From 61f10dd2da81252338b3852b1ed4daf513d4ee87 Mon Sep 17 00:00:00 2001
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Fri, 20 Jan 2023 14:21:23 +0100
Subject: [PATCH 3/3] Tentative cross-compilation support for zig
---
guix/build-system/zig.scm | 114 ++++++++++++++++++++++++++------
guix/build/zig-build-system.scm | 6 +-
2 files changed, 98 insertions(+), 22 deletions(-)
@@ -84,6 +84,75 @@ (define builder
#:system system
#:guile-for-build guile)))
+(define* (zig-cross-build name
+ #:key
+ source target
+ build-inputs target-inputs host-inputs
+ (phases '%standard-phases)
+ (outputs '("out"))
+ (search-paths '())
+ (native-search-paths '())
+ (tests? #t)
+ (test-target #f)
+ (zig-build-flags ''())
+ (zig-test-flags ''())
+ (zig-release-type #f)
+ (system (%current-system))
+ (guile #f)
+ (imported-modules %zig-build-system-modules)
+ (modules '((guix build zig-build-system)
+ (guix build utils))))
+ "Build SOURCE using Zig, and with INPUTS."
+ (define builder
+ (with-imported-modules imported-modules
+ #~(begin
+ (use-modules #$@(sexp->gexp modules))
+
+ (define %build-host-inputs
+ #+(input-tuples->gexp build-inputs))
+
+ (define %build-target-inputs
+ (append #$(input-tuples->gexp host-inputs)
+ #+(input-tuples->gexp target-inputs)))
+
+ (define %build-inputs
+ (append %build-host-inputs %build-target-inputs))
+
+ (define %outputs
+ #$(outputs->gexp outputs))
+
+ (zig-build #:name #$name
+ #:source #+source
+ #:system #$system
+ #:phases #$phases
+ #:outputs %outputs
+ #:target #$target
+ #:test-target #$test-target
+ #:inputs %build-target-inputs
+ #:native-inputs %build-host-inputs
+ #:search-paths '#$(map search-path-specification->sexp
+ search-paths)
+ #:native-search-paths '#$(map
+ search-path-specification->sexp
+ native-search-paths)
+ #:zig-build-flags #$zig-build-flags
+ #:zig-test-flags #$zig-test-flags
+ #:zig-release-type #$zig-release-type
+ #:tests? #$tests?
+ #:search-paths '#$(sexp->gexp
+ (map search-path-specification->sexp
+ search-paths))))))
+
+ (mlet %store-monad ((guile (package->derivation (or guile (default-guile))
+ system #:graft? #f)))
+ (gexp->derivation name builder
+ #:system system
+ #:target target
+ #:graft? #f
+ #:substitutable? substitutable?
+ #:guile-for-build guile)))
+
+
(define* (lower name
#:key source inputs native-inputs outputs system target
(zig (default-zig))
@@ -94,27 +163,30 @@ (define* (lower name
(define private-keywords
'(#:target #:zig #:inputs #:native-inputs #:outputs))
- ;; TODO: support cross-compilation
- ;; It's as simple as adding some build flags to `zig-build-flags`
- ;; -Dtarget=aarch64-linux-musl, for example.
- (and (not target)
- (bag
- (name name)
- (system system)
- (target target)
- (host-inputs `(,@(if source
- `(("source" ,source))
- '())
- ,@inputs
-
- ;; Keep the standard inputs of 'gnu-build-system'
- ;; TODO: do we need this?
- ,@(standard-packages)))
- (build-inputs `(("zig" ,zig)
- ,@native-inputs))
- (outputs outputs)
- (build zig-build)
- (arguments (strip-keyword-arguments private-keywords arguments)))))
+ (bag
+ (name name)
+ (system system)
+ (target target)
+ (build-inputs `(,@(if source
+ `(("source" ,source))
+ '())
+ ,@`(("zig" ,zig))
+ ,@native-inputs
+ ,@(if target '() inputs)
+ ,@(if target
+ ;; Use the standard cross inputs of
+ ;; 'gnu-build-system'.
+ (standard-cross-packages target 'host)
+ '())
+ ;; Keep the standard inputs of 'gnu-build-system'.
+ ,@(standard-packages)))
+ (host-inputs (if target inputs '()))
+ (target-inputs (if target
+ (standard-cross-packages target 'target)
+ '()))
+ (outputs outputs)
+ (build (if target zig-cross-build zig-build))
+ (arguments (strip-keyword-arguments private-keywords arguments))))
(define zig-build-system
(build-system
@@ -47,6 +47,7 @@ (define* (build #:key
zig-build-flags
zig-release-type ;; "safe", "fast" or "small" empty for a
;; debug build"
+ target
#:allow-other-keys)
"Build a given Zig package."
@@ -56,6 +57,9 @@ (define* (build #:key
"--prefix-lib-dir" "lib"
"--prefix-exe-dir" "bin"
"--prefix-include-dir" "include"
+ ,@(if target
+ (list (string-append "-Dtarget=" target))
+ '())
,@(if zig-release-type
(list (string-append "-Drelease-" zig-release-type))
'())
@@ -63,7 +67,7 @@ (define* (build #:key
(format #t "running: ~s~%" call)
(apply invoke call)))
-(define* (check #:key tests?
+(define* (check #:key target (tests? (not target))
zig-test-flags
#:allow-other-keys)
"Run all the tests"
--
2.38.0