Changed linker command line for compatibility with Eclipse 2022-06

Author: dc42

.cproject

@@ -70,7 +70,7 @@
 								<inputType id="cdt.managedbuild.tool.gnu.cpp.compiler.input.1830564814" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.input"/>
 							</tool>
 							<tool id="cdt.managedbuild.tool.gnu.cross.c.linker.1625496096" name="Cross GCC Linker" superClass="cdt.managedbuild.tool.gnu.cross.c.linker"/>
-							<tool commandLinePattern="${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} -Wl,--start-group &quot;${workspace_loc}/CoreESP8266/Release/cores/esp8266/heap.o&quot; ${INPUTS} -Wl,--end-group" id="cdt.managedbuild.tool.gnu.cross.cpp.linker.2135494508" name="Cross G++ Linker" superClass="cdt.managedbuild.tool.gnu.cross.cpp.linker">
+							<tool commandLinePattern="${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} -Wl,--start-group &quot;${workspace_loc}/CoreESP8266/Release/cores/esp8266/heap.o&quot; ${INPUTS} ${EXTRA_FLAGS} -Wl,--end-group" id="cdt.managedbuild.tool.gnu.cross.cpp.linker.2135494508" name="Cross G++ Linker" superClass="cdt.managedbuild.tool.gnu.cross.cpp.linker">
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="gnu.cpp.link.option.paths.755420080" name="Library search path (-L)" superClass="gnu.cpp.link.option.paths" useByScannerDiscovery="false" valueType="libPaths">
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/CoreESP8266/Release}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc}/LwipESP8266/Release&quot;"/>
@@ -193,7 +193,7 @@
 								<inputType id="cdt.managedbuild.tool.gnu.cpp.compiler.input.1699540131" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.input"/>
 							</tool>
 							<tool id="cdt.managedbuild.tool.gnu.cross.c.linker.88112554" name="Cross GCC Linker" superClass="cdt.managedbuild.tool.gnu.cross.c.linker"/>
-							<tool commandLinePattern="${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} -Wl,--start-group &quot;${workspace_loc}/CoreESP8266/Release/cores/esp8266/heap.o&quot; ${INPUTS} -Wl,--end-group" id="cdt.managedbuild.tool.gnu.cross.cpp.linker.1400319925" name="Cross G++ Linker" superClass="cdt.managedbuild.tool.gnu.cross.cpp.linker">
+							<tool commandLinePattern="${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} -Wl,--start-group &quot;${workspace_loc}/CoreESP8266/Release/cores/esp8266/heap.o&quot; ${INPUTS} ${EXTRA_FLAGS} -Wl,--end-group" id="cdt.managedbuild.tool.gnu.cross.cpp.linker.1400319925" name="Cross G++ Linker" superClass="cdt.managedbuild.tool.gnu.cross.cpp.linker">
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="gnu.cpp.link.option.paths.434353686" name="Library search path (-L)" superClass="gnu.cpp.link.option.paths" useByScannerDiscovery="false" valueType="libPaths">
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/CoreESP8266/Release}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc}/LwipESP8266/Release&quot;"/>