[Bug d/109108] d: Undefined reference to lambda in private enum

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109108

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Iain Buclaw
<ibuc...@gcc.gnu.org>:

https://gcc.gnu.org/g:bd109dee471aa83f2397a6b56d074583c48475c7

commit r11-10575-gbd109dee471aa83f2397a6b56d074583c48475c7
Author: Iain Buclaw <ibuc...@gdcproject.org>
Date:   Tue Mar 14 13:16:11 2023 +0100

    d: Fix undefined reference to lambda defined in private enum [PR109108]

    Previously lambdas were connected to the module they were defined in.
    Now they are emitted into every referencing compilation unit, and are
    given one-only linkage.

            PR d/109108

    gcc/d/ChangeLog:

            * decl.cc (get_symbol_decl): Set DECL_LAMBDA_FUNCTION_P on function
            literals.
            (start_function): Unconditionally unset DECL_EXTERNAL.
            (set_linkage_for_decl): Give lambda functions one-only linkage.

    gcc/testsuite/ChangeLog:

            * gdc.dg/torture/torture.exp (srcdir): New proc.
            * gdc.dg/torture/imports/pr109108.d: New test.
            * gdc.dg/torture/pr109108.d: New test.

    (cherry picked from commit 423d34f61c43e400f0d5b837fe93c83963b2ecdd)