs core,net'
         conf.check_cfg(path=conf.options.wx_config, package='',
-                       args='--cxxflags --libs webview,core,net' + rpath,
+                       args='--cxxflags ' + wv_libs + rpath,
                        uselib_store='WXWEBVIEW', mandatory=True,
                        msg='Finding libs for WXWEBVIEW')