Add compiler guards for GCC directives

1 files changed, 12 insertions, 0 deletions

diff --git a/src/typecheck.c b/src/typecheck.c
index 7920abc7..861431e0 100644
--- a/src/typecheck.c
+++ b/src/typecheck.c
@@ -21,8 +21,10 @@
 
 type_t *parse_type_ast(env_t *env, type_ast_t *ast)
 {
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wswitch-default"
+#endif
     switch (ast->tag) {
     case VarTypeAST: {
         const char *name = Match(ast, VarTypeAST)->name;
@@ -134,7 +136,9 @@ type_t *parse_type_ast(env_t *env, type_ast_t *ast)
     }
     case UnknownTypeAST: code_err(ast, "I don't know how to get this type");
     }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     errx(1, "Unreachable");
 }
 
@@ -564,8 +568,10 @@ type_t *get_clause_type(env_t *env, type_t *subject_t, when_clause_t *clause)
 type_t *get_type(env_t *env, ast_t *ast)
 {
     if (!ast) return NULL;
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wswitch-default"
+#endif
     switch (ast->tag) {
     case None: {
         if (!Match(ast, None)->type)
@@ -1398,7 +1404,9 @@ type_t *get_type(env_t *env, ast_t *ast)
     case Unknown: code_err(ast, "I can't figure out the type of: ", ast_to_str(ast));
     case Deserialize: return parse_type_ast(env, Match(ast, Deserialize)->type);
     }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     code_err(ast, "I can't figure out the type of: ", ast_to_str(ast));
 }
 
@@ -1544,13 +1552,17 @@ PUREFUNC bool is_constant(env_t *env, ast_t *ast)
     case TextLiteral: {
         CORD literal = Match(ast, TextLiteral)->cord; 
         CORD_pos i;
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
         CORD_FOR(i, literal) {
             if (!isascii(CORD_pos_fetch(i)))
                 return false; // Non-ASCII requires grapheme logic, not constant
         }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
         return true; // Literal ASCII string, OK
     }
     case Not: return is_constant(env, Match(ast, Not)->value);