61/66: gnu: cross-base: Make it aware of non-Linux (ie. Hurd) systems.

[Manolis Fragkiskos Ragkousis]

phant0mas pushed a commit to branch wip-hurd
in repository guix.

commit fea6dde1fde45aedd3d1663f830a23219ff7c93b
Author: Marek Benc <address@hidden>
Date:   Thu Feb 5 17:01:14 2015 +0100

    gnu: cross-base: Make it aware of non-Linux (ie. Hurd) systems.
    
    * gnu/packages/cross-base.scm (cross-gcc-arguments): Make 'set-cross-path
      aware of the Hurd.
    
    Signed-off-by: Manolis Ragkousis <address@hidden>
---
 gnu/packages/cross-base.scm |   30 ++++++++++++++++++++++++------
 1 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 18a2512..e54bee4 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -147,21 +147,39 @@ may be either a libc package or #f.)"
              `(alist-cons-before
                'configure 'set-cross-path
                (lambda* (#:key inputs #:allow-other-keys)
-                 ;; Add the cross Linux headers to CROSS_CPATH, and remove them
+                 ;; Add the cross kernel headers to CROSS_CPATH, and remove 
them
                  ;; from CPATH.
                  (let ((libc  (assoc-ref inputs "libc"))
                        (linux (assoc-ref inputs
-                                         "libc/linux-headers")))
+                                         "libc/linux-headers"))
+                       (mach  (assoc-ref inputs
+                                         "libc/cross-gnumach-headers"))
+                       (hurd  (assoc-ref inputs
+                                         "libc/cross-hurd-headers"))
+                       (hurd-minimal (assoc-ref inputs
+                                                "libc/cross-hurd-minimal")))
                    (define (cross? x)
                      ;; Return #t if X is a cross-libc or cross Linux.
                      (or (string-prefix? libc x)
-                         (string-prefix? linux x)))
+                         (if linux        (string-prefix? linux x) #f)
+                         (if hurd         (string-prefix? hurd  x) #f)
+                         (if mach         (string-prefix? mach  x) #f)
+                         (if hurd-minimal (string-prefix? hurd-minimal x) #f)))
 
                    (setenv "CROSS_CPATH"
-                           (string-append libc "/include:"
-                                          linux "/include"))
+                           (string-append libc "/include"
+                            (if linux
+                                (string-append ":" linux "/include")
+                                "")
+                            (if hurd
+                                (string-append ":" hurd  "/include"
+                                               ":" mach  "/include")
+                                "")))
                    (setenv "CROSS_LIBRARY_PATH"
-                           (string-append libc "/lib"))
+                           (string-append libc "/lib"
+                            (if hurd-minimal
+                                (string-append ":" hurd-minimal "/lib")
+                                "")))
 
                    (let ((cpath   (search-path-as-string->list
                                    (getenv "CPATH")))