Merge staging-next into staging

pkgs/development/compilers/gcc/common/configure-flags.nix

@@ -27,6 +27,16 @@
 assert cloog != null -> stdenv.lib.versionOlder version "5";
 assert langJava -> stdenv.lib.versionOlder version "7";
 
+# Note [Windows Exception Handling]
+# sjlj (short jump long jump) exception handling makes no sense on x86_64,
+# it's forcably slowing programs down as it produces a constant overhead.
+# On x86_64 we have SEH (Structured Exception Handling) and we should use
+# that. On i686, we do not have SEH, and have to use sjlj with dwarf2.
+# Hence it's now conditional on x86_32 (i686 is 32bit).
+#
+# ref: https://stackoverflow.com/questions/15670169/what-is-difference-between-sjlj-vs-dwarf-vs-seh
+
+
 let
   inherit (stdenv)
     buildPlatform hostPlatform targetPlatform
@@ -58,8 +68,16 @@ let
       "--with-gnu-as"
       "--with-gnu-ld"
       "--disable-debug"
-      "--enable-sjlj-exceptions"
       "--disable-win32-registry"
+      "--enable-hash-synchronization"
+      "--enable-libssp"
+      "--disable-nls"
+      # To keep ABI compatibility with upstream mingw-w64
+      "--enable-fully-dynamic-string"      
+    ] ++ lib.optionals (crossMingw && targetPlatform.isx86_32) [
+      # See Note [Windows Exception Handling]
+      "--enable-sjlj-exceptions"
+      "--with-dwarf2"
     ] else [
       (if crossDarwin then "--with-sysroot=${lib.getLib libcCross}/share/sysroot"
        else                "--with-headers=${lib.getDev libcCross}${libcCross.incdir or "/include"}")
@@ -80,14 +98,6 @@ let
     ] ++ lib.optionals (targetPlatform.libc == "musl") [
       # musl at least, disable: https://git.buildroot.net/buildroot/commit/?id=873d4019f7fb00f6a80592224236b3ba7d657865
       "--disable-libmpx"
-    ] ++ lib.optionals crossMingw [
-      "--enable-sjlj-exceptions"
-      "--enable-hash-synchronization"
-      "--enable-libssp"
-      "--disable-nls"
-      "--with-dwarf2"
-      # To keep ABI compatibility with upstream mingw-w64
-      "--enable-fully-dynamic-string"
     ] ++ lib.optional (targetPlatform.libc == "newlib") "--with-newlib"
       ++ lib.optional (targetPlatform.libc == "avrlibc") "--with-avrlibc"
     );

pkgs/development/compilers/idris2/default.nix

@@ -22,7 +22,8 @@ stdenv.mkDerivation rec {
     patchShebangs --build tests
   '';
 
-  makeFlags = [ "PREFIX=$(out)" ];
+  makeFlags = [ "PREFIX=$(out)" ]
+    ++ stdenv.lib.optional stdenv.isDarwin "OS=";
 
   # The name of the main executable of pkgs.chez is `scheme`
   buildFlags = [ "bootstrap-build" "SCHEME=scheme" ];
@@ -36,9 +37,9 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A purely functional programming language with first class types";
-    homepage = https://github.com/idris-lang/Idris2;
+    homepage = "https://github.com/idris-lang/Idris2";
     license = stdenv.lib.licenses.bsd3;
     maintainers = with stdenv.lib.maintainers; [ wchresta ];
+    inherit (chez.meta) platforms;
   };
 }
-

pkgs/development/compilers/rust/rls/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, rustPlatform
+{ stdenv, makeWrapper, fetchFromGitHub, rustPlatform
 , openssh, openssl, pkgconfig, cmake, zlib, curl, libiconv
 , CoreFoundation, Security }:
 
@@ -24,7 +24,7 @@ rustPlatform.buildRustPackage {
   CARGO_BUILD_RUSTFLAGS = if stdenv.isDarwin then "-C rpath" else null;
 
   nativeBuildInputs = [ pkgconfig cmake ];
-  buildInputs = [ openssh openssl curl zlib libiconv rustPlatform.rust.rustc.llvm ]
+  buildInputs = [ openssh openssl curl zlib libiconv makeWrapper rustPlatform.rust.rustc.llvm ]
     ++ (stdenv.lib.optionals stdenv.isDarwin [ CoreFoundation Security ]);
 
   doCheck = true;
@@ -34,6 +34,11 @@ rustPlatform.buildRustPackage {
     $out/bin/rls --version
   '';
 
+  RUST_SRC_PATH = rustPlatform.rustcSrc;
+  postInstall = ''
+    wrapProgram $out/bin/rls --set-default RUST_SRC_PATH ${rustPlatform.rustcSrc}
+  '';
+
   meta = with stdenv.lib; {
     description = "Rust Language Server - provides information about Rust programs to IDEs and other tools";
     homepage = "https://github.com/rust-lang/rls/";