Only link webview library with libwebkitgtk in wxGTK, not the core one.

Add EXTRALIBS_WEBVIEW similar to the existing EXTRALIBS_MEDIA and such and set
it in configure instead of adding libwebkitgtk and dependent libraries
directly to GUI_TK_LIBRARY.

This ensure that the core library doesn't have any dependencies on
libwebkitgtk which it doesn't need.

Closes #16624.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78026 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

build/bakefiles/config.bkl

@@ -410,6 +410,7 @@ to run the tests, include CppUnit library here.
         <option name="EXTRALIBS_GUI"/>
         <option name="EXTRALIBS_OPENGL"/>
         <option name="EXTRALIBS_SDL"/>
+        <option name="EXTRALIBS_WEBVIEW"/>
         <option name="CXXWARNINGS"/>
         <option name="HOST_SUFFIX"/>
         <option name="DYLIB_RPATH_INSTALL"/>
@@ -492,6 +493,7 @@ it if SHARED=1 unless you know what you are doing.
             <if cond="COMPILER=='gcc'">-lopengl32 -lglu32</if>
         </set>
         <set var="EXTRALIBS_SDL"/>
+        <set var="EXTRALIBS_WEBVIEW"/>
 
         <set var="WITH_PLUGIN_SDL">0</set>
 

build/bakefiles/monolithic.bkl

@@ -26,6 +26,7 @@
         <ldlibs>$(EXTRALIBS_HTML)</ldlibs>
         <ldlibs>$(EXTRALIBS_MEDIA)</ldlibs>
         <ldlibs>$(PLUGIN_MONOLIB_EXTRALIBS)</ldlibs>
+        <ldlibs>$(EXTRALIBS_WEBVIEW)</ldlibs>
         <library>$(wxscintilla_library_link)</library>
     </dll>
 

build/bakefiles/multilib.bkl

@@ -183,6 +183,7 @@
         <sources>$(WEBVIEW_SRC)</sources>
         <library>coredll</library>
         <library>basedll</library>
+        <ldlibs>$(EXTRALIBS_WEBVIEW)</ldlibs>
         <msvc-headers>$(WEBVIEW_HDR)</msvc-headers>
     </dll>
 

build/bakefiles/wxwin.py

@@ -51,6 +51,7 @@ EXTRALIBS = {
     'html' : '$(EXTRALIBS_HTML)',
     'adv' : '$(PLUGIN_ADV_EXTRALIBS)',
     'media' : '$(EXTRALIBS_MEDIA)',
+    'webview' : '$(EXTRALIBS_WEBVIEW)',
 }
 
 def mkLibName(wxid):