packages: Add `native-search-paths' field and honor it.

* guix/packages.scm (<search-path-specification>): New record type.
  (search-path-specification->sexp): New procedure.
  (<package>)[native-search-paths]: New field.
  (package-derivation): Accumulate the search paths, and pass them
  as #:search-paths toe BUILDER.
* guix/build-system/gnu.scm (gnu-build): Add #:search-paths.  Compute
  `implicit-search-paths'.  Pass #:search-paths in BUILDER.
* guix/build-system/perl.scm (perl-build): Add #:search-paths, pass it
  to BUILDER with the search paths of PERL.
* guix/build-system/cmake.scm (cmake-build): Add #:search-paths, pass it
  to BUILDER.
* guix/build-system/trivial.scm (trivial-build): Add #:search-paths,
  ignore it.
* guix/build/gnu-build-system.scm (set-paths): Add #:search-paths.
  Remove explicit settings of CPATH, LIBRARY_PATH, and PKG_CONFIG_PATH.
  Instead, walk SEARCH-PATHS and call `set-path-environment-variable'
  for them.
* guix/build/perl-build-system.scm (perl-build): Remove PERL5LIB setting.
* tests/packages.scm ("search paths"): New test.
* gnu/packages/bootstrap.scm (%bootstrap-guile)[raw]: Add
  #:search-paths.
  (%bootstrap-gcc): Add `native-search-paths' field.
* gnu/packages/perl.scm (perl): Likewise.
* gnu/packages/pkg-config.scm (pkg-config): Likewise.
* gnu/packages/glib.scm (intltool): Remove `arguments'.
* gnu/packages/avahi.scm (avahi): Remove #:phases.

1 files changed, 0 insertions, 12 deletions

diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index fdcc9bdc31..7ff9ede22b 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -142,18 +142,6 @@ dynamic loading, and an object system.")
               (base32
                "0r1vkvy5xzqk01yl6a0xlrry39bra24alkrx6279b77hc62my7jd"))))
     (build-system gnu-build-system)
-    (arguments
-     '(#:phases (alist-cons-before
-                 'configure 'set-perl-path
-                 (lambda* (#:key inputs #:allow-other-keys)
-                   ;; FIXME: Remove this phase when proper support for search
-                   ;; paths is available.
-                   (let ((xml-parser (assoc-ref inputs "perl-xml-parser")))
-                     (setenv "PERL5LIB"
-                             (string-append xml-parser
-                                            "/lib/perl5/site_perl"))
-                     #t))
-                 %standard-phases)))
     (native-inputs `(("pkg-config" ,pkg-config)))
     (propagated-inputs
      `(("gettext" ,guix:gettext)