From e737e688eee086be7cbd1e5e8fd56af9c86843f8 Mon Sep 17 00:00:00 2001
From: Dillon Cullinan <dcullinan92@gmail.com>
Date: Mon, 22 Feb 2021 16:16:37 -0500
Subject: [PATCH] ENH Build with Ninja & Pass ccache variables to conda recipe
 (#705)

Changes:

- Enables `ninja` build system
- Exposes `ccache` environment variables to the conda build

These changes are required to allow `ccache` to function correctly and have a high cache hitrate during builds.

Authors:
  - Dillon Cullinan (@dillon-cullinan)

Approvers:
  - Jordan Jacobelli (@Ethyling)
  - Keith Kraus (@kkraus14)
  - Mark Harris (@harrism)

URL: https://github.com/rapidsai/rmm/pull/705
---
 ci/cpu/build.sh                | 3 ++-
 conda/recipes/librmm/meta.yaml | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/ci/cpu/build.sh b/ci/cpu/build.sh
index e77281c75..71a2daf53 100755
--- a/ci/cpu/build.sh
+++ b/ci/cpu/build.sh
@@ -5,9 +5,10 @@
 ######################################
 set -e
 
-# Set path and build parallel level
+# Set path, build parallel level and build generator
 export PATH=/opt/conda/bin:/usr/local/cuda/bin:$PATH
 export PARALLEL_LEVEL=${PARALLEL_LEVEL:-4}
+export CMAKE_GENERATOR="Ninja"
 
 # Set home to the job's workspace
 export HOME=$WORKSPACE
diff --git a/conda/recipes/librmm/meta.yaml b/conda/recipes/librmm/meta.yaml
index 73d479725..7f7e8f0cf 100644
--- a/conda/recipes/librmm/meta.yaml
+++ b/conda/recipes/librmm/meta.yaml
@@ -18,6 +18,13 @@ build:
     - CUDAHOSTCXX
     - PARALLEL_LEVEL
     - VERSION_SUFFIX
+    - CCACHE_DIR
+    - CCACHE_NOHASHDIR
+    - CCACHE_COMPILERCHECK
+    - CMAKE_GENERATOR
+    - CMAKE_C_COMPILER_LAUNCHER
+    - CMAKE_CXX_COMPILER_LAUNCHER
+    - CMAKE_CUDA_COMPILER_LAUNCHER
   run_exports:
     - {{ pin_subpackage("librmm", max_pin="x.x") }}