Fixed STB_WEAK errors when using consts in macros in the stdlib c3lan…

…g#1871.

releasenotes.md

@@ -31,6 +31,7 @@
 - Issue where trailing body argument was allowed without type even though the definition specified it #1879.
 - Fix issues with @jump on empty `default` or only `default` #1893 #1894
 - Fixes miscompilation of nested `@jump` #1896.
+- Fixed STB_WEAK errors when using consts in macros in the stdlib #1871.
 
 ### Stdlib changes
 - Added '%h' and '%H' for printing out binary data in hexadecimal using the formatter.

src/compiler/sema_decls.c

@@ -4049,6 +4049,8 @@ bool sema_analyse_var_decl(SemaContext *context, Decl *decl, bool local)
 			is_global = true;
 			break;
 		case VARDECL_CONST:
+			if (local) decl->var.is_static = true;
+			break;
 		default:
 			break;
 	}

test/test_suite/variables/const_in_func.c3t

@@ -0,0 +1,19 @@
+// #target: linux-x64
+module scratch;
+import std::test;
+fn void main()
+{
+	int x = test::abc();
+}
+
+module std::test;
+
+macro abc()
+{
+	const int A = 256;
+	return A;
+}
+
+/* #expect: scratch.ll
+
+@main.A = internal local_unnamed_addr constant i32 256, align 4