GNU bug report logs - #71022
[PATCH] configure.ac: Set default value for the 'prefix' variable.

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Message #23 received at 71022 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: 71022 <at> debbugs.gnu.org
Cc: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>,
 Simon Tournier <zimon.toutoune <at> gmail.com>,
 Vagrant Cascadian <vagrant <at> debian.org>, ludo <at> gnu.org,
 Efraim Flashner <efraim <at> flashner.co.il>, Ricardo Wurmus <rekado <at> elephly.net>,
 Andreas Enge <andreas <at> enge.fr>, Attila Lendvai <attila <at> lendvai.name>,
 Richard Sent <richard <at> freakingpenguin.com>,
 Janneke Nieuwenhuizen <janneke <at> gnu.org>
Subject: [PATCH v2] configure.ac: Set default value for the 'prefix' variable.
Date: Wed, 22 May 2024 08:51:57 -0400

The Guix standard configuration uses a localstatedir of /var and a sysconfdir
of /etc.  To ease things for everyone, make the default values match that
standard expected configuration.  See
<https://lists.gnu.org/archive/html/guix-devel/2024-05/msg00003.html> for a
related discussion.

* configure.ac: Default $prefix to '' unless already set.
* doc/contributing.texi (Building from Git): Streamline doc.
* doc/guix-cookbook.texi (Guix environment via direnv): Likewise.

Change-Id: I23cd12b58a842d246fbc9fdc740311c573eb0212
---

Changes in v2:
 - combine comments and default directory variables manipulation

 configure.ac           |  8 +++++---
 doc/contributing.texi  | 15 +--------------
 doc/guix-cookbook.texi |  2 +-
 3 files changed, 7 insertions(+), 18 deletions(-)

diff --git a/configure.ac b/configure.ac
index 8c3a06da37..c7b61d56a7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,9 +73,11 @@ AC_ARG_ENABLE([daemon],
   [guix_build_daemon="$enableval"],
   [guix_build_daemon="yes"])
 
-# Prepare a version of $localstatedir & co. that does not contain references
-# to shell variables.
-guix_prefix="`eval echo $prefix | sed -e"s|NONE|/usr/local|g"`"
+dnl Prepare a version of $localstatedir & co. that does not contain references
+dnl to shell variables.  Also set some sane default directory variables for
+dnl use with the Guix.  This also causes localstatedir to be /var and
+dnl sysconfdir to be /etc.
+test "$prefix" = NONE && prefix=
 guix_localstatedir="`eval echo $localstatedir | sed -e "s|NONE|$guix_prefix|g"`"
 guix_sysconfdir="`eval echo $sysconfdir | sed -e "s|NONE|$guix_prefix|g"`"
 guix_sbindir="`eval echo $sbindir | sed -e "s|NONE|$guix_prefix|g"`"
diff --git a/doc/contributing.texi b/doc/contributing.texi
index 66f4e86d0a..539b4dd0d3 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -235,7 +235,7 @@ Building from Git
 Then, run:
 
 @example
-./configure --localstatedir=/var --sysconfdir=/etc
+./configure
 @end example
 
 @noindent
@@ -246,19 +246,6 @@ Building from Git
 important to pass the right @code{localstatedir} and @code{sysconfdir}
 values, which get recorded in the @code{(guix config)} Guile module.
 
-When configuring Guix on a system that already has a Guix installation,
-be sure to specify the same state directory as the existing installation
-using the @option{--localstatedir} option of the @command{configure}
-script (@pxref{Directory Variables, @code{localstatedir},, standards,
-GNU Coding Standards}).  Usually, this @var{localstatedir} option is set
-to the value @file{/var}.  The @command{configure} script protects
-against unintended misconfiguration of @var{localstatedir} so you do not
-inadvertently corrupt your store (@pxref{The Store}).  The configuration
-directory should also be configured by setting the @option{--sysconfdir}
-option to the @file{/etc} value, which is the location used by Guix to
-store for example the access control list of authorized machines and the
-definition of offload machines.
-
 Finally, you can build Guix and, if you feel so inclined, run the tests
 (@pxref{Running the Test Suite}):
 
diff --git a/doc/guix-cookbook.texi b/doc/guix-cookbook.texi
index 3bc63cba7a..cbd088632a 100644
--- a/doc/guix-cookbook.texi
+++ b/doc/guix-cookbook.texi
@@ -5076,7 +5076,7 @@ Guix environment via direnv
     # Predefine configure flags.
     configure()
     @{
-        ./configure --localstatedir=/var --prefix=
+        ./configure
     @}
     export_function configure
 

base-commit: 5a624adfd7b14c3717237d137bd0766c77f0f570
-- 
2.41.0

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