kexectools: Disable only on RISC-V if Linux.

The isKexecable flag treated Linux without kexec as just a normal
variant, when it really should be treated as a special case incurring
complexity debt to support.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/meta.nix b/lib/meta.nix
index 199030c103a..8516cc1cd6f 100644
--- a/lib/meta.nix
+++ b/lib/meta.nix
@@ -86,4 +86,6 @@ rec {
         then { system = elem; }
         else { parsed = elem; };
     in lib.matchAttrs pattern platform;
+
+  enableIfAvailable = p: if p.meta.available or true then [ p ] else [];
 }