Pass static crt to llvm cmake configuration

Author: liranringel

src/Cargo.lock

@@ -25,11 +25,11 @@ test = false
 
 [dependencies]
 build_helper = { path = "../build_helper" }
-cmake = "0.1.17"
+cmake = "0.1.23"
 filetime = "0.1"
 num_cpus = "0.2"
 toml = "0.1"
 getopts = "0.2"
 rustc-serialize = "0.3"
-gcc = "0.3.38"
+gcc = "0.3.46"
 libc = "0.2"

src/bootstrap/Cargo.toml

@@ -96,7 +96,8 @@ pub fn llvm(build: &Build, target: &str) {
        .define("LLVM_ENABLE_LIBEDIT", "OFF")
        .define("LLVM_PARALLEL_COMPILE_JOBS", build.jobs().to_string())
        .define("LLVM_TARGET_ARCH", target.split('-').next().unwrap())
-       .define("LLVM_DEFAULT_TARGET_TRIPLE", target);
+       .define("LLVM_DEFAULT_TARGET_TRIPLE", target)
+       .static_crt(true);
 
     if target.starts_with("i686") {
         cfg.define("LLVM_BUILD_32_BITS", "ON");