[Bug target/91130] [9/10 Regression] -MF clashes with -flto on aarch64

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91130

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |schwab at gcc dot gnu.org

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Ok, so I can confirm it's related to D front-end, where the following patch can
paper over that:

diff --git a/gcc/d/lang-specs.h b/gcc/d/lang-specs.h
index 098f0f98b29..d3f41d23c5a 100644
--- a/gcc/d/lang-specs.h
+++ b/gcc/d/lang-specs.h
@@ -23,7 +23,7 @@ along with GCC; see the file COPYING3.  If not see
 {".di", "@d", 0, 1, 0 },
 {"@d",
   "%{!E:d21 %i %(cc1_options) %I %{nostdinc*} %{i*} %{I*} %{J*} \
-    %{H} %{Hd*} %{Hf*} %{MD:-MD %b.deps} %{MMD:-MMD %b.deps} \
+    %{H} %{Hd*} %{Hf*} \
     %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*} \
     %{X:-Xf %b.json} %{Xf*} \
     %{v} %{!fsyntax-only:%(invoke_as)}}", 0, 1, 0 },

So the general issue is that .d files are clasing between D source files and
dependecy files.

Would it be possible for the future to start using the .deps extension,
similarly what D language does?