-fcommon for gcc 10 minimal support

Author: DvirDukhan

.circleci/config.yml

@@ -79,6 +79,7 @@ commands:
           command: |
             git submodule update --init opt/readies
             ./opt/readies/bin/getpy3
+            ./opt/readies/bin/getgcc --modern
 
   setup-build-system:
     steps:

CMakeLists.txt

@@ -22,7 +22,7 @@ ENDIF()
 
 #----------------------------------------------------------------------------------------------
 
-SET(CMAKE_CC_COMMON_FLAGS "-fPIC")
+SET(CMAKE_CC_COMMON_FLAGS "-fPIC -fcommon")
 IF (USE_PROFILE)
     SET(CMAKE_CC_COMMON_FLAGS "${CMAKE_CC_COMMON_FLAGS} -g -ggdb -fno-omit-frame-pointer")
 ENDIF()