diff -ruN rustc-1.37.0-src-orig/src/bootstrap/compile.rs rustc-1.37.0-src/src/bootstrap/compile.rs
--- rustc-1.37.0-src-orig/src/bootstrap/compile.rs	2019-08-12 23:27:22.000000000 -0700
+++ rustc-1.37.0-src/src/bootstrap/compile.rs	2019-08-17 02:56:03.893753627 -0700
@@ -116,28 +116,6 @@
 fn copy_third_party_objects(builder: &Builder<'_>, compiler: &Compiler, target: Interned<String>) {
     let libdir = builder.sysroot_libdir(*compiler, target);
 
-    // Copies the crt(1,i,n).o startup objects
-    //
-    // Since musl supports fully static linking, we can cross link for it even
-    // with a glibc-targeting toolchain, given we have the appropriate startup
-    // files. As those shipped with glibc won't work, copy the ones provided by
-    // musl so we have them on linux-gnu hosts.
-    if target.contains("musl") {
-        for &obj in &["crt1.o", "crti.o", "crtn.o"] {
-            builder.copy(
-                &builder.musl_root(target).unwrap().join("lib").join(obj),
-                &libdir.join(obj),
-            );
-        }
-    } else if target.ends_with("-wasi") {
-        for &obj in &["crt1.o"] {
-            builder.copy(
-                &builder.wasi_root(target).unwrap().join("lib/wasm32-wasi").join(obj),
-                &libdir.join(obj),
-            );
-        }
-    }
-
     // Copies libunwind.a compiled to be linked wit x86_64-fortanix-unknown-sgx.
     //
     // This target needs to be linked to Fortanix's port of llvm's libunwind.
diff -ruN rustc-1.37.0-src-orig/src/bootstrap/sanity.rs rustc-1.37.0-src/src/bootstrap/sanity.rs
--- rustc-1.37.0-src-orig/src/bootstrap/sanity.rs	2019-08-12 23:27:22.000000000 -0700
+++ rustc-1.37.0-src/src/bootstrap/sanity.rs	2019-08-17 03:06:51.725807452 -0700
@@ -176,34 +176,6 @@
             }
         }
 
-        // Make sure musl-root is valid
-        if target.contains("musl") {
-            // If this is a native target (host is also musl) and no musl-root is given,
-            // fall back to the system toolchain in /usr before giving up
-            if build.musl_root(*target).is_none() && build.config.build == *target {
-                let target = build.config.target_config.entry(target.clone())
-                    .or_default();
-                target.musl_root = Some("/usr".into());
-            }
-            match build.musl_root(*target) {
-                Some(root) => {
-                    if fs::metadata(root.join("lib/libc.a")).is_err() {
-                        panic!("couldn't find libc.a in musl dir: {}",
-                               root.join("lib").display());
-                    }
-                    if fs::metadata(root.join("lib/libunwind.a")).is_err() {
-                        panic!("couldn't find libunwind.a in musl dir: {}",
-                               root.join("lib").display());
-                    }
-                }
-                None => {
-                    panic!("when targeting MUSL either the rust.musl-root \
-                            option or the target.$TARGET.musl-root option must \
-                            be specified in config.toml")
-                }
-            }
-        }
-
         if target.contains("msvc") {
             // There are three builds of cmake on windows: MSVC, MinGW, and
             // Cygwin. The Cygwin build does not have generators for Visual
diff -ruN rustc-1.37.0-src-orig/src/librustc_target/spec/linux_musl_base.rs rustc-1.37.0-src/src/librustc_target/spec/linux_musl_base.rs
--- rustc-1.37.0-src-orig/src/librustc_target/spec/linux_musl_base.rs	2019-08-12 23:27:22.000000000 -0700
+++ rustc-1.37.0-src/src/librustc_target/spec/linux_musl_base.rs	2019-08-17 02:56:53.553119774 -0700
@@ -26,7 +26,7 @@
     base.post_link_objects_crt.push("crtn.o".to_string());
 
     // These targets statically link libc by default
-    base.crt_static_default = true;
+    base.crt_static_default = false;
     // These targets allow the user to choose between static and dynamic linking.
     base.crt_static_respected = true;
 
diff -ruN rustc-1.37.0-src-orig/src/libunwind/build.rs rustc-1.37.0-src/src/libunwind/build.rs
--- rustc-1.37.0-src-orig/src/libunwind/build.rs	2019-08-12 23:27:22.000000000 -0700
+++ rustc-1.37.0-src/src/libunwind/build.rs	2019-08-17 03:07:40.245230990 -0700
@@ -11,9 +11,7 @@
         #[cfg(feature = "llvm-libunwind")]
         llvm_libunwind::compile();
     } else if target.contains("linux") {
-        if target.contains("musl") {
-            // musl is handled in lib.rs
-        } else if !target.contains("android") {
+         if !target.contains("android") {
             println!("cargo:rustc-link-lib=gcc_s");
         }
     } else if target.contains("freebsd") {
diff -ruN rustc-1.37.0-src-orig/src/libunwind/lib.rs rustc-1.37.0-src/src/libunwind/lib.rs
--- rustc-1.37.0-src-orig/src/libunwind/lib.rs	2019-08-12 23:27:22.000000000 -0700
+++ rustc-1.37.0-src/src/libunwind/lib.rs	2019-08-17 03:06:59.005720850 -0700
@@ -21,8 +21,3 @@
         pub use libunwind::*;
     }
 }
-
-#[cfg(target_env = "musl")]
-#[link(name = "unwind", kind = "static", cfg(target_feature = "crt-static"))]
-#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
-extern {}
diff -ruN rustc-1.37.0-src-orig/vendor/libc/src/unix/mod.rs rustc-1.37.0-src/vendor/libc/src/unix/mod.rs
--- rustc-1.37.0-src-orig/vendor/libc/src/unix/mod.rs	2019-08-13 01:30:01.000000000 -0700
+++ rustc-1.37.0-src/vendor/libc/src/unix/mod.rs	2019-08-17 02:56:21.273531120 -0700
@@ -306,13 +306,6 @@
     } else if #[cfg(feature = "use_std")] {
         // cargo build, don't pull in anything extra as the libstd dep
         // already pulls in all libs.
-    } else if #[cfg(target_env = "musl")] {
-        #[cfg_attr(feature = "rustc-dep-of-std",
-                   link(name = "c", kind = "static",
-                        cfg(target_feature = "crt-static")))]
-        #[cfg_attr(feature = "rustc-dep-of-std",
-                   link(name = "c", cfg(not(target_feature = "crt-static"))))]
-        extern {}
     } else if #[cfg(target_os = "emscripten")] {
         #[link(name = "c")]
         extern {}
diff -ruN rustc-1.37.0-src-orig/vendor/openssl-sys/build/main.rs rustc-1.37.0-src/vendor/openssl-sys/build/main.rs
--- rustc-1.37.0-src-orig/vendor/openssl-sys/build/main.rs	2019-08-13 01:30:02.000000000 -0700
+++ rustc-1.37.0-src/vendor/openssl-sys/build/main.rs	2019-08-17 02:55:12.634414453 -0700
@@ -183,27 +183,30 @@
     if let Some(libressl_version) = libressl_version {
         println!("cargo:libressl_version_number={:x}", libressl_version);
 
+	let major = (libressl_version >> 28) as u8;
         let minor = (libressl_version >> 20) as u8;
         let fix = (libressl_version >> 12) as u8;
-        let (minor, fix) = match (minor, fix) {
-            (5, 0) => ('5', '0'),
-            (5, 1) => ('5', '1'),
-            (5, 2) => ('5', '2'),
-            (5, _) => ('5', 'x'),
-            (6, 0) => ('6', '0'),
-            (6, 1) => ('6', '1'),
-            (6, 2) => ('6', '2'),
-            (6, _) => ('6', 'x'),
-            (7, _) => ('7', 'x'),
-            (8, 0) => ('8', '0'),
-            (8, 1) => ('8', '1'),
-            (8, _) => ('8', 'x'),
-            (9, 0) => ('9', '0'),
+        let (major, minor, fix) = match (major, minor, fix) {
+            (2, 5, 0) => ('2', '5', '0'),
+            (2, 5, 1) => ('2', '5', '1'),
+            (2, 5, 2) => ('2', '5', '2'),
+            (2, 5, _) => ('2', '5', 'x'),
+            (2, 6, 0) => ('2', '6', '0'),
+            (2, 6, 1) => ('2', '6', '1'),
+            (2, 6, 2) => ('2', '6', '2'),
+            (2, 6, _) => ('2', '6', 'x'),
+            (2, 7, _) => ('2', '7', 'x'),
+            (2, 8, 0) => ('2', '8', '0'),
+            (2, 8, 1) => ('2', '8', '1'),
+            (2, 8, _) => ('2', '8', 'x'),
+            (2, 9, 0) => ('2', '9', '0'),
+            (2, 9, _) => ('2', '9', 'x'),
+            (3, 0, 0) => ('3', '0', '0'),
             _ => version_error(),
         };
 
         println!("cargo:libressl=true");
-        println!("cargo:libressl_version=2{}{}", minor, fix);
+        println!("cargo:libressl_version={}{}{}", major, minor, fix);
         println!("cargo:version=101");
         Version::Libressl
     } else {