cut down size of some libc struct members

these are all flags that can be single-byte values.

diff --git a/src/internal/libc.h b/src/internal/libc.h
index c0614852eb3cee5a13e9d9423d6eef5177a2b332..d47f58e01df958988347a2fcc9fd63ff3703ba19 100644 (file)
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -18,9 +18,9 @@ struct tls_module {
 };
 
 struct __libc {
-       int can_do_threads;
-       int threaded;
-       int secure;
+       char can_do_threads;
+       char threaded;
+       char secure;
        int threads_minus_1;
        size_t *auxv;
        struct tls_module *tls_head;