generate corpus to fuzz on with meson

fuzz/meson.build

@@ -1,5 +1,20 @@
 cbindgen = find_program('cbindgen')
 
+gencorpus = executable(
+    'gencorpus',
+    'gencorpus.rs',
+    dependencies: [mon],
+    link_with: [gentoo_utils],
+)
+
+corpus_directory = meson.current_build_dir() / 'corpus'
+
+corpus = custom_target(
+    'corpus',
+    output: 'corpus',
+    command: [gencorpus, corpus_directory],
+)
+
 fuzz_h = custom_target(
     'fuzz_h',
     input: 'fuzz.rs',
@@ -20,8 +35,10 @@ fuzz_rs = static_library(
     link_with: [gentoo_utils],
 )
 
-fuzz_cpp = executable(
+fuzz = executable(
     'fuzz',
     link_args: ['-fsanitize=fuzzer'],
     link_with: [fuzz_rs],
 )
+
+test('fuzz', fuzz, args: [corpus_directory], depends: [corpus], timeout: 0)