abi: explicitly export intended symbols and hide others

This adds all exported symbols in the map files explicitly under
the following rules:
 - Symbols mentioned in internal headers go in a section which is
   valid only for testing, and linking with these symbols will break
   in library updates.
 - Symbols mentioned in installed headers go in the exported sections
   and are considered part of the ABI.
 - All internal symbols move to internal headers.
 - The _nettle_md5_compress and _nettle_sha1_compress become exported
   without the _nettle prefix, due to existing usage.

1 files changed, 1 insertions, 0 deletions

diff --git a/sha3.c b/sha3.c
index 24581db2..4a083be2 100644
--- a/sha3.c
+++ b/sha3.c
@@ -39,6 +39,7 @@
 #include <string.h>
 
 #include "sha3.h"
+#include "sha3-internal.h"
 
 #include "macros.h"
 #include "memxor.h"