RawOpcode is defined incorrectly on Linux uclibc

[spritetong]

0.38.13 can not be compiled on Linux uclibc.

In src/ioctl/mod.rs, _RawOpcode is defined as c::c_int.

// On libc Linux with GNU libc, this is an unsigned long.
#[cfg(all(not(linux_raw), target_os = "linux", target_env = "gnu"))]
type _RawOpcode = c::c_ulong;

// Musl uses a c_int
#[cfg(all(not(linux_raw), target_os = "linux", not(target_env = "gnu")))]
type _RawOpcode = c::c_int;

But in the crate libc, Ioctl is ::c_ulong (src/unix/linux_like/linux/uclibc/mod.rs)

cfg_if! {
    if #[cfg(doc)] {
        // Used in `linux::arch` to define ioctl constants.
        pub(crate) type Ioctl = ::c_ulong;
    } else {
        #[doc(hidden)]
        pub type Ioctl = ::c_ulong;
    }
}

I have created a patch to address this issue, for your reference.

 src/ioctl/mod.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ioctl/mod.rs b/src/ioctl/mod.rs
index 61a08b8e..e870b7eb 100644
--- a/src/ioctl/mod.rs
+++ b/src/ioctl/mod.rs
@@ -293,12 +293,12 @@ pub type RawOpcode = _RawOpcode;
 #[cfg(linux_raw)]
 type _RawOpcode = c::c_uint;
 
-// On libc Linux with GNU libc, this is an unsigned long.
-#[cfg(all(not(linux_raw), target_os = "linux", target_env = "gnu"))]
+// On libc Linux with GNU libc or uclibc, this is an unsigned long.
+#[cfg(all(not(linux_raw), target_os = "linux", any(target_env = "gnu", target_env = "uclibc")))]
 type _RawOpcode = c::c_ulong;
 
 // Musl uses a c_int
-#[cfg(all(not(linux_raw), target_os = "linux", not(target_env = "gnu")))]
+#[cfg(all(not(linux_raw), target_os = "linux", not(target_env = "gnu"), not(target_env = "uclibc")))]
 type _RawOpcode = c::c_int;
 
 // Android uses c_int

[spritetong]

Thanks.

[sunfishcode]

This is now fixed in rustix 0.38.14.