Merge pull request rust-lang#3649 from SteveLauC/feat/_PC_XXX_for_apple_0.2

feat: more _PC_XXX constants for apple targets

Author: JohnTitor

libc-test/semver/apple.txt

@@ -2284,3 +2284,21 @@ wait4
 waitid
 xsw_usage
 xucred
+_PC_NAME_CHARS_MAX
+_PC_CASE_SENSITIVE
+_PC_CASE_PRESERVING
+_PC_EXTENDED_SECURITY_NP
+_PC_AUTH_OPAQUE_NP
+_PC_2_SYMLINKS
+_PC_ALLOC_SIZE_MIN
+_PC_ASYNC_IO
+_PC_FILESIZEBITS
+_PC_PRIO_IO
+_PC_REC_INCR_XFER_SIZE
+_PC_REC_MAX_XFER_SIZE
+_PC_REC_MIN_XFER_SIZE
+_PC_REC_XFER_ALIGN
+_PC_SYMLINK_MAX
+_PC_SYNC_IO
+_PC_XATTR_SIZE_BITS
+_PC_MIN_HOLE_SIZE

src/unix/bsd/apple/mod.rs

@@ -3227,6 +3227,24 @@ pub const _PC_PIPE_BUF: ::c_int = 6;
 pub const _PC_CHOWN_RESTRICTED: ::c_int = 7;
 pub const _PC_NO_TRUNC: ::c_int = 8;
 pub const _PC_VDISABLE: ::c_int = 9;
+pub const _PC_NAME_CHARS_MAX: ::c_int = 10;
+pub const _PC_CASE_SENSITIVE: ::c_int = 11;
+pub const _PC_CASE_PRESERVING: ::c_int = 12;
+pub const _PC_EXTENDED_SECURITY_NP: ::c_int = 13;
+pub const _PC_AUTH_OPAQUE_NP: ::c_int = 14;
+pub const _PC_2_SYMLINKS: ::c_int = 15;
+pub const _PC_ALLOC_SIZE_MIN: ::c_int = 16;
+pub const _PC_ASYNC_IO: ::c_int = 17;
+pub const _PC_FILESIZEBITS: ::c_int = 18;
+pub const _PC_PRIO_IO: ::c_int = 19;
+pub const _PC_REC_INCR_XFER_SIZE: ::c_int = 20;
+pub const _PC_REC_MAX_XFER_SIZE: ::c_int = 21;
+pub const _PC_REC_MIN_XFER_SIZE: ::c_int = 22;
+pub const _PC_REC_XFER_ALIGN: ::c_int = 23;
+pub const _PC_SYMLINK_MAX: ::c_int = 24;
+pub const _PC_SYNC_IO: ::c_int = 25;
+pub const _PC_XATTR_SIZE_BITS: ::c_int = 26;
+pub const _PC_MIN_HOLE_SIZE: ::c_int = 27;
 pub const O_EVTONLY: ::c_int = 0x00008000;
 pub const O_NOCTTY: ::c_int = 0x00020000;
 pub const O_DIRECTORY: ::c_int = 0x00100000;