diff --git a/nongnu/packages/wasm.scm b/nongnu/packages/wasm.scm
new file mode 100644
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--- /dev/null
+++ b/nongnu/packages/wasm.scm
@@ -0,0 +1,74 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2022 Pierre Langlois <pierre.langlois@gmx.com>
+;;;
+;;; This file is not part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (nongnu packages wasm)
+  #:use-module (guix gexp)
+  #:use-module (guix packages)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages llvm))
+
+(define-public wasi-libc
+  (let ((commit "ad5133410f66b93a2381db5b542aad5e0964db96")
+        (revision "1"))
+    (package
+      (name "wasi-libc")
+      (version (git-version "0.1-alpha" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/WebAssembly/wasi-libc")
+                      (commit commit)
+                      (recursive? #t)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "146jamq2q24vxjfpcwlqj84wzc80cbpbg0ns2wimyvzbanah48j6"))))
+      (build-system gnu-build-system)
+      (native-inputs (list clang-13))
+      (arguments
+       (list #:tests? #f ;No test suite
+             #:phases
+             #~(modify-phases %standard-phases
+                 (delete 'configure)
+                 (add-before 'build 'set-sysroot-include
+                   (lambda _
+                     (setenv "C_INCLUDE_PATH"
+                             (string-append (getcwd) "/sysroot/include"))))
+                 (add-before 'install 'set-install-dir
+                   (lambda _
+                     (setenv "INSTALL_DIR"
+                             (string-append #$output "/wasm32-wasi")))))))
+      (home-page "https://wasi.dev")
+      (synopsis "WASI libc implementation for WebAssembly")
+      (description
+       "WASI Libc is a libc for WebAssembly programs built on top of WASI
+system calls.  It provides a wide array of POSIX-compatible C APIs, including
+support for standard I/O, file I/O, filesystem manipulation, memory
+management, time, string, environment variables, program startup, and many
+other APIs.")
+      (license (list
+                ;; For wasi-libc, with LLVM exceptions
+                license:asl2.0
+                ;; For malloc.c.
+                license:cc0
+                ;; For cloudlibc.
+                license:bsd-2
+                ;; For wasi-libc and musl-libc.
+                license:expat)))))