update and add spec links for glob and setjmp

src/header/glob/mod.rs

@@ -1,4 +1,6 @@
-//! glob implementation, following https://pubs.opengroup.org/onlinepubs/9699919799/functions/glob.html
+//! `glob.h` implementation.
+//!
+//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/glob.h.html>.
 
 #![deny(unsafe_op_in_unsafe_fn)]
 
@@ -41,6 +43,7 @@ pub const GLOB_ABORTED: c_int = 2;
 // Pattern does not match any existing pathname, and GLOB_NOCHECK was not set
 pub const GLOB_NOMATCH: c_int = 3;
 
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/glob.h.html>.
 #[derive(Debug)]
 #[repr(C)]
 pub struct glob_t {
@@ -52,6 +55,7 @@ pub struct glob_t {
     __opaque: *mut c_void, // Vec<*mut c_char>
 }
 
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/glob.html>.
 #[linkage = "weak"] // GNU prefers its own glob e.g. in Make
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn glob(
@@ -146,6 +150,7 @@ pub unsafe extern "C" fn glob(
     0
 }
 
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/glob.html>.
 #[linkage = "weak"] // GNU prefers its own glob e.g. in Make
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn globfree(pglob: *mut glob_t) {

src/header/setjmp/mod.rs

@@ -1,4 +1,6 @@
-//! setjmp implementation for Redox, following http://pubs.opengroup.org/onlinepubs/7908799/xsh/setjmp.h.html
+//! `setjmp.h` implementation.
+//!
+//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/setjmp.h.html>.
 
 use core::arch::global_asm;
 
@@ -22,6 +24,8 @@ platform_specific! {
 
 //Each platform has different sizes for sigjmp_buf, currently only x86_64 is supported
 unsafe extern "C" {
+    /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/setjmp.html>.
     pub fn setjmp(jb: *mut u64) -> i32;
+    /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/longjmp.html>.
     pub fn longjmp(jb: *mut u64, ret: i32);
 }