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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug modula2/108182] gm2 driver mishandles target and multilib
 options
Date: Fri, 13 Jan 2023 00:15:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108182

--- Comment #15 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Sandoe from comment #14)
> Created attachment 54261 [details]
> Updated patch that honours the order of include use.
>=20
> This is V5 ...
>=20
> ... so here we collect the incoming search paths and then apply (most of)
> the rules in=20
> https://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html#Directory-Optio=
ns
>=20
> ... TODO:
>  - eliminate duplicate -I entries that have a system one
>  - figure out the right way to implement -nostdinc=20
>  - handle -idirafter

add this missed hunk.

diff --git a/gcc/m2/gm2-lang.cc b/gcc/m2/gm2-lang.cc
index 073d1dd55db..cd59784d7b2 100644
--- a/gcc/m2/gm2-lang.cc
+++ b/gcc/m2/gm2-lang.cc
@@ -513,6 +513,7 @@ add_m2_import_paths (const char *liblist)
     {
       char *libname =3D (char *) alloca (6);
       strncpy (libname, liblist, 5);
+      libname[5] =3D 0;
       add_one_import_path (libname);
       liblist +=3D 5;
       if (*liblist =3D=3D ',')=