use latest libc

ndusart · ndusart · commit 16d481c4103a · 2017-07-17T11:38:56.000+02:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -22,7 +22,7 @@ preadv_pwritev = []
 signalfd = []
 
 [dependencies]
-libc = "0.2.25"
+libc = { git = "https://github.com/rust-lang/libc" }
 bitflags = "0.9"
 cfg-if = "0.1.0"
 void = "1.0.2"
