c backend: Implement aligning fields and local/global variables

There are some restrictions here.

- We either need C11 or a compiler that supports the aligned attribute
- We cannot provide align less than the type's natural C alignment.

1 files changed, 2 insertions, 0 deletions

diff --git a/test/behavior/struct.zig b/test/behavior/struct.zig
index 40310f8add..7ff67e1c90 100644
--- a/test/behavior/struct.zig
+++ b/test/behavior/struct.zig
@@ -201,6 +201,8 @@ test "struct field init with catch" {
 }
 
 test "packed struct field alignment" {
+    if (builtin.object_format == .c) return error.SkipZigTest;
+
     const Stage1 = struct {
         var baz: packed struct {
             a: u32,