Fix build without wat feature. (#12706)

Signed-off-by: Piotr Sikora <code@piotrsikora.dev>

Author: PiotrSikora

crates/c-api/include/wasmtime/component/component.hh

@@ -40,6 +40,8 @@ class Component {
   WASMTIME_CLONE_WRAPPER(Component, wasmtime_component);
 
 #ifdef WASMTIME_FEATURE_COMPILER
+
+#ifdef WASMTIME_FEATURE_WAT
   /**
    * \brief Compiles a component from the WebAssembly text format.
    *
@@ -54,6 +56,7 @@ class Component {
     auto bytes = wasm.ok();
     return compile(engine, bytes);
   }
+#endif // WASMTIME_FEATURE_WAT
 
   /**
    * \brief Compiles a component from the WebAssembly binary format.

crates/c-api/include/wasmtime/module.hh

@@ -29,6 +29,8 @@ class Module {
   WASMTIME_CLONE_WRAPPER(Module, wasmtime_module);
 
 #ifdef WASMTIME_FEATURE_COMPILER
+
+#ifdef WASMTIME_FEATURE_WAT
   /**
    * \brief Compiles a module from the WebAssembly text format.
    *
@@ -43,6 +45,7 @@ class Module {
     auto bytes = wasm.ok();
     return compile(engine, bytes);
   }
+#endif // WASMTIME_FEATURE_WAT
 
   /**
    * \brief Compiles a module from the WebAssembly binary format.

crates/wasmtime/src/compile/code_builder/compile_time_builtins.rs

@@ -223,6 +223,7 @@ impl<'a> CodeBuilder<'a> {
     ///
     /// See the example in [CodeBuilder::expose_unsafe_intrinsics], which uses
     /// compile-time builtins.
+    #[allow(unused_variables, reason = "`wasm_path` only used with `wat` feature")]
     pub unsafe fn compile_time_builtins_binary_or_text(
         &mut self,
         name: impl Into<Cow<'a, str>>,