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From: "miro.kropacek at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/99690] New: gcc/config/m68k/t-mlibs doesn't allow
 extending MULTILIB_EXCEPTIONS
Date: Sat, 20 Mar 2021 20:38:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99690

            Bug ID: 99690
           Summary: gcc/config/m68k/t-mlibs doesn't allow extending
                    MULTILIB_EXCEPTIONS
           Product: gcc
           Version: 7.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: miro.kropacek at gmail dot com
  Target Milestone: ---

gcc/config/m68k/t-mlibs nicely unifies various m68k options and mappings.
However it doesn't allow extending (or overriding) the MULTILIB_EXCEPTIONS
macro the same way the M68K_MLIB_DIRNAMES and M68K_MLIB_OPTIONS does:

# Add subtarget specific options & dirs.
MULTILIB_DIRNAMES +=3D $(M68K_MLIB_DIRNAMES)
MULTILIB_OPTIONS +=3D $(M68K_MLIB_OPTIONS)

Is there a reason for that?=