Rollup merge of rust-lang#46760 - semarie:openbsd-arm64, r=alexcrichton

add aarch64-unknown-openbsd support - make liblibc to point to libc with aarch64-unknown-openbsd - make c_char (in std::os::raw) to point to right value r? @alexcrichton currently, I have only tested in crosscompilation environement (openbsd x64_64 -> openbsd aarch64). it produces valid binaries.
kennytm · Dec 20, 2017 · 1d57459 · 1d57459
2 parents 4d9ed87 + 8c7b093
commit 1d57459
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diff --git a/src/liblibc b/src/liblibc
diff --git a/src/libstd/os/raw.rs b/src/libstd/os/raw.rs
@@ -22,6 +22,7 @@ use fmt;
           all(target_os = "android", any(target_arch = "aarch64",
                                          target_arch = "arm")),
           all(target_os = "l4re", target_arch = "x86_64"),
+          all(target_os = "openbsd", target_arch = "aarch64"),
           all(target_os = "fuchsia", target_arch = "aarch64")))]
 #[stable(feature = "raw_os", since = "1.1.0")] pub type c_char = u8;
 #[cfg(not(any(all(target_os = "linux", any(target_arch = "aarch64",
@@ -32,6 +33,7 @@ use fmt;
               all(target_os = "android", any(target_arch = "aarch64",
                                              target_arch = "arm")),
               all(target_os = "l4re", target_arch = "x86_64"),
+              all(target_os = "openbsd", target_arch = "aarch64"),
               all(target_os = "fuchsia", target_arch = "aarch64"))))]
 #[stable(feature = "raw_os", since = "1.1.0")] pub type c_char = i8;
 #[stable(feature = "raw_os", since = "1.1.0")] pub type c_schar = i8;