Rollup merge of #39431 - alexcrichton:no-more-makefiles, r=brson

Delete the makefile build system

This PR deletes the makefile build system in favor of the rustbuild build system. The beta has now been branched so 1.16 will continue to be buildable from the makefiles, but going forward 1.17 will only be buildable with rustbuild.

Rustbuild has been the default build system [since 1.15.0](https://github.com/rust-lang/rust/pull/37817) and the makefiles were [proposed for deletion](https://internals.rust-lang.org/t/proposal-for-promoting-rustbuild-to-official-status/4368) at this time back in November of last year.

And now with the deletion of these makefiles we can start getting those sweet sweet improvements of using crates.io crates in the compiler!

4 files changed, 1 insertions, 17 deletions

diff --git a/src/libstd/sys/unix/args.rs b/src/libstd/sys/unix/args.rs
index 0f447ff4ec4..6e35a472792 100644
--- a/src/libstd/sys/unix/args.rs
+++ b/src/libstd/sys/unix/args.rs
@@ -189,11 +189,6 @@ mod imp {
             fn objc_msgSend_ul(obj: NsId, sel: Sel, ...) -> NsId;
         }
 
-        #[link(name = "Foundation", kind = "framework")]
-        #[link(name = "objc")]
-        #[cfg(not(cargobuild))]
-        extern {}
-
         type Sel = *const libc::c_void;
         type NsId = *const libc::c_void;
 
diff --git a/src/libstd/sys/unix/mod.rs b/src/libstd/sys/unix/mod.rs
index fd7dc17cccd..c57751a01d7 100644
--- a/src/libstd/sys/unix/mod.rs
+++ b/src/libstd/sys/unix/mod.rs
@@ -33,7 +33,7 @@ pub mod weak;
 
 pub mod args;
 pub mod android;
-#[cfg(any(not(cargobuild), feature = "backtrace"))]
+#[cfg(feature = "backtrace")]
 pub mod backtrace;
 pub mod condvar;
 pub mod env;
diff --git a/src/libstd/sys/unix/rand.rs b/src/libstd/sys/unix/rand.rs
index 9b1cf6ffd0e..77ebad4e344 100644
--- a/src/libstd/sys/unix/rand.rs
+++ b/src/libstd/sys/unix/rand.rs
@@ -257,10 +257,6 @@ mod imp {
     #[allow(non_upper_case_globals)]
     const kSecRandomDefault: *const SecRandom = ptr::null();
 
-    #[link(name = "Security", kind = "framework")]
-    #[cfg(not(cargobuild))]
-    extern {}
-
     extern {
         fn SecRandomCopyBytes(rnd: *const SecRandom,
                               count: size_t, bytes: *mut u8) -> c_int;
diff --git a/src/libstd/sys/windows/c.rs b/src/libstd/sys/windows/c.rs
index 850d6f49612..e5010ca3564 100644
--- a/src/libstd/sys/windows/c.rs
+++ b/src/libstd/sys/windows/c.rs
@@ -833,13 +833,6 @@ pub struct CONSOLE_READCONSOLE_CONTROL {
 }
 pub type PCONSOLE_READCONSOLE_CONTROL = *mut CONSOLE_READCONSOLE_CONTROL;
 
-#[link(name = "ws2_32")]
-#[link(name = "userenv")]
-#[link(name = "shell32")]
-#[link(name = "advapi32")]
-#[cfg(not(cargobuild))]
-extern {}
-
 extern "system" {
     pub fn WSAStartup(wVersionRequested: WORD,
                       lpWSAData: LPWSADATA) -> c_int;