[Bug modula2/101388] Unconditional use of __MAX_BAUD

["gaiusmod2 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101388

--- Comment #1 from Gaius Mulley <gaiusmod2 at gmail dot com> ---
"ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> writes:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101388
>
>             Bug ID: 101388
>            Summary: Unconditional use of __MAX_BAUD
>            Product: gcc
>            Version: 12.0
>             Status: UNCONFIRMED
>           Severity: normal
>           Priority: P3
>          Component: modula2
>           Assignee: unassigned at gcc dot gnu.org
>           Reporter: ro at gcc dot gnu.org
>                 CC: gaiusmod2 at gmail dot com
>   Target Milestone: ---
>             Target: *-*-solaris2.11
>
> Building the devel/modula-2 branch on Solaris 11 fails with undefined
> references
> to __MAX_BAUD in two places:
>
> /vol/gcc/src/git/modula-2/gcc/m2/mc-boot-ch/Gtermios.c: In function
> 'termios_GetFlag':
> /vol/gcc/src/git/modula-2/gcc/m2/mc-boot-ch/Gtermios.c:872:27: error:
> '__MAX_BAUD' undeclared (first use in this function)
>        *b = ((t->c_cflag & __MAX_BAUD) == __MAX_BAUD);
>                            ^~~~~~~~~~
>
> /vol/gcc/src/git/modula-2/gcc/m2/gm2-libs-ch/termios.c: In function
> 'termios_GetFlag':
> /vol/gcc/src/git/modula-2/gcc/m2/gm2-libs-ch/termios.c:877:27: error:
> '__MAX_BAUD' undeclared (first use in this function)
>   877 |       *b = ((t->c_cflag & __MAX_BAUD) == __MAX_BAUD);
>       |                           ^~~~~~~~~~
> __MAX_BAUD seems to be Linux/glibc specific, but the current problem is
> obviously
> cause by a wrong guard which checks for defined(MAX) instead of
> defined(__MAX_BAUD).
>
> Correcting this lets the build continue.

many thanks for the report - now fixed in the git repro,


regards,
Gaius