split out reclen_t from sys_types header

src/header/bits_reclen-t/cbindgen.toml

@@ -0,0 +1,17 @@
+# POSIX header spec: https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/sys_types.h.html
+#
+# This type is split out to prevent importing all of sys/types.h into other headers.
+#
+# POSIX headers that require reclen_t:
+# - dirent.h
+# - sys/types.h (where it should be defined)
+sys_includes = []
+include_guard = "_RELIBC_BITS_RECLEN_T_H"
+language = "C"
+style = "type"
+no_includes = true
+cpp_compat = true
+[export]
+include = ["reclen_t"]
+[enum]
+prefix_with_name = true

src/header/bits_reclen-t/mod.rs

@@ -0,0 +1,5 @@
+use crate::platform::types::c_ushort;
+
+/// Used for directory entry lengths.
+#[allow(non_camel_case_types)]
+pub type reclen_t = c_ushort;

src/header/mod.rs

@@ -29,6 +29,8 @@ pub mod bits_off_t;
 #[path = "bits_pid-t/mod.rs"]
 pub mod bits_pid_t;
 pub mod bits_pthread;
+#[path = "bits_reclen-t/mod.rs"]
+pub mod bits_reclen_t;
 #[path = "bits_safamily-t/mod.rs"]
 pub mod bits_safamily_t;
 #[path = "bits_sigset-t/mod.rs"]

src/header/sys_types_internal/cbindgen.toml

@@ -11,6 +11,7 @@ after_includes = """
 #include <bits/nlink-t.h>
 #include <bits/off-t.h>
 #include <bits/pid-t.h>
+#include <bits/reclen-t.h>
 #include <bits/ssize-t.h>
 #include <bits/suseconds-t.h>
 #include <bits/sys/stat.h>    // for blkcnt_t and blksize_t
@@ -26,7 +27,6 @@ no_includes = true
 
 [export]
 include = [
-  "reclen_t",
   "useconds_t",
   "u_char",
   "uchar",

src/header/sys_types_internal/mod.rs

@@ -18,6 +18,7 @@ pub use crate::header::{
     bits_nlink_t::nlink_t,
     bits_off_t::off_t,
     bits_pid_t::pid_t,
+    bits_reclen_t::reclen_t,
     bits_size_t::size_t,
     bits_ssize_t::ssize_t,
     bits_suseconds_t::suseconds_t,
@@ -29,8 +30,6 @@ pub use crate::header::{
 };
 use crate::platform::types::{c_char, c_longlong, c_uchar, c_uint, c_ulong, c_ulonglong, c_ushort};
 
-/// Used for directory entry lengths.
-pub type reclen_t = c_ushort;
 pub type useconds_t = c_uint;
 
 pub type u_char = c_uchar;