move fuzz stuff into its own directory

Cargo.toml

@@ -10,4 +10,8 @@ itertools = "0.14.0"
 thiserror = "2.0.17"
 
 [profile.dev]
-debug = true
+debug = true
+
+[[test]]
+path = "fuzz/fuzz.rs"
+name = "fuzz"

fuzz/meson.build

@@ -0,0 +1,27 @@
+cbindgen = find_program('cbindgen')
+
+fuzz_h = custom_target(
+    'fuzz_h',
+    input: 'fuzz.rs',
+    output: 'fuzz.h',
+    command: [cbindgen, '@INPUT@', '-o', '@OUTPUT'],
+)
+
+fuzz_rs = static_library(
+    'fuzz_rs',
+    'fuzz.rs',
+    rust_abi: 'c',
+    rust_args: [
+        '-Cpasses=sancov-module',
+        '-Cllvm-args=-sanitizer-coverage-level=3',
+        '-Cllvm-args=-sanitizer-coverage-inline-8bit-counters',
+    ],
+    dependencies: [mon],
+    link_with: [gentoo_utils],
+)
+
+fuzz_cpp = executable(
+    'fuzz',
+    link_args: ['-fsanitize=fuzzer'],
+    link_with: [fuzz_rs],
+)

meson.build

@@ -19,4 +19,6 @@ gentoo_utils = static_library(
     link_with: [thiserror],
 )
 
-subdir('tests')
+if get_option('fuzz').enabled()
+    subdir('fuzz')
+endif

tests/meson.build

@@ -1,27 +1 @@
-cbindgen = find_program('cbindgen')
+subdir('fuzz')
-
-fuzz_h = custom_target(
-    'fuzz_h',
-    input: 'fuzz.rs',
-    output: 'fuzz.h',
-    command: [cbindgen, '@INPUT@', '-o', '@OUTPUT'],
-)
-
-fuzz_rs = static_library(
-    'fuzz_rs',
-    'fuzz.rs',
-    rust_abi: 'c',
-    rust_args: [
-        '-Cpasses=sancov-module',
-        '-Cllvm-args=-sanitizer-coverage-level=3',
-        '-Cllvm-args=-sanitizer-coverage-inline-8bit-counters',
-    ],
-    dependencies: [mon],
-    link_with: [gentoo_utils],
-)
-
-fuzz_cpp = executable(
-    'fuzz',
-    link_args: ['-fsanitize=fuzzer'],
-    link_with: [fuzz_rs],
-)