Correct target_family mess

src/librustc/session/config.rs

@@ -943,26 +943,20 @@ pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
     let vendor = &sess.target.target.target_vendor;
     let max_atomic_width = sess.target.target.max_atomic_width();
 
-    let fam = if let Some(ref fam) = sess.target.target.options.target_family {
-        Symbol::intern(fam)
-    } else if sess.target.target.options.is_like_windows {
-        Symbol::intern("windows")
-    } else {
-        Symbol::intern("unix")
-    };
-
     let mut ret = HashSet::new();
     // Target bindings.
     ret.insert((Symbol::intern("target_os"), Some(Symbol::intern(os))));
+    if let Some(fam) = sess.target.target.options.target_family {
         ret.insert((Symbol::intern("target_family"), Some(fam)));
+        if fam == "windows" || fam == "unix" {
+            ret.insert((fam, None));
+        }
+    }
     ret.insert((Symbol::intern("target_arch"), Some(Symbol::intern(arch))));
     ret.insert((Symbol::intern("target_endian"), Some(Symbol::intern(end))));
     ret.insert((Symbol::intern("target_pointer_width"), Some(Symbol::intern(wordsz))));
     ret.insert((Symbol::intern("target_env"), Some(Symbol::intern(env))));
     ret.insert((Symbol::intern("target_vendor"), Some(Symbol::intern(vendor))));
-    if fam == "windows" || fam == "unix" {
-        ret.insert((fam, None));
-    }
     if sess.target.target.options.has_elf_tls {
         ret.insert((Symbol::intern("target_thread_local"), None));
     }

src/librustc_back/target/apple_base.rs

@@ -37,6 +37,7 @@ pub fn opts() -> TargetOptions {
         function_sections: false,
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         is_like_osx: true,
         has_rpath: true,
         dll_prefix: "lib".to_string(),

src/librustc_back/target/bitrig_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         position_independent_executables: true,

src/librustc_back/target/dragonfly_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         pre_link_args: vec![

src/librustc_back/target/freebsd_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         pre_link_args: vec![

src/librustc_back/target/fuchsia_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         pre_link_args: vec![

src/librustc_back/target/haiku_base.rs

@@ -17,6 +17,7 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         has_rpath: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         .. Default::default()
     }

src/librustc_back/target/linux_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         pre_link_args: vec![

src/librustc_back/target/netbsd_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         pre_link_args: vec![

src/librustc_back/target/openbsd_base.rs

@@ -15,6 +15,7 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         dynamic_linking: true,
         executables: true,
+        target_family: Some("unix".to_string()),
         linker_is_gnu: true,
         has_rpath: true,
         is_like_openbsd: true,

src/librustc_back/target/redox_base.rs

@@ -38,7 +38,7 @@ pub fn opts() -> TargetOptions {
         relocation_model: "static".to_string(),
         disable_redzone: true,
         eliminate_frame_pointer: false,
-        target_family: Some("redox".to_string()),
+        target_family: None,
         linker_is_gnu: true,
         no_default_libraries: true,
         lib_allocation_crate: "alloc_system".to_string(),

src/librustc_back/target/solaris_base.rs

@@ -16,6 +16,7 @@ pub fn opts() -> TargetOptions {
         dynamic_linking: true,
         executables: true,
         has_rpath: true,
+        target_family: Some("unix".to_string()),
         is_like_solaris: true,
         exe_allocation_crate: super::maybe_jemalloc(),
 

src/librustc_back/target/windows_base.rs

@@ -24,6 +24,7 @@ pub fn opts() -> TargetOptions {
         staticlib_prefix: "".to_string(),
         staticlib_suffix: ".lib".to_string(),
         no_default_libraries: true,
+        target_family: Some("windows".to_string()),
         is_like_windows: true,
         allows_weak_linkage: false,
         pre_link_args: vec![

src/librustc_back/target/windows_msvc_base.rs

@@ -53,6 +53,7 @@ pub fn opts() -> TargetOptions {
         exe_suffix: ".exe".to_string(),
         staticlib_prefix: "".to_string(),
         staticlib_suffix: ".lib".to_string(),
+        target_family: Some("windows".to_string()),
         is_like_windows: true,
         is_like_msvc: true,
         pre_link_args: vec![