~ruther/guix-local

1f14e25c1969a93908288cb302a572f3cbbaa478 — Ludovic Courtès 6 years ago d074f73
doc: Add "Packages for C Development" section.

Suggested by Bruno Haible <bruno@clisp.org>
in <https://bugs.gnu.org/41038>.

* doc/guix.texi (Packages for C Development): New node.
(Application Setup)[The GCC toolchain]: Empty and refer to it.
1 files changed, 27 insertions(+), 16 deletions(-)

M doc/guix.texi
M doc/guix.texi => doc/guix.texi +27 -16
@@ 1768,22 1768,11 @@ can do so by running Emacs with the @code{--no-site-file} option

@subsection The GCC toolchain

@cindex GCC
@cindex ld-wrapper

Guix offers individual compiler packages such as @code{gcc} but if you
are in need of a complete toolchain for compiling and linking source
code what you really want is the @code{gcc-toolchain} package.  This
package provides a complete GCC toolchain for C/C++ development,
including GCC itself, the GNU C Library (headers and binaries, plus
debugging symbols in the @code{debug} output), Binutils, and a linker
wrapper.

The wrapper's purpose is to inspect the @code{-L} and @code{-l} switches
passed to the linker, add corresponding @code{-rpath} arguments, and
invoke the actual linker with this new set of arguments.  You can instruct the
wrapper to refuse to link against libraries not in the store by setting the
@code{GUIX_LD_WRAPPER_ALLOW_IMPURITIES} environment variable to @code{no}.
@c XXX: The contents of this section were moved under
@c ``Development'', since it makes more sense there and is not specific
@c foreign distros.  Remove it from here eventually?
@xref{Packages for C Development}, for information on packages for C/C++
development.

@node Upgrading Guix
@section Upgrading Guix


@@ 4681,6 4670,7 @@ easily distributed to users who do not run Guix.
@menu
* Invoking guix environment::   Setting up development environments.
* Invoking guix pack::          Creating software bundles.
* Packages for C Development::  Working with C code with Guix.
@end menu

@node Invoking guix environment


@@ 5344,6 5334,27 @@ In addition, @command{guix pack} supports all the common build options
(@pxref{Common Build Options}) and all the package transformation
options (@pxref{Package Transformation Options}).

@node Packages for C Development
@section Packages for C Development

@cindex GCC
@cindex ld-wrapper
@cindex linker wrapper
@cindex toolchain, for C development

If you need a complete toolchain for compiling and linking C or C++
source code, use the @code{gcc-toolchain} package.  This package
provides a complete GCC toolchain for C/C++ development, including GCC
itself, the GNU C Library (headers and binaries, plus debugging symbols
in the @code{debug} output), Binutils, and a linker wrapper.

The wrapper's purpose is to inspect the @code{-L} and @code{-l} switches
passed to the linker, add corresponding @code{-rpath} arguments, and
invoke the actual linker with this new set of arguments.  You can instruct the
wrapper to refuse to link against libraries not in the store by setting the
@code{GUIX_LD_WRAPPER_ALLOW_IMPURITIES} environment variable to @code{no}.



@c *********************************************************************
@node Programming Interface