fixed for libstd build

diff --git a/src/libcore/core_arch_docs.md b/src/libcore/core_arch_docs.md
new file mode 120000 (symlink)
index 0000000..b80b2af
--- /dev/null
+++ b/src/libcore/core_arch_docs.md
@@ -0,0 +1 @@
+../stdsimd/crates/core_arch/src/core_arch_docs.md
\ No newline at end of file

diff --git a/src/libstd/Cargo.toml b/src/libstd/Cargo.toml
index 92876f7f2d804a6608a941426183799995ba3a3c..24745c11370585f8c5155d6d92243d921712d303 100644 (file)
--- a/src/libstd/Cargo.toml
+++ b/src/libstd/Cargo.toml
@@ -47,7 +47,7 @@ fortanix-sgx-abi = { version = "0.3.2", features = ['rustc-dep-of-std'] }
 cc = "1.0"
 
 [features]
-default = ["compiler_builtins_c"]
+default = ["compiler_builtins_c", "std_detect_file_io", "std_detect_dlsym_getauxval"]
 
 backtrace = ["backtrace-sys"]
 panic-unwind = ["panic_unwind"]
@@ -66,3 +66,7 @@ wasm_syscall = []
 # the environment for hooking up some thread-related information like the
 # current thread id and accessing/getting the current thread's TCB
 wasm-bindgen-threads = []
+
+# stdsimd features
+std_detect_file_io = []
+std_detect_dlsym_getauxval = []