Re: [gentoo-user] what test gets done in pcre makefile to find gcc won't work?

[Jude DaShiell]

Ashley,

Thanks much for help you provided.  You should know, as a result of that
help you got me all the way to kernel configuration.

On Sun, 4 Oct 2020, Ashley Dixon wrote:

> Date: Sun, 4 Oct 2020 02:59:18
> From: Ashley Dixon <ash@××××××××××.uk>
> Reply-To: gentoo-user@l.g.o
> To: gentoo-user@l.g.o
> Subject: Re: [gentoo-user] what test gets done in pcre makefile to find gcc
>     won't work?
>
> On Sun, Oct 04, 2020 at 12:47:39AM -0400, Jude DaShiell wrote:
> > I ran emerge-webrsync and agreed to merge some software titles from
> > gentoo.  The first one was pcre and so far as I can tell, all went fine
> > until the makefile tested gcc and found gcc doesn't work.  At that point
> > the emerge errored out.
>
> I think you mean the configure script, not the Makefile?  It is executed in  the
> ebuild with the `econf` wrapper function [1, 2]; its  output  looks  like  this:
>
>         checking for a BSD-compatible install... /usr/bin/install -c
>         checking whether build environment is sane... yes
>         checking for a thread-safe mkdir -p... /bin/mkdir -p
>         [...]
>
> Can you post the full output of emerge?  "The gcc test" is  equivocal;  the  GNU
> configure script does lots of compiler tests, and it  will  be  useful  to  know
> which one fails.
>
> > Now, it's possible everyone is using the systemd profile but I went with
> > the default profile already used for amd64 installs so it could be that
> > profile ran me into this particular error.
>
> I could be very mistaken, but I think that the majority of the Gentoo  community
> uses an OpenRC profile, probably because it's the default. Gentoo supports quite
> a few init systems, if you'd like to have a play and see which one you like  the
> most [3].
>
> > Something else that was strange, I had the gentoo-minimal cd in use and
> > had downloaded a stage3 file and a snapshot.  The package
> > sys-libs/timezone-data did not download in those packages and the handbook
> > provided no instructions on downloading and installing that package before
> > trying to set the local time.  Could it be failure to use systemd profile
> > also brought me this error as well?
>
> Which profile have you chosen?  The Stage 3 tarball consists of a system set for
> a particular profile [4], all of  which  inherit  the  base  @system  [5].   The
> `timezone-data` package is not included in any of  the  default  profile  system
> sets, so it should not be expected to appear in a Stage 3:
>
>         $ shopt -s globstar
>         $ grep timezone-data gentoo/profiles/**/packages
>         # or
>         $ find gentoo/profiles/ -type f -name "packages" -exec grep \
>         > timezone-data {} \;
>
> It should be pulled in a dependency of glibc, providing the `vanilla` flag isn't
> set, but you can just emerge it manually.
>
>         $ equery d timezone-data # add `-a` after `d` for a full list
>          * These packages depend on timezone-data:
>         dev-libs/libical-3.0.8 (sys-libs/timezone-data)
>         sys-libs/glibc-2.31-r6 (!vanilla ? sys-libs/timezone-data)
>
> Anyway, this is independent of the init system you choose.  Have you had a  look
> at [6]?  Find the relevant file in `/usr/share/zoneinfo`  which  corresponds  to
> your timezone,  write  its  relative  path  to  the  `/etc/timezone`  file,  and
> reconfigure the `timezone-data` package.  To steal the example in the  handbook:
>
>         $ ls -l /usr/share/zoneinfo
>         $ echo "Europe/Brussels" > /etc/timezone # Suppose you're in Brussels
>         $ emerge --config sys-libs/timezone-data # Regenerate `/etc/localtime`
>
> [1] https://gitweb.gentoo.org/repo/gentoo.git/tree/dev-libs/libpcre2/libpcre2-10.35.ebuild#n74
> [2] https://devmanual.gentoo.org/function-reference/build-functions/
> [3] https://wiki.gentoo.org/wiki/Comparison_of_init_systems
> [4] https://wiki.gentoo.org/wiki/Stage_tarball#Stage_3
> [5] https://gitweb.gentoo.org/repo/gentoo.git/tree/profiles/base/packages
> [6] https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#Timezone
>
> P.S.  You can examine the contents of `/etc/localtime`, and thus  the  supported
> timezones, with the `zdump` utility from the `timezone-data` package:
>
>         $ zdump /etc/locatime
>         /etc/localtime  Sun Oct  4 07:41:45 2020 BST
>
>

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