Use zip_XXX_t instead of struct zip_XXX or enum zip_XXX.

lib/zip_file_set_external_attributes.c

diff --git a/lib/zip_file_set_external_attributes.c b/lib/zip_file_set_external_attributes.c
index 1de59dc..d8f580e 100644
--- a/lib/zip_file_set_external_attributes.c
+++ b/lib/zip_file_set_external_attributes.c
@@ -34,9 +34,9 @@
 #include "zipint.h"
 
 int
-zip_file_set_external_attributes(struct zip *za, zip_uint64_t idx, zip_flags_t flags, zip_uint8_t opsys, zip_uint32_t attributes)
+zip_file_set_external_attributes(zip_t *za, zip_uint64_t idx, zip_flags_t flags, zip_uint8_t opsys, zip_uint32_t attributes)
 {
-    struct zip_entry *e;
+    zip_entry_t *e;
     int changed;
     zip_uint8_t unchanged_opsys;
     zip_uint32_t unchanged_attributes;