rustc: disable wasm32 if some gcc options are set

This is a temporary fix to get rustc building again with these
configurations (which notably include the default aarch64-darwin one)
without causing a stdenv rebuild.  The real fix will be to avoid
passing these options through the Clang wrapper when the target is
overridden.

It could be that there are packages that need wasm32-unknown-unknown
beyond those I've marked as broken here — it's impossible to be sure
without a full rebuild.  But this should be most of them.

8 files changed, 25 insertions, 2 deletions

diff --git a/pkgs/applications/blockchains/polkadot/default.nix b/pkgs/applications/blockchains/polkadot/default.nix
index 0e71ddb7ba3bd..9690ade2947c9 100644
--- a/pkgs/applications/blockchains/polkadot/default.nix
+++ b/pkgs/applications/blockchains/polkadot/default.nix
@@ -92,5 +92,8 @@ rustPlatform.buildRustPackage rec {
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ akru andresilva FlorianFranzen RaghavSood ];
     platforms = platforms.unix;
+    # See comment about wasm32-unknown-unknown in rustc.nix.
+    broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
   };
 }
diff --git a/pkgs/applications/misc/pagefind/default.nix b/pkgs/applications/misc/pagefind/default.nix
index 2da4e5eb7eb10..f72d999fc896b 100644
--- a/pkgs/applications/misc/pagefind/default.nix
+++ b/pkgs/applications/misc/pagefind/default.nix
@@ -120,6 +120,9 @@ rustPlatform.buildRustPackage rec {
     license = licenses.mit;
     maintainers = with maintainers; [ pbsds ];
     platforms = platforms.unix;
+    # See comment about wasm32-unknown-unknown in rustc.nix.
+    broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
     mainProgram = "pagefind";
   };
 }
diff --git a/pkgs/by-name/re/rerun/package.nix b/pkgs/by-name/re/rerun/package.nix
index 4d9c8da8041c0..6fedb10cfed12 100644
--- a/pkgs/by-name/re/rerun/package.nix
+++ b/pkgs/by-name/re/rerun/package.nix
@@ -126,5 +126,8 @@ rustPlatform.buildRustPackage rec {
     ];
     maintainers = with maintainers; [ SomeoneSerge ];
     mainProgram = "rerun";
+    # See comment about wasm32-unknown-unknown in rustc.nix.
+    broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
   };
 }
diff --git a/pkgs/by-name/su/surrealist/package.nix b/pkgs/by-name/su/surrealist/package.nix
index efd1773dee2f8..3463c7ef3b2e4 100644
--- a/pkgs/by-name/su/surrealist/package.nix
+++ b/pkgs/by-name/su/surrealist/package.nix
@@ -192,5 +192,8 @@ in stdenv.mkDerivation (finalAttrs: {
     mainProgram = "surrealist";
     maintainers = with maintainers; [ frankp ];
     platforms = platforms.linux;
+    # See comment about wasm32-unknown-unknown in rustc.nix.
+    broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
   };
 })
diff --git a/pkgs/by-name/te/tetrio-desktop/tetrio-plus.nix b/pkgs/by-name/te/tetrio-desktop/tetrio-plus.nix
index 43102d6c8a26e..832123b61c157 100644
--- a/pkgs/by-name/te/tetrio-desktop/tetrio-plus.nix
+++ b/pkgs/by-name/te/tetrio-desktop/tetrio-plus.nix
@@ -78,6 +78,9 @@ let
       license = lib.licenses.mit;
       maintainers = with lib.maintainers; [ huantian wackbyte ];
       platforms = lib.platforms.linux;
+      # See comment about wasm32-unknown-unknown in rustc.nix.
+      broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+        !stdenv.hostPlatform.gcc.thumb or true;
     };
   };
 
diff --git a/pkgs/development/compilers/rust/rustc.nix b/pkgs/development/compilers/rust/rustc.nix
index ccaf681307e70..da458211550ff 100644
--- a/pkgs/development/compilers/rust/rustc.nix
+++ b/pkgs/development/compilers/rust/rustc.nix
@@ -103,7 +103,9 @@ in stdenv.mkDerivation (finalAttrs: {
       stdenv.targetPlatform.rust.rustcTargetSpec
 
     # Other targets that don't need any extra dependencies to build.
-    ] ++ optionals (!fastCross) [
+    # Temporarily broken if some global compiler flags are set:
+    # https://github.com/NixOS/nixpkgs/pull/317273
+    ] ++ optionals (!fastCross && !lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] && stdenv.hostPlatform.gcc.thumb or true) [
       "wasm32-unknown-unknown"
 
     # (build!=target): When cross-building a compiler we need to add
diff --git a/pkgs/servers/ldap/lldap/default.nix b/pkgs/servers/ldap/lldap/default.nix
index 5a0444235967d..28f05322c77c2 100644
--- a/pkgs/servers/ldap/lldap/default.nix
+++ b/pkgs/servers/ldap/lldap/default.nix
@@ -84,6 +84,9 @@ in rustPlatform.buildRustPackage (commonDerivationAttrs // {
     changelog = "https://github.com/lldap/lldap/blob/v${lldap.version}/CHANGELOG.md";
     license = licenses.gpl3Only;
     platforms = platforms.linux;
+    # See comment about wasm32-unknown-unknown in rustc.nix.
+    broken = lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
     maintainers = with maintainers; [ bendlas ];
     mainProgram = "lldap";
   };
diff --git a/pkgs/servers/teleport/generic.nix b/pkgs/servers/teleport/generic.nix
index 84b57160d4fa0..94ca520964cd7 100644
--- a/pkgs/servers/teleport/generic.nix
+++ b/pkgs/servers/teleport/generic.nix
@@ -180,6 +180,9 @@ buildGoModule rec {
     platforms = platforms.unix;
     # go-libfido2 is broken on platforms with less than 64-bit because it defines an array
     # which occupies more than 31 bits of address space.
-    broken = stdenv.hostPlatform.parsed.cpu.bits < 64;
+    broken = stdenv.hostPlatform.parsed.cpu.bits < 64 ||
+      # See comment about wasm32-unknown-unknown in rustc.nix.
+      lib.any (a: lib.hasAttr a stdenv.hostPlatform.gcc) [ "cpu" "float-abi" "fpu" ] ||
+      !stdenv.hostPlatform.gcc.thumb or true;
   };
 }