fix: libraft-headers-only declares unused C compiler

[andrewwhitecdw]

This PR addresses the following issue in conda/recipes/libraft/recipe.yaml: libraft-headers-only declares unused C compiler.

Changes

• conda/recipes/libraft/recipe.yaml: libraft-headers-only declares unused C compiler.

Details

--- a/conda/recipes/libraft/recipe.yaml
+++ b/conda/recipes/libraft/recipe.yaml
@@ -1,19 +1,18 @@
-  - package:
-      name: libraft-headers-only
-      version: ${{ version }}
-    build:
-      script:
-        content: |
-          # Unspecified brings in all components
-          cmake --install cpp/build --component Unspecified
-          cmake --install cpp/build --component raft
-          cmake --install cpp/build --component distributed
-      string: cuda${{ cuda_major }}_${{ datetime_string }}_${{ head_rev }}
-      dynamic_linking:
-        overlinking_behavior: "error"
-    requirements:
-      build:
-        - cmake ${{ cmake_version }}
-        - ${{ compiler("c") }}
-      host:
-        - cuda-version =${{ cuda_version }}
+  - package:
+      name: libraft-headers-only
+      version: ${{ version }}
+    build:
+      script:
+        content: |
+          # Unspecified brings in all components
+          cmake --install cpp/build --component Unspecified
+          cmake --install cpp/build --component raft
+          cmake --install cpp/build --component distributed
+      string: cuda${{ cuda_major }}_${{ datetime_string }}_${{ head_rev }}
+      dynamic_linking:
+        overlinking_behavior: "error"
+    requirements:
+      build:
+        - cmake ${{ cmake_version }}
+      host:
+        - cuda-version =${{ cuda_version }}

Tests

Let me know if you want tests added for this fix or not.

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📥 Commits

Reviewing files that changed from the base of the PR and between e2437c4 and c5cf2ce.

📒 Files selected for processing (1)

• conda/recipes/libraft/recipe.yaml

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• conda/recipes/libraft/recipe.yaml

---

📝 Walkthrough

Summary by CodeRabbit

• Chores
  • Simplified the headers-only package build requirements by removing an unnecessary compiler dependency.

Walkthrough

The libraft-headers-only output removes the C compiler from its build requirements. The versioned CMake dependency remains.

Changes

libraft packaging

Layer / File(s)	Summary
Headers-only build requirements conda/recipes/libraft/recipe.yaml	The libraft-headers-only output keeps only the versioned CMake build requirement.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Mergeability Score: ⚪ Minimal · up to c5cf2

This localized recipe cleanup removes an unused C compiler dependency and introduces no actionable merge-blocking risk; it is merge-ready after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes removal of the unused C compiler requirement from libraft-headers-only.
Description check	✅ Passed	The description directly explains the removed build requirement and includes the relevant file and diff.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

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• Commit on current branch

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---

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[gforsyth]

Thanks for putting this in @andrewwhitecdw -- before we kick off a full CI build-and-test, can you verify locally that you can build the new recipe without the compilers metapackage available?

Copying and pasting the relevant terminal output is sufficient proof. Thanks!

[msarahan]

The common issue between #3114 #3115 and this PR is whether cmake needs the compiler to be present in order to carry out its install steps. The header package certainly does not need the compiler, but cmake might check for it anyway for the sake of platform checks. In my opinion, you should close #3114 and #3115 and incorporate those changes here. Either it'll work for all of them or none of them, and you'll save test time.