[Bug modula2/110002] Using -fcpp only invokes cc1 from pre-configured path $(libexec)

[admin@tho-otto.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110002

--- Comment #3 from Thorsten Otto <admin@tho-otto.de> ---
Created attachment 55745
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55745&action=edit
Possible workaround

I currently use the attached patch to work around this. However it is a bit
hackish as it uses a global variable to access argv[0]. Using GetArgV() does
not seem to work because that module was not yet initialized.