diff --git a/CMakeLists.txt b/CMakeLists.txt
index 658f537..8d0fa01 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,12 @@ add_executable(ink_exe main.c)
 target_link_libraries(ink_exe PUBLIC ink)
 target_include_directories(ink PUBLIC include)
 
+if(MSVC)
+    target_compile_options(ink PRIVATE /W4 /WX)
+else()
+    target_compile_options(ink PRIVATE -Wall -Wextra -Wpedantic -Werror)
+endif()
+
 # Benchmark is broken since the addition to coroutines
 # add_executable(ink_bench bench.c)
 # target_link_libraries(ink_bench PUBLIC ink)
diff --git a/lib.c b/lib.c
index 34c26ee..9d3915a 100644
--- a/lib.c
+++ b/lib.c
@@ -355,7 +355,7 @@ struct context* ink_make_default_context(void) {
 }
 #endif
 
-static int ink_consume_one(int* end, struct context* pContext, char** buffer, char* r) {
+static int ink_consume_one(int* end, struct context* pContext, char* r) {
 	int i;
 	int done;
 	struct elem value;
@@ -471,7 +471,7 @@ restart_after_comment:
 				end = 0;
 				goto restart_after_comment;
 			}
-			err = ink_consume_one(&end, pContext, &buffer, r);
+			err = ink_consume_one(&end, pContext, r);
 			if(err < 0) {
 				pContext->panic = 1;
 				return -8;
@@ -482,7 +482,7 @@ restart_after_comment:
 		}
 		++buffer;
 	}
-	err = ink_consume_one(&end, pContext, &buffer, r);
+	err = ink_consume_one(&end, pContext, r);
 	if(err < 0) {
 		pContext->panic = 1;
 		return -9;
@@ -1328,7 +1328,7 @@ static void lte_int(struct context* ctx) {
 	currentRoutine->stack[currentRoutine->top-1].value = b.value <= a.value;
 }
 
-#endif // NOEXTRAARITHMETIC
+#endif /* NOEXTRAARITHMETIC */
 
 static void lt_int(struct context* ctx) {
 	struct ink_routine* currentRoutine;
@@ -1559,9 +1559,9 @@ static void dump_stack(struct context* ctx) {
     return;
 }
 
-static void collect_noop(struct context* _1, void* _2) {}
+static void collect_noop() {}
 
-static struct ink_collection_list gc_noop(struct context* _1, void* _2) {
+static struct ink_collection_list gc_noop() {
 	struct ink_collection_list c;
 	c.elements = NULL;
 	c.count = 0;
@@ -1674,7 +1674,6 @@ static void push_delimited_array(struct context* ctx) {
 	ary= ink_get_value(ctx, a);
 	
 	for(idx = 1; idx <= currentRoutine->top; ++idx) {
-		struct elem maybe_delim;
 		if(currentRoutine->stack[currentRoutine->top-idx].type == tid) {
 			break;
 		}
@@ -1822,7 +1821,6 @@ static void is_array(struct context* ctx) {
 }
 
 static void is_int(struct context* ctx) {
-	int tid;
 	struct ink_routine *currentRoutine;
 	struct elem a;
 	
@@ -1843,7 +1841,6 @@ static void print_array_of_codepoints(struct context* ctx) {
 	struct ink_routine *currentRoutine;
 	struct elem a;
 	struct ink_array *ary;
-	struct elem idx;
 	
 	tid = get_type_by_name(ctx, "array");
 	currentRoutine = ctx->routines + ctx->routine_current;
@@ -1892,7 +1889,7 @@ static void arrayify_stack(struct context* ctx) {
 	return;
 }
 
-#endif // NOARRAYLIB
+#endif /* NOARRAYLIB */
 
 int ink_std_library(struct context* ctx) {
 	int v;
@@ -1923,7 +1920,7 @@ int ink_std_library(struct context* ctx) {
 	v += ink_add_native(ctx, "=<", lte_int);
     v += ink_add_native(ctx, "%", rem_int);
     v += ink_add_native(ctx, "int.xor", xor_int);
-#endif // NOEXTRAARITHMETIC
+#endif /* NOEXTRAARITHMETIC */
 #ifndef NOARRAYLIB
 	ink_new_type(ctx, "array", sizeof(struct ink_array), collect_array, gc_array);
 	ink_new_type(ctx, "array_marker", 0, collect_noop, gc_noop);
@@ -1937,7 +1934,7 @@ int ink_std_library(struct context* ctx) {
 	v += ink_add_native(ctx, "array.print_utf8", print_array_of_codepoints);
 	v += ink_add_native(ctx, "is.array", is_array);
 	v += ink_add_native(ctx, "stack.to_array", arrayify_stack);
-#endif // NOARRAYLIB
+#endif /* NOARRAYLIB */
 	
 	return v;
 }