Use build script to imply openlibm

libstd/Cargo.toml

@@ -2,6 +2,7 @@
 name = "redox_std"
 version = "0.1.0"
 authors = ["Jeremy Soller <jackpot51@gmail.com>"]
+build = "../rust/src/libstd/build.rs"
 
 [lib]
 name = "std"
@@ -14,3 +15,7 @@ panic_abort = { path = "panic_abort" }
 #panic_unwind = { path = "panic_unwind" }
 libc = { path = "libc" }
 unwind = { path = "unwind" }
+
+[build-dependencies]
+build_helper = { path = "../rust/src/build_helper" }
+gcc = "0.3.27"

rust

@@ -1 +1 @@
-Subproject commit 65eecf8bb311efe4174cb7a90271344b72371884
+Subproject commit fd4bc88880bd7aeb2a1a5cb56fbfea639bc6f2e7

x86_64-unknown-redox.json

@@ -9,7 +9,6 @@
     "vendor": "unknown",
     "target-family": "redox",
     "pre-link-args": ["-m64", "-nostdlib", "-static"],
-    "post-link-args": ["build/userspace/libopenlibm.a"],
     "features": "",
     "dynamic-linking": false,
     "executables": true,