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diff --git a/lib/compilers/mrustc.js b/lib/compilers/mrustc.js
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+// Copyright (c) 2021, Marc Poulhiès
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//     * Redistributions of source code must retain the above copyright notice,
+//       this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+import path from 'path';
+
+import { BaseCompiler } from '../base-compiler';
+
+import { MrustcParser } from './argument-parsers';
+
+export class MrustcCompiler extends BaseCompiler {
+    static get key() { return 'mrustc'; }
+
+    optionsForFilter(filters, outputFilename) {
+        // mrustc always dumps the C code for <baseout> target in the <baseout>.c file.
+        // In our case, the actual file in -o is not even created because we are
+        // faking the last step (C compilation).
+        // Craft the 'outname' to have the intermediate .c file writen in outputFilename.
+        let outname = path.join(path.dirname(this.filename(outputFilename)),
+            path.basename(this.filename(outputFilename), '.c'));
+        return ['-o', outname, '-L', path.join(path.dirname(this.compiler.exe), '..', 'output')];
+    }
+
+    async runCompiler(compiler, options, inputFilename, execOptions) {
+        // mrustc will always invoke a C compiler on its C output to create a final exec/object.
+        // There's no easy way to disable this last step, so simply faking it with 'true' works.
+        execOptions.env.CC = 'true';
+
+        return super.runCompiler(compiler, options, inputFilename, execOptions);
+    }
+
+    getOutputFilename(dirPath) {
+        return path.join(dirPath, `${path.basename(this.compileFilename, this.lang.extensions[0])}.c`);
+    }
+
+    getArgumentParser() {
+        return MrustcParser;
+    }
+
+}