lib.systems.elaborate: expose canExecute predicate over isCompatible

canExecute is like isCompatible, but also checks that the Kernels are
_equal_, i.e. that both platforms use the same syscall interface. This
is crucial in order to actually be able to execute binaries for the
other platform.

isCompatible is dropped, since it has changed semantically and there's
no use case left in nixpkgs.

1 files changed, 2 insertions, 2 deletions

diff --git a/pkgs/development/libraries/capnproto/default.nix b/pkgs/development/libraries/capnproto/default.nix
index 75b5f14d67ce6..aeb9728af8269 100644
--- a/pkgs/development/libraries/capnproto/default.nix
+++ b/pkgs/development/libraries/capnproto/default.nix
@@ -17,9 +17,9 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake ]
-    ++ lib.optional (!(stdenv.hostPlatform.isCompatible stdenv.buildPlatform)) capnproto;
+    ++ lib.optional (!(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) capnproto;
 
-  cmakeFlags = lib.optional (!(stdenv.hostPlatform.isCompatible stdenv.buildPlatform)) "-DEXTERNAL_CAPNP";
+  cmakeFlags = lib.optional (!(stdenv.buildPlatform.canExecute stdenv.hostPlatform)) "-DEXTERNAL_CAPNP";
 
   # Upstream 77ac9154440bcc216fda1092fd5bb51da62ae09c, modified to apply to v0.9.1.  Drop on update.
   patches = lib.optional stdenv.hostPlatform.isMusl ./musl-no-fibers.patch;