zck.h: fix build on musl

The ssize_t type requires the <sys/types.h> header. This fixes build with musl
libc:

include/zck.h:68:1: error: unknown type name 'ssize_t'; did you mean 'size_t'?
   68 | ssize_t zck_read(zckCtx *zck, char *dst, size_t dst_size)
      | ^~~~~~~
      | size_t
include/zck.h:81:1: error: unknown type name 'ssize_t'; did you mean 'size_t'?
   81 | ssize_t zck_write(zckCtx *zck, const char *src, const size_t src_size)
      | ^~~~~~~
      | size_t

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>

diff --git a/include/zck.h.in b/include/zck.h.in
index 91d25578099dc5fc8aa1c97dead9226e61171fd9..b847576ad364b80d5f1ed28758a2e62be97f6c46 100644 (file)
--- a/include/zck.h.in
+++ b/include/zck.h.in
@@ -5,6 +5,7 @@
 
 #include <stdlib.h>
 #include <stdbool.h>
+#include <sys/types.h>
 
 typedef enum zck_hash {
     ZCK_HASH_SHA1,