Limit the use of "webkit2_ext" to autoconf only in bakefiles

This is used by WebKit2 backend under Unix with configure, but is not needed
under the other platforms and prevented bakefile_gen from generating all
output files due to the of undefined USE_WEBVIEW_WEBKIT2 variable.

We could define it for formats other than autoconf, but this doesn't seem to
be useful currently, so just avoid referencing it instead.

Closes #17860.

Makefile.in

@@ -1663,15 +1663,14 @@ WEBVIEWDLL_CXXFLAGS = $(__webviewdll_PCH_INC) -D__WX$(TOOLKIT)__ \
 	$(__RTTI_DEFINE_p) $(__THREAD_DEFINE_p) -DWXBUILDING $(__INC_TIFF_BUILD_p) \
 	$(__INC_TIFF_p) $(__INC_JPEG_p) $(__INC_PNG_p) $(__INC_ZLIB_p) \
 	$(__INC_REGEX_p) $(__INC_EXPAT_p) -DWXUSINGDLL -DWXMAKINGDLL_WEBVIEW \
-	-DWX_WEB_EXTENSIONS_DIRECTORY=\"$(PLUGINS_INST_DIR)/web-extensions\" \
+	$(__webviewdll_ext_dir_define_p) $(PIC_FLAG) $(CXXWARNINGS) $(CPPFLAGS) \
-	$(PIC_FLAG) $(CXXWARNINGS) $(CPPFLAGS) $(CXXFLAGS)
+	$(CXXFLAGS)
 WEBVIEWDLL_OBJCXXFLAGS = $(__webviewdll_PCH_INC) -D__WX$(TOOLKIT)__ \
 	$(__WXUNIV_DEFINE_p) $(__DEBUG_DEFINE_p) $(__EXCEPTIONS_DEFINE_p) \
 	$(__RTTI_DEFINE_p) $(__THREAD_DEFINE_p) -DWXBUILDING $(__INC_TIFF_BUILD_p) \
 	$(__INC_TIFF_p) $(__INC_JPEG_p) $(__INC_PNG_p) $(__INC_ZLIB_p) \
 	$(__INC_REGEX_p) $(__INC_EXPAT_p) -DWXUSINGDLL -DWXMAKINGDLL_WEBVIEW \
-	-DWX_WEB_EXTENSIONS_DIRECTORY=\"$(PLUGINS_INST_DIR)/web-extensions\" \
+	$(__webviewdll_ext_dir_define_p) $(PIC_FLAG) $(CPPFLAGS) $(OBJCXXFLAGS)
-	$(PIC_FLAG) $(CPPFLAGS) $(OBJCXXFLAGS)
 WEBVIEWDLL_OBJECTS =  \
 	$(__webviewdll___win32rc) \
 	$(__WEBVIEW_SRC_PLATFORM_OBJECTS_2) \
@@ -12427,6 +12426,12 @@ COND_USE_SOTWOSYMLINKS_1___webviewdll___so_symlinks_uninst_cmd = rm -f \
 COND_USE_SOVERSOLARIS_1___webviewdll___so_symlinks_uninst_cmd = rm -f \
 	$(LIBPREFIX)wx_$(PORTNAME)$(WXUNIVNAME)$(WXUNICODEFLAG)$(WXDEBUGFLAG)$(WX_LIB_FLAVOUR)_webview-$(WX_RELEASE)$(HOST_SUFFIX).$(DLLIMP_SUFFIX)
 @COND_USE_SOVERSOLARIS_1@__webviewdll___so_symlinks_uninst_cmd = $(COND_USE_SOVERSOLARIS_1___webviewdll___so_symlinks_uninst_cmd)
+@COND_USE_WEBVIEW_WEBKIT2_1@__webviewdll_ext_dir_define_p \
+@COND_USE_WEBVIEW_WEBKIT2_1@	= \
+@COND_USE_WEBVIEW_WEBKIT2_1@	-DWX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"
+@COND_USE_WEBVIEW_WEBKIT2_1@__webviewdll_ext_dir_define_p_1 \
+@COND_USE_WEBVIEW_WEBKIT2_1@	= --define \
+@COND_USE_WEBVIEW_WEBKIT2_1@	WX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"
 @COND_PLATFORM_WIN32_1@__webviewdll___win32rc = webviewdll_version_rc.o
 @COND_PLATFORM_MACOSX_1@__WEBVIEW_SRC_PLATFORM_OBJECTS_2 \
 @COND_PLATFORM_MACOSX_1@	= webviewdll_osx_webview_webkit.o
@@ -34428,7 +34433,7 @@ htmllib_htmllbox.o: $(srcdir)/src/generic/htmllbox.cpp $(HTMLLIB_ODEP)
 @COND_PLATFORM_MACOSX_1@	$(CXXC) -c -o $@ $(HTMLLIB_CXXFLAGS) $(srcdir)/src/html/chm.cpp
 
 webviewdll_version_rc.o: $(srcdir)/src/msw/version.rc $(WEBVIEWDLL_ODEP)
-	$(WINDRES) -i$< -o$@    --define __WX$(TOOLKIT)__ $(__WXUNIV_DEFINE_p_67) $(__DEBUG_DEFINE_p_66)  $(__EXCEPTIONS_DEFINE_p_65) $(__RTTI_DEFINE_p_65) $(__THREAD_DEFINE_p_65)  --define WXBUILDING --define WXDLLNAME=$(WXDLLNAMEPREFIXGUI)$(WXUNICODEFLAG)$(WXDEBUGFLAG)$(WX_LIB_FLAVOUR)_webview$(WXCOMPILER)$(VENDORTAG)$(WXDLLVERSIONTAG) $(__RCDEFDIR_p) --include-dir $(top_srcdir)/include $(__INC_TIFF_BUILD_p_66) $(__INC_TIFF_p_66) $(__INC_JPEG_p_66) $(__INC_PNG_p_65) $(__INC_ZLIB_p_67) $(__INC_REGEX_p_65) $(__INC_EXPAT_p_65) --define WXUSINGDLL --define WXMAKINGDLL_WEBVIEW --define WX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"
+	$(WINDRES) -i$< -o$@    --define __WX$(TOOLKIT)__ $(__WXUNIV_DEFINE_p_67) $(__DEBUG_DEFINE_p_66)  $(__EXCEPTIONS_DEFINE_p_65) $(__RTTI_DEFINE_p_65) $(__THREAD_DEFINE_p_65)  --define WXBUILDING --define WXDLLNAME=$(WXDLLNAMEPREFIXGUI)$(WXUNICODEFLAG)$(WXDEBUGFLAG)$(WX_LIB_FLAVOUR)_webview$(WXCOMPILER)$(VENDORTAG)$(WXDLLVERSIONTAG) $(__RCDEFDIR_p) --include-dir $(top_srcdir)/include $(__INC_TIFF_BUILD_p_66) $(__INC_TIFF_p_66) $(__INC_JPEG_p_66) $(__INC_PNG_p_65) $(__INC_ZLIB_p_67) $(__INC_REGEX_p_65) $(__INC_EXPAT_p_65) --define WXUSINGDLL --define WXMAKINGDLL_WEBVIEW $(__webviewdll_ext_dir_define_p_1)
 
 webviewdll_webview_ie.o: $(srcdir)/src/msw/webview_ie.cpp $(WEBVIEWDLL_ODEP)
 	$(CXXC) -c -o $@ $(WEBVIEWDLL_CXXFLAGS) $(srcdir)/src/msw/webview_ie.cpp
@@ -35309,6 +35314,7 @@ sound_sdl_sound_sdl.o: $(srcdir)/src/unix/sound_sdl.cpp
 webkit2_ext_webview_webkit2_extension.o: $(srcdir)/src/gtk/webview_webkit2_extension.cpp
 	$(CXXC) -c -o $@ $(WEBKIT2_EXT_CXXFLAGS) $(srcdir)/src/gtk/webview_webkit2_extension.cpp
 
+
 @COND_PYTHON@@COND_USE_STC_1@$(srcdir)/include/wx/stc/stc.h: \
 @COND_PYTHON@@COND_USE_STC_1@$(srcdir)/src/stc/scintilla/include/Scintilla.iface \
 @COND_PYTHON@@COND_USE_STC_1@$(srcdir)/src/stc/stc.cpp.in \

build/bakefiles/multilib.bkl

@@ -176,11 +176,15 @@
     <!--                               wxWEBVIEW                          -->
     <!-- ================================================================ -->
 
+    <set var="webviewdll_ext_dir_define">
+        <if cond="FORMAT=='autoconf' and USE_WEBVIEW_WEBKIT2=='1'">WX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"</if>
+    </set>
+
     <dll id="webviewdll" template="wx_dll"
          cond="SHARED=='1' and USE_GUI=='1' and USE_WEBVIEW=='1' and MONOLITHIC=='0'">
         <define>WXUSINGDLL</define>
         <define>WXMAKINGDLL_WEBVIEW</define>
-        <define>WX_WEB_EXTENSIONS_DIRECTORY="$(PLUGINS_INST_DIR)/web-extensions"</define>
+        <define>$(webviewdll_ext_dir_define)</define>
         <sources>$(WEBVIEW_SRC)</sources>
         <library>coredll</library>
         <library>basedll</library>

build/bakefiles/plugins.bkl

@@ -11,10 +11,12 @@
         <ldlibs>$(EXTRALIBS_SDL)</ldlibs>
     </wx-base-plugin>
 
+    <if cond="FORMAT=='autoconf'">
         <wx-base-plugin id="webkit2_ext" cond="USE_WEBVIEW_WEBKIT2=='1'">
             <sources>$(WEBVIEW_WEBKIT2_EXTENSION_SRC)</sources>
             <ldlibs>$(EXTRALIBS_WEBVIEW)</ldlibs>
             <install-to>$(PLUGINS_INST_DIR)/web-extensions</install-to>
         </wx-base-plugin>
+    </if>
 
 </makefile>