Fix compilation with new nightly

src/header/glob/mod.rs

@@ -41,9 +41,8 @@ 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;
 
-#[linkage = "weak"] // GNU prefers its own glob e.g. in Make
-#[repr(C)]
 #[derive(Debug)]
+#[repr(C)]
 pub struct glob_t {
     pub gl_pathc: size_t, // Count of paths matched by pattern (POSIX required field)
     pub gl_offs: size_t,  // Slots to reserve at the beginning of gl_pathv (POSIX required field)