On 3/9/24 2:59 PM, Mike Gilbert wrote:
> On Tue, Mar 5, 2024 at 12:16 PM Michał Górny <mgo...@gentoo.org> wrote:
>>
>> Make LTO filtering local to the compilation code. This avoids disabling
>> LTO for non-Python parts of an ebuild.
>>
>> Signed-off-by: Michał Górny <mgo...@gentoo.org>
>> ---
>> eclass/distutils-r1.eclass | 4 ++++
>> 1 file changed, 4 insertions(+)
>>
>> diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
>> index ee1dcef24ff6..134cb39f276a 100644
>> --- a/eclass/distutils-r1.eclass
>> +++ b/eclass/distutils-r1.eclass
>> @@ -1828,6 +1828,10 @@ distutils-r1_run_phase() {
>> # Rust extensions are incompatible with C/C++ LTO compiler
>> # see e.g. https://bugs.gentoo.org/910220
>> if has cargo ${INHERITED}; then
>> + local x
>> + for x in $(all-flag-vars); do
>> + local -x "${x}=${!x}"
>> + done
>> filter-lto
>> fi
>> fi
>
> I had never thought to loop over all-flag-vars like this. Added to my
> mental code repo, thanks!To be fair, when I suggested this in review of the patch it wasn't my idea either. I shamelessly stole it from... flag-o-matic.eclass, where it is used by filter-flags, replace-flags, is-flagq, strip-flags, get-flag. filter-flags in turn is used by filter-lto, hence all-flag-vars is the direct API that governs what variables filter-lto will modify. It seemed fitting to single-source that information. -- Eli Schwartz
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