fix link error

crabtw · brson · commit b54c76c83293 · 2012-06-06T12:45:56.000-07:00
diff --git a/src/rustc/back/link.rs b/src/rustc/back/link.rs
@@ -636,7 +636,7 @@ fn link_binary(sess: session,
     // On linux librt and libdl are an indirect dependencies via rustrt,
     // and binutils 2.22+ won't add them automatically
     if sess.targ_cfg.os == session::os_linux {
-        cc_args += ["-lrt", "-ldl"];
+        cc_args += ["-lrt", "-ldl", "-lm"];
     }
 
     if sess.targ_cfg.os == session::os_freebsd {

Original file line number	Diff line number	Diff line change
`@@ -636,7 +636,7 @@ fn link_binary(sess: session,`
`636`	`636`	`// On linux librt and libdl are an indirect dependencies via rustrt,`
`637`	`637`	`// and binutils 2.22+ won't add them automatically`
`638`	`638`	`if sess.targ_cfg.os == session::os_linux {`
`639`		`- cc_args += ["-lrt", "-ldl"];`
	`639`	`+ cc_args += ["-lrt", "-ldl", "-lm"];`
`640`	`640`	`}`
`641`	`641`
`642`	`642`	`if sess.targ_cfg.os == session::os_freebsd {`