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build: GnuTLS is now a hard dependency.

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Discussed as part of <https://bugs.gnu.org/25975>.

* configure.ac: Check for (gnutls) and error out if it's missing.
* doc/guix.texi (Requirements): Move GnuTLS from optional to required.
(Substitutes): Remove footnote about the need for GnuTLS.
This commit is contained in:
Ludovic Courtès 2017-03-12 00:37:33 +01:00
parent 5a717a95b3
commit 1dbe3a8db0
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2 changed files with 13 additions and 12 deletions
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9
configure.ac
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@ -91,7 +91,14 @@ dnl Installation directory for .scm and .go files.
guilemoduledir="${datarootdir}/guile/site/$GUILE_EFFECTIVE_VERSION"
AC_SUBST([guilemoduledir])
dnl guile-json is used for the PyPI package importer
dnl The GnuTLS bindings are necessary for substitutes over HTTPS and for 'guix
dnl pull', among other things.
GUILE_MODULE_AVAILABLE([have_gnutls], [(gnutls)])
if test "x$have_gnutls" != "xyes"; then
AC_MSG_ERROR([The Guile bindings of GnuTLS are missing; please install them.])
fi
dnl Guile-JSON is used in various places.
GUILE_MODULE_AVAILABLE([have_guile_json], [(json)])
AM_CONDITIONAL([HAVE_GUILE_JSON], [test "x$have_guile_json" = "xyes"])

16
doc/guix.texi
View file

@ -544,21 +544,16 @@ GNU Guix depends on the following packages:
@itemize
@item @url{http://gnu.org/software/guile/, GNU Guile}, version 2.0.7 or later;
@item @url{http://gnupg.org/, GNU libgcrypt};
@item
@uref{http://gnutls.org/, GnuTLS}, specifically its Guile bindings
(@pxref{Guile Preparations, how to install the GnuTLS bindings for
Guile,, gnutls-guile, GnuTLS-Guile});
@item @url{http://www.gnu.org/software/make/, GNU Make}.
@end itemize
The following dependencies are optional:
@itemize
@item
Installing @uref{http://gnutls.org/, GnuTLS-Guile} will allow you to
access @code{https} URLs for substitutes, which is highly recommended
(@pxref{Substitutes}). It also allows you to access HTTPS URLs with the
@command{guix download} command (@pxref{Invoking guix download}), the
@command{guix import pypi} command, and the @command{guix import cpan}
command. @xref{Guile Preparations, how to install the GnuTLS bindings
for Guile,, gnutls-guile, GnuTLS-Guile}.
@item
Installing
@url{http://savannah.nongnu.org/projects/guile-json/, Guile-JSON} will
@ -2003,8 +1998,7 @@ or to client tools such as @command{guix package}
(@pxref{client-substitute-urls,, client @option{--substitute-urls}
option}).
Substitute URLs can be either HTTP or HTTPS@footnote{For HTTPS access,
the Guile bindings of GnuTLS must be installed. @xref{Requirements}.}
Substitute URLs can be either HTTP or HTTPS.
HTTPS is recommended because communications are encrypted; conversely,
using HTTP makes all communications visible to an eavesdropper, who
could use the information gathered to determine, for instance, whether