[Bug d/102476] d: Options -fmain and -fno-druntime do not work together

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102476

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Iain Buclaw <ibuc...@gcc.gnu.org>:

https://gcc.gnu.org/g:d46a29d919058fb383d19fe35c234fab58286f71

commit r12-3985-gd46a29d919058fb383d19fe35c234fab58286f71
Author: Iain Buclaw <ibuc...@gdcproject.org>
Date:   Fri Sep 24 10:59:47 2021 +0200

    libphobos: Define main function as extern(C) when compiling without D
runtime (PR102476)

    The default supplied main function as read when compiling with `-fmain'
    has extern(D) linkage.  However this does not work when mixing this
    option together with `-fno-druntime'.

            PR d/102476

    gcc/testsuite/ChangeLog:

            * gdc.dg/pr102476.d: New test.

    libphobos/ChangeLog:

            * libdruntime/__main.di: Define main function as extern(C) when
            compiling without D runtime.