| 1 |
-----BEGIN PGP SIGNED MESSAGE----- |
| 2 |
Hash: SHA256 |
| 3 |
|
| 4 |
On 28/08/12 10:43 AM, Michał Górny wrote: |
| 5 |
> On Tue, 28 Aug 2012 10:10:01 +0200 Tiziano Müller |
| 6 |
> <dev-zero@g.o> wrote: |
| 7 |
> |
| 8 |
>> Am Dienstag, den 28.08.2012, 10:06 +0200 schrieb Michał Górny: |
| 9 |
>>> On Tue, 28 Aug 2012 06:26:02 +0200 Arfrever Frehtes Taifersar |
| 10 |
>>> Arahesis <arfrever.fta@×××××.com> wrote: |
| 11 |
>>> |
| 12 |
>>>> 2012-08-28 00:19:28 Michał Górny napisał(a): |
| 13 |
>>>>> --- /dev/null +++ b/gx86/eclass/boost-utils.eclass @@ -0,0 |
| 14 |
>>>>> +1,43 @@ +# Copyright 1999-2012 Gentoo Foundation +# |
| 15 |
>>>>> Distributed under the terms of the GNU General Public |
| 16 |
>>>>> License v2 +# $Header: $ + +if [[ ! ${_BOOST_ECLASS} ]]; |
| 17 |
>>>>> then + +# @ECLASS: boost-utils.eclass +# @MAINTAINER: +# |
| 18 |
>>>>> mgorny@g.o |
| 19 |
>>>> |
| 20 |
>>>> It is better to copy list of maintainers from |
| 21 |
>>>> gentoo-x86/dev-libs/boost/metadata.xml. |
| 22 |
>>>> |
| 23 |
>>>>> +# @BLURB: helper functions for packages using Boost C++ |
| 24 |
>>>>> library +# @DESCRIPTION: +# Helper functions to be used |
| 25 |
>>>>> when building packages using the Boost C++ +# library |
| 26 |
>>>>> collection. + +case ${EAPI:-0} in + 0|1|2|3|4) ;; + *) die |
| 27 |
>>>>> "${ECLASS}.eclass API in EAPI ${EAPI} not yet established." |
| 28 |
>>>>> +esac |
| 29 |
>>>> |
| 30 |
>>>> Please accept all EAPIs. |
| 31 |
>>> |
| 32 |
>>> These are EAPIs which are allowed throughout the tree, sorry. |
| 33 |
>>> Feel free to ping Council about adding non-standard EAPIs to |
| 34 |
>>> eclasses. |
| 35 |
>>> |
| 36 |
>>>>> +inherit versionator + +# @FUNCTION: |
| 37 |
>>>>> boost-utils_get_best_slot +# @DESCRIPTION: +# Get newest |
| 38 |
>>>>> SLOT (major version) of Boost. +boost-utils_get_best_slot() |
| 39 |
>>>>> { + local pkg=dev-libs/boost + local atom=$(best_version |
| 40 |
>>>>> ${pkg}) + get_version_component_range 1-2 ${atom#${pkg}} |
| 41 |
>>>>> +} + +# @FUNCTION: boost-utils_get_includedir +# |
| 42 |
>>>>> @DESCRIPTION: +# Get correct includedir for best Boost |
| 43 |
>>>>> version. Outputs the sole path +# (without -I). |
| 44 |
>>>>> +boost-utils_get_includedir() { + local |
| 45 |
>>>>> slot=$(boost-utils_get_best_slot) + has "${EAPI:-0}" 0 1 2 |
| 46 |
>>>>> && ! use prefix && EPREFIX= + + echo -n |
| 47 |
>>>>> "${EPREFIX}/usr/include/boost-${slot/./_}" +} |
| 48 |
>>>> |
| 49 |
>>>> There needs to be a way to specify maximal accepted slot of |
| 50 |
>>>> Boost. Examples of some possibilities: * |
| 51 |
>>>> BOOST_MAX_SLOT="1.49" global variable * '--max 1.49' |
| 52 |
>>>> arguments for boost-utils_get_* functions |
| 53 |
>>> |
| 54 |
>>> I'd rather wait with that till Tiziano expresses his opinion. |
| 55 |
>>> I think the policy ought to be 'always prefer newest version' |
| 56 |
>>> but I guess that's hard with boost. |
| 57 |
>>> |
| 58 |
>> |
| 59 |
>> one of the points of having a slotted boost (besides solving the |
| 60 |
>> rebuild when API/ABI breakages occur) is that a package may also |
| 61 |
>> use an older boost slot (currently it only would make sense if |
| 62 |
>> we'd backport the glibc-2.16 patches but that's a different |
| 63 |
>> story). So I'd prefer if we'd have a BOOST_MAX_SLOT variable. |
| 64 |
> |
| 65 |
> Do we want to support using random old versions of boost then or |
| 66 |
> just the newest supported SLOT? If the latter, we could get away |
| 67 |
> without using best_version, and just request devs to depend on |
| 68 |
> specific boost slot then. |
| 69 |
> |
| 70 |
|
| 71 |
IIRC from comments on IRC, the idea with boost is that "newest |
| 72 |
available" is what is recommended to be used, but obviously "newest |
| 73 |
supported by ebuild" would take precedence, if a package can't be |
| 74 |
built against a newer boost. |
| 75 |
|
| 76 |
Otherwise why would we bother to slot in the first place? |
| 77 |
|
| 78 |
-----BEGIN PGP SIGNATURE----- |
| 79 |
Version: GnuPG v2.0.19 (GNU/Linux) |
| 80 |
|
| 81 |
iF4EAREIAAYFAlA82acACgkQ2ugaI38ACPAc0gD+Ohokg0d6MAikZfLsyenyBnb6 |
| 82 |
PMIRVUI3VtHXcOz1cG4BALV9qTK1qSSUnNenRjjJxktdZ0f1Jatb69R+x9JXVM2m |
| 83 |
=cIfW |
| 84 |
-----END PGP SIGNATURE----- |
Archives