#16274: include system pkgconfig path
-------------------------------------+-------------------------------------
Reporter: vbraun | Owner:
Type: defect | Status: needs_review
Priority: blocker | Milestone: sage-6.2
Component: build | Resolution:
Keywords: | Merged in:
Authors: Volker Braun | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vbraun/include_system_pkgconfig_path|
ef9b2fb4529b6ce007f3b1d96dd8ecb968ae2ee3
Dependencies: | Stopgaps:
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Comment (by leif):
Replying to [comment:19 leif]:
> It's also unclear to me whether that solves problems with R (?) on
systems where there isn't a system-wide `pkg-config`.
>
> (I guess if R sees there's a `pkg-config`, it relies on it, and only
otherwise tries to find libraries by itself. But that's just a guess, and
it's probably up to the Darwinist reviewers to check that...)
Hmmm, the only difference I see on a MacOS X system without a system-wide
`pkg-config` is:
{{{
92c92
< checking for pkg-config... no
---
> checking for pkg-config... /Users/leif/Sage/sage-6.2.beta7/local/bin
/pkg-config
497c497,498
< configure: not checking for cairo as pkg-config is not present
---
> checking whether pkg-config knows about cairo and pango... no
> checking whether pkg-config knows about cairo... no
}}}
So apparently R does rely on `pkg-config`, and ''doesn't'' try to find
libraries / packages by other means if there's no `pkg-config` at all.
Still, it would be best to tell `pkgconf` also which ''system folders'' to
search (in case there's no system-wide `pkg-config`), but that's even more
kind of reinventing the wheel; the by far easiest (and IMHO most straight-
forward) solution is to just make `pkg-config` a Sage prerequisite. (IIRC
there are pre-built binaries available for MacOS X as well; Linux and
SunOS aren't a problem either.)
--
Ticket URL: <http://trac.sagemath.org/ticket/16274#comment:20>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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