[Bug modula2/107234] New: Format error in m2pp.cc (m2pp_integer_cst)

["ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107234

            Bug ID: 107234
           Summary: Format error in m2pp.cc (m2pp_integer_cst)
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: modula2
          Assignee: gaius at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
            Target: *-*-solaris2.11

Created attachment 53695
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53695&action=edit
Proposed patch

Building the current devel/modula-2 branch on Solaris 11.3 fails:

/vol/gcc/src/hg/master/modula-2/gcc/m2/m2pp.cc: In function 'void
m2pp_integer_cst(pretty*, tree)':
/vol/gcc/src/hg/master/modula-2/gcc/m2/m2pp.cc:2067:26: warning: format '%lu'
expects argument of type 'long unsigned int', but argument 4 has type 'long
long unsigned int' [-Wformat=]
 2067 |   snprintf (val, 100, "%lud", TREE_INT_CST_LOW (t));
      |                        ~~^
      |                          |
      |                          long unsigned int
      |                        %llu

This should use HOST_WIDE_INT_PRINT_UNSIGNED instead of hardcoding a specific
format.