https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121629
Gaius Mulley <gaius at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2025-08-21
Ever confirmed|0 |1
--- Comment #1 from Gaius Mulley <gaius at gcc dot gnu.org> ---
A followup proposal concludes in:
https://lists.nongnu.org/archive/html/gm2/2025-04/msg00022.html
To summarise:
The m2 search path would include:
$(includedir)/m2
in the case of:
$ gm2 hello.mod
and in the case of:
$ gm2 -fpim hello.mod
$(includedir)/m2/m2pim:$(includedir)/m2
it seems that gm2 needs to support local projects, installed
projects and gcc version specific libraries.
Current state of play
=====================
Currently -fpim appends
$(gm2 --print-file-name=)m2/m2pim
to the m2 module search path.
Also currently -flibs=foo appends
$(gm2 --print-file-name=)m2/foo
to the module search path.
Note that the gm2 driver program will append
$(gm2 --print-file-name=)m2/m2iso
to the end of the m2 search path.
Proposed change
===============
The path $(includedir)/m2
is appended to the m2 search path.
In the case for
$ gm2 -fpim
or
$ gm2 -flibs=pim
The path $(includedir)/m2/m2pim is appended to the m2 search path
It is proposed to implement the option:
-fm2-project-stem=bar
which will prepend:
bar/m2
to the search path and if the dialect or library selection is chosen
after the project as in the case:
-fm2-project-stem=bar -fiso
this will result in prepending:
bar/m2/m2iso:bar/m2
to the path.
In summary the general cases are appended last and the dialect specific
will appear first. The precedence will be:
user -I paths, user project paths, global system wide paths, gcc versioned
paths.
