Use native types on linux POSIX structs.

core/os/os_linux.odin

@@ -26,9 +26,6 @@ Pid       :: distinct i32
 File_Time :: distinct u64
 Socket    :: distinct int
 
-ino_t :: u64
-ino_t32 :: u32
-
 INVALID_HANDLE :: ~Handle(0)
 
 _Platform_Error :: linux.Errno

core/sys/posix/dirent.odin

@@ -202,33 +202,13 @@ when ODIN_OS == .Darwin {
 
 } else when ODIN_OS == .Linux {
 
-	when ODIN_ARCH == .i386 || ODIN_ARCH == .wasm32 || ODIN_ARCH == .arm32 {
-
 		dirent :: struct {
-			d_ino: ino_t32,                  /* [PSX] file number of entry */
-			d_off: off_t32,                  /* directory offset of the next entry */
-			d_reclen: c.uint16_t,            /* length of this record */
+			d_ino: u64,                  /* [PSX] file number of entry */
+			d_off: i64,                  /* directory offset of the next entry */
+			d_reclen: u16,            /* length of this record */
 			d_type: D_Type,                  /* file type  */
 			d_name: [256]c.char `fmt:"s,0"`, /* [PSX] entry name */
 		}
-	} else when ODIN_ARCH == .amd64 || ODIN_ARCH == .wasm64p32 || ODIN_ARCH == .arm64 {
-
-		dirent :: struct {
-			d_ino: ino_t,                    /* [PSX] file number of entry */
-			d_off: off_t,                    /* directory offset of the next entry */
-			d_reclen: c.uint16_t,            /* length of this record */
-			d_type: D_Type,                  /* file type  */
-			d_name: [256]c.char `fmt:"s,0"`, /* [PSX] entry name */
-		}
-	}
-
-	dirent64 :: struct {
-		d_ino: ino_t,                    /* [PSX] file number of entry */
-		d_off: off_t,                    /* directory offset of the next entry */
-		d_reclen: c.uint16_t,            /* length of this record */
-		d_type: D_Type,                  /* file type  */
-		d_name: [256]c.char `fmt:"s,0"`, /* [PSX] entry name */
-	}
 
 } else {
 	#panic("posix is unimplemented for the current target")

core/sys/posix/fcntl.odin

@@ -410,9 +410,6 @@ when ODIN_OS == .Darwin {
 		l_whence: c.short,   /* [PSX] flag (Whence) of starting offset */
 	}
 
-} else when ODIN_OS == .Linux {
-	off_t :: distinct c.uint64_t
-	off_t32 :: distinct c.uint32_t
 } else {
 	#panic("posix is unimplemented for the current target")
 }

core/sys/posix/sys_stat.odin

@@ -427,9 +427,6 @@ when ODIN_OS == .Darwin {
 	UTIME_NOW  :: -2
 	UTIME_OMIT :: -1
 
-} else when ODIN_OS == .Linux {
-	ino_t   :: distinct u64
-	ino_t32 :: distinct u32
 } else {
 	#panic("posix is unimplemented for the current target")
 }