build-system/gnu: Implement cross build. * guix/build-system/gnu.scm (inputs-search-paths): New procedure. (standard-search-paths): Use it. (expand-inputs): New procedure. (standard-inputs): Use it. (standard-cross-packages, standard-cross-inputs, standard-cross-search-paths, gnu-cross-build): New procedures. (gnu-build-system): Set `cross-build' field to `gnu-cross-build'. * gnu/packages/cross-base.scm: Export `cross-gcc', `cross-binutils', and `cross-libc'. * guix/build/gnu-cross-build.scm: New file. * Makefile.am (MODULES): Add it.
gnu: cross-gcc: Set the right search paths. * gnu/packages/cross-base.scm (cross-gcc): Override `search-paths' and `native-search-paths'.
gnu: cross-gcc: Change patch so that `CROSS_LIBRARY_PATH' is honored. * gnu/packages/patches/gcc-cross-environment-variables.patch: Add two hunks, most notably one that changes GCC to honor LIBRARY_PATH_ENV when cross-compiling.
gnu: Add UnRTF. * gnu/packages/unrtf.scm: New file. * Makefile.am (MODULES): Add it.
gnu: libgc: Add 7.2d. * gnu/packages/bdw-gc.scm (libgc-7.2): New variable.
gnu: Add GNU Plotutils. * gnu/packages/plotutils.scm: New file. * Makefile.am (MODULES): Add it.
gnu: Add CVS. * gnu/packages/version-control.scm (cvs): New variable.
gnu: Add strace. * gnu/packages/linux.scm (strace): New variable.
gnu: Improve synopses for Linux-related packages. * gnu/packages/linux.scm (util-linux, procps, e2fsprogs): Clarify and shrink synopses.
gnu: automake: Update to 1.13.2. * gnu/packages/autotools.scm (autoconf-wrapper): Wrap `configure' files regardless of the exit code of `autoconf'. Triggered by Automake's `t/am-prog-cc-stdc.sh'. (automake): Update to 1.13.2.
gnu: texinfo: Don't propagate Perl. * gnu/packages/texinfo.scm (texinfo): Don't propagate Perl.
gnu: guile-reader: Install modules in the right place. * gnu/packages/guile.scm (guile-reader): Add `arguments' field.
gnu: Add GNU RCS. * gnu/packages/bazaar.scm: Rename to... * gnu/packages/version-control.scm: ... this. (rcs): New variable. * Makefile.am (MODULES): Adjust accordingly.
gnu: Add Scheme48. * gnu/packages/scheme.scm (scheme48): New variable. * gnu/packages/patches/scheme48-tests.patch: New file. * Makefile.am (dist_patch_DATA): Add it.
gnu: gnupg: Update to 2.0.20. * gnu/packages/gnupg.scm (gnupg): Update to 2.0.20.
gnu: chicken: Clear description. * gnu/packages/scheme.scm (chicken): Remove unneeded part of the description.
gnu: Sync synopses with the Womb. * gnu/packages/bazaar.scm (bazaar): Use synopsis from the Womb. * gnu/packages/gv.scm (gv): Likewise.
gnu: Add CHICKEN. * gnu/packages/scheme.scm (chicken): New variable.
gnu: geiser: Update to 0.4. * gnu/packages/emacs.scm (geiser): Update to 0.4.
gnu: Add GNU Bazaar. * gnu/packages/bazaar.scm: New file. * Makefile.am (MODULES): Add it.