software/theia: use same gcc config as erp5 WIP

So that parts are shared when we install ERP5 in theia

software/theia/software.cfg

@@ -15,6 +15,7 @@ extends =
    ../../stack/monitor/buildout.cfg
    ./gowork.cfg
    ./buildout.hash.cfg
+   ../../component/defaults.cfg
 # this gowork.cfg includes the one from caddy, because they share the only gowork
 # workspace (not intentionnaly, as far as I see there's only one gowork per SR)
 # it is included after caddy, otherwise only caddy is installed. The problem of this
@@ -29,6 +30,11 @@ parts =
 # default for slapos-standalone
 shared-part-list =
 
+# We keep the gcc part in sync with the one from erp5 software, so that when we install
+# erp5 inside theia's slapos parts can be shared.
+[gcc]
+max_version = 0
+
 
 [nodejs]
 <= nodejs-10.19.0