[Bug fortran/47485] gfortran -M output is incorrect when -MT option is used

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47485

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jerry DeLisle <jvdeli...@gcc.gnu.org>:

https://gcc.gnu.org/g:e41a5a2a0832509fa1c0b7cab0c8001fadbd23d4

commit r15-7365-ge41a5a2a0832509fa1c0b7cab0c8001fadbd23d4
Author: Jerry DeLisle <jvdeli...@gcc.gnu.org>
Date:   Tue Feb 4 17:21:42 2025 -0800

    Fortran: Fix PR 47485.

    The -MT and -MQ options should replace the default target in the
    generated dependency file. deps_add_target needs to be called before
    cpp_read_main_file, otherwise the original object name is added.

    Contributed by Vincent Vanlaer <vincen...@volkihar.be>

            PR fortran/47485

    gcc/fortran/ChangeLog:

            * cpp.cc: fix -MT/-MQ adding additional target instead of
            replacing the default.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/dependency_generation_1.f90: New test.

    Signed-off-by: Vincent Vanlaer <vincen...@volkihar.be>