Ignore doctests for unexported macros
Due to rust-lang/rust#97030, cargo test will fail to doctest macros
unless they are exported, breaking the examples for libc_bitflags! and
libc_enum!.
Adds `ignore` to the examples for these macros to stop tests from
failing.
@@ -19,7 +19,7 @@ macro_rules! feature {
/// The `libc` crate must be in scope with the name `libc`.
///
/// # Example
-/// ```
+/// ```ignore
/// libc_bitflags!{
/// pub struct ProtFlags: libc::c_int {
/// PROT_NONE;
@@ -39,7 +39,7 @@ macro_rules! feature {
/// various flags have different types, so we cast the broken ones to the right
/// type.
///
-/// ```
+/// ```ignore
/// libc_bitflags!{
/// pub struct SaFlags: libc::c_ulong {
/// SA_NOCLDSTOP as libc::c_ulong;
@@ -80,7 +80,7 @@ macro_rules! libc_bitflags {
/// The `libc` crate must be in scope with the name `libc`.
///
/// # Example
-/// ```
+/// ```ignore
/// libc_enum!{
/// pub enum ProtFlags {
/// PROT_NONE,
