From 626c5c59c6d716ba870b77f53325dcc9f4e26502 Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Wed, 19 Feb 2025 19:20:01 +0100
Subject: [PATCH] Relax rule on gcc-runtime

It might happen that gcc-runtime is just a dep
of another runtime, and not used as a compiler.
---
 lib/spack/spack/solver/concretize.lp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/spack/spack/solver/concretize.lp b/lib/spack/spack/solver/concretize.lp
index ab10ecbc905..6e88247e0c2 100644
--- a/lib/spack/spack/solver/concretize.lp
+++ b/lib/spack/spack/solver/concretize.lp
@@ -1319,6 +1319,7 @@ has_built_packages() :- build(X), not external(X).
 
 % The "gcc" linked to "gcc-runtime" must be used by at least another package
 :- attr("depends_on", node(X, "gcc-runtime"), node(Y, "gcc"), "build"),
+   node_compiler(_, node(_, "gcc")),
    not 2 { attr("depends_on", PackageNode, node(Y, "gcc"), "build") : attr("node", PackageNode) }.