Update bindgen. (#76)

lmdb-sys/Cargo.toml

@@ -28,7 +28,7 @@ libc = "0.2"
 [build-dependencies]
 pkg-config = "0.3"
 cc = "1.0"
-bindgen = { version = "0.51.1-oldsyn", default-features = false, optional = true }
+bindgen = { version = "0.53.2", default-features = false, optional = true }
 
 [features]
 default = []

lmdb-sys/bindgen.rs

@@ -50,6 +50,7 @@ pub fn generate() {
         .whitelist_var("^(MDB|mdb)_.*")
         .whitelist_type("^(MDB|mdb)_.*")
         .whitelist_function("^(MDB|mdb)_.*")
+        .size_t_is_usize(true)
         .ctypes_prefix("::libc")
         .blacklist_item("mode_t")
         .blacklist_item("filehandle_t")

lmdb-sys/src/bindings.rs

@@ -53,7 +53,7 @@ pub const MDB_BAD_VALSIZE: ::libc::c_int = -30781;
 pub const MDB_BAD_DBI: ::libc::c_int = -30780;
 pub const MDB_LAST_ERRCODE: ::libc::c_int = -30780;
 pub type mdb_mode_t = mode_t;
-pub type mdb_filehandle_t = filehandle_t;
+pub type mdb_filehandle_t = ::libc::c_int;
 #[repr(C)]
 #[derive(Debug, Copy, Clone)]
 pub struct MDB_env {
@@ -82,6 +82,7 @@ pub struct MDB_cursor {
 #[doc = " The same applies to data sizes in databases with the #MDB_DUPSORT flag."]
 #[doc = " Other data items can in theory be from 0 to 0xffffffff bytes long."]
 #[repr(C)]
+#[derive(Debug, Copy, Clone)]
 pub struct MDB_val {
     #[doc = "< size of the data item"]
     pub mv_size: usize,
@@ -167,6 +168,7 @@ pub const MDB_PREV_MULTIPLE: MDB_cursor_op = 18;
 pub type MDB_cursor_op = u32;
 #[doc = " @brief Statistics for a database in the environment"]
 #[repr(C)]
+#[derive(Debug, Copy, Clone)]
 pub struct MDB_stat {
     #[doc = "< Size of a database page."]
     #[doc = "This is currently the same for all databases."]
@@ -184,6 +186,7 @@ pub struct MDB_stat {
 }
 #[doc = " @brief Information about the environment"]
 #[repr(C)]
+#[derive(Debug, Copy, Clone)]
 pub struct MDB_envinfo {
     #[doc = "< Address of map, if fixed"]
     pub me_mapaddr: *mut ::libc::c_void,