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Re: Help needed for writing a rule
From: |
Kaz Kylheku |
Subject: |
Re: Help needed for writing a rule |
Date: |
Fri, 25 Nov 2022 08:31:51 -0800 |
User-agent: |
Roundcube Webmail/1.4.13 |
On 2022-11-25 06:26, Patrick Begou wrote:
> Hi all,
>
> I'm stuck for several hours in trying to write a rule for managing fortran
> modules. My difficulty is that the Cray compiler requires a module name
> written in upper case.
>
> example: if file is "toto_m.f90", it contains a module called "toto_m" and
> the module file will be "TOTO_M.mod".
>
> How can I write a generic rule for building TOTO_M.mod from toto_m.f90 source
> and put it in the LIB folder ?
>
> Of course,the following lines will not work as the "%" token will be in
> uppercase on the right hand side.
>
> # building only the mod file
> LIB/%_M.mod: %_m.f90
> @echo "building $*_M.mod"
> touch $@
Can you make symbolic links that have the upper case, and feed them to the
compiler?
LIB/%_m.mod: %_m.f90
@echo "building $*_m.mod"
touch $@
ln -sf $@ $$(echo $*_m | tr [a-z] [A-Z]).mod
Here I have a working sample where I use a target-specific assignment to define
a variable called $(UC) which holds the upper-cased stem:
$ make
make: *** No rule to make target 'foo.in', needed by 'foo.out'. Stop.
$ touch foo.in
$ make
making foo.out (upcased as FOO.out)
Contents:
$ cat Makefile
%.out: UC = $$(echo $* | tr [a-z] [A-Z])
%.out: %.in#
@echo "making $*.out (upcased as $(UC).out)"
foo.out: foo.in
The $* is evaluated at the time the target is dispatched, because it's
in a target-specific assignment. The $$ on $$(echo ...) ensures
that we get a literal $(echo ...) passed to the shell during
recipe execution.
Hope I didn't do anything wrong that makes this inapplicable to
your case!
Cheers ...