+ "i686-w64-mingw32"
+ "x86_64-w64-mingw32"))
+
+(define (cross-jobs store system)
+ "Return a list of cross-compilation jobs for SYSTEM."
+ (define (from-32-to-64? target)
+ ;; Return true if SYSTEM is 32-bit and TARGET is 64-bit. This hack
+ ;; prevents known-to-fail cross-builds from i686-linux or armhf-linux to
+ ;; mips64el-linux-gnuabi64.
+ (and (or (string-prefix? "i686-" system)
+ (string-prefix? "i586-" system)
+ (string-prefix? "armhf-" system))
+ (string-contains target "64"))) ;x86_64, mips64el, aarch64, etc.
+
+ (define (same? target)
+ ;; Return true if SYSTEM and TARGET are the same thing. This is so we
+ ;; don't try to cross-compile to 'mips64el-linux-gnu' from
+ ;; 'mips64el-linux'.
+ (or (string-contains target system)
+ (and (string-prefix? "armhf" system) ;armhf-linux
+ (string-prefix? "arm" target)))) ;arm-linux-gnueabihf
+
+ (define (pointless? target)
+ ;; Return #t if it makes no sense to cross-build to TARGET from SYSTEM.
+ (match system
+ ((or "x86_64-linux" "i686-linux")
+ (if (string-contains target "mingw")
+ (not (string=? "x86_64-linux" system))
+ #f))
+ (_
+ ;; Don't try to cross-compile from non-Intel platforms: this isn't
+ ;; very useful and these are often brittle configurations.
+ #t)))
+
+ (define (either proc1 proc2 proc3)
+ (lambda (x)
+ (or (proc1 x) (proc2 x) (proc3 x))))
+
+ (append-map (lambda (target)
+ (map (lambda (package)
+ (package-cross-job store (job-name package)
+ package target system))
+ (packages-to-cross-build target)))
+ (remove (either from-32-to-64? same? pointless?)
+ %cross-targets)))
+
+;; Architectures that are able to build or cross-build Guix System images.
+;; This does not mean that other architectures are not supported, only that
+;; they are often not fast enough to support Guix System images building.
+(define %guix-system-supported-systems
+ '("x86_64-linux" "i686-linux"))
+
+(define %guix-system-images
+ (list hurd-barebones-disk-image))
+
+(define (image-jobs store system)
+ "Return a list of jobs that build images for SYSTEM."