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Re: [PATCH, Ada] Makefile patches from initial RISC-V cross/native build.


On Thu, Aug 2, 2018 at 1:44 AM, Pierre-Marie de Rodat
<derodat@adacore.com> wrote:
> On 07/06/2018 01:45 AM, Jim Wilson wrote:
>>
>> These are some patches I needed to complete my cross build of a native
>> riscv linux Ada compiler.  Some paths were different on the build machine
>> and host machine.  I needed to pass options into gnatmake to work around
>> this,
>> and that required fixing some makefile rules to use $(GNATMAKE) instead of
>> calling gnatmake directly.
>
>
> At AdaCore, we realized that this patch broke our canadian builds: in the
> cases your patch involved, the intent is to call the build toolchain, not
> the host one (to which GNATMAKE expands to).
>
> Given that you described this change as a workaround for cross-machine path
> issues, I was wondering: do you still need this? If not, we should probably
> revert it right now, otherwise we should investigate why you needed it in
> the first place. What do you think?

I only needed it for the first canadian cross build.  If it is causing
problems for you it can be dropped.  If I need it again, it is easy
enough to write again.

I ran into a problem where the search paths were wrong when running
the canadian cross built compiler for the native build, and I had to
add something like -cargs -L$installdir/lib to gnatmake to make it
work, but it is possible I did something wrong.  These canadian cross
builds aren't something I do often, so I might have made a mistake.
Also, RISC-V is a new target, so there are lots of things that are
just a little broken and have to be worked around.  This might have
been related to one of those problems.

Jim


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