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nongnu: Add wasm32-wasi-clang-toolchain.

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* nongnu/packages/wasm.scm (wasm32-wasi-clang-toolchain): New variable.

Signed-off-by: Jonathan Brielmaier <jonathan.brielmaier@web.de>
This commit is contained in:
Pierre Langlois 2022-01-17 19:15:36 +00:00 committed by Jonathan Brielmaier
parent 5e60eec084
commit 4124d9c693
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nongnu/packages/wasm.scm
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@ -24,6 +24,8 @@
#:use-module (guix git-download)
#:use-module (guix build-system cmake)
#:use-module (guix build-system gnu)
#:use-module (guix build-system trivial)
#:use-module (gnu packages bash)
#:use-module (gnu packages llvm)
#:use-module (gnu packages python))
@ -207,3 +209,65 @@ other APIs.")
use with Clang, targeting C++11, C++14 and above. This package targets
WebAssembly with WASI.")
(license license:expat)))
(define-public wasm32-wasi-clang-toolchain
(package
(name "wasm32-wasi-clang-toolchain")
(version (package-version wasm32-wasi-clang))
(source #f)
(build-system trivial-build-system)
(arguments
(list
#:builder
(with-imported-modules '((guix build union)
(guix build utils))
#~(begin
(use-modules (guix build union)
(guix build utils))
(union-build #$output
(list #$wasm32-wasi-clang-runtime
#$wasi-libc
#$wasm32-wasi-libcxx))
(mkdir-p (string-append #$output "/bin"))
;; We provide clang and clang++ via a wrapped program that sets
;; include paths correctly so that it does not include paths from
;; the host.
;; FIXME: Review how we can provide better support for
;; cross-compiling with clang in Guix, maybe adding support for
;; the CROSS_C_INCLUDE_PATH and CROSS_CPLUS_INCLUDE_PATH
;; environment variables like GCC.
(for-each
(lambda (bin)
(symlink (string-append #$wasm32-wasi-clang bin)
(string-append #$output bin))
(wrap-program (string-append #$output bin)
#:sh (string-append #$bash-minimal "/bin/bash")
`("C_INCLUDE_PATH" ":" =
(,(string-append #$output "/wasm32-wasi/include")))
`("CPLUS_INCLUDE_PATH" ":" =
;; Make sure inclure/c++/v1 comes first for #include_next
;; to work.
(,(string-append #$output "/wasm32-wasi/include/c++/v1")
,(string-append #$output "/wasm32-wasi/include")))))
'("/bin/clang" "/bin/clang++"))
(symlink (string-append #$lld "/bin/wasm-ld")
(string-append #$output "/bin/wasm-ld"))))))
(inputs
(list bash-minimal
lld
wasi-libc
wasm32-wasi-clang
wasm32-wasi-clang-runtime
wasm32-wasi-libcxx))
(license (cons
(package-license wasm32-wasi-clang)
(package-license wasi-libc)))
(home-page "https://clang.llvm.org")
(synopsis "Complete Clang toolchain for C/C++ development, for WebAssembly.")
(description "This package provides a complete Clang toolchain for C/C++
development targeting WebAssembly with WASI. This includes Clang, as well as
libc, libc++ and wasm-ld.")))