@@ 168,6 168,31 @@ C_*INCLUDE_PATH."
(cons "LIBRARY_PATH" %gcc-include-paths))
#t))
+(define* (set-cross-path/avr #:key inputs #:allow-other-keys)
+ (match (assoc-ref inputs "libc")
+ ((? string? libc)
+ (define (cross? x)
+ ;; Return #t if X is a cross-libc.
+ (string-prefix? libc x))
+
+ (let ((cpath (string-append libc "/avr/include")))
+ (for-each (cut setenv <> cpath)
+ %gcc-cross-include-paths))
+
+ (setenv "CROSS_LIBRARY_PATH"
+ (string-append libc "/avr/lib"))
+
+ (for-each (lambda (var)
+ (and=> (getenv var)
+ (lambda (value)
+ (let* ((path (search-path-as-string->list value))
+ (native-path (list->search-path-as-string
+ (remove cross? path) ":")))
+ (setenv var native-path)))))
+ (cons "LIBRARY_PATH" %gcc-include-paths)))
+ ;; AVR sans-libc cross-compiler.
+ (else #t)))
+
(define (install-strip . _)
"Install a stripped GCC."
;; Unlike our 'strip' phase, this will do the right thing for
@@ 186,9 211,11 @@ a target triplet."
;; in (guix utils), but (guix utils) is too large too copy over to the
;; build side entirely and for now we have no way to select variables to
;; copy over. See (gnu packages cross-base) for more details.
- (if (string-suffix? "-mingw32" target)
- (cut set-cross-path/mingw #:target target <...>)
- set-cross-path))
+ (cond
+ ((string-suffix? "-mingw32" target)
+ (cut set-cross-path/mingw #:target target <...>))
+ ((string-prefix? "avr" target) set-cross-path/avr)
+ (#t set-cross-path)))
(add-after 'install 'make-cross-binutils-visible
(cut make-cross-binutils-visible #:target target <...>))
(replace 'install install-strip)))