From f6f689f50923c2f55e874eb40417fb6a34c2728f Mon Sep 17 00:00:00 2001
From: Morgan Funtowicz <morgan@huggingface.co>
Date: Fri, 2 Aug 2024 22:10:01 +0000
Subject: [PATCH] (build) setup ccache if available

---
 backends/trtllm/CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/backends/trtllm/CMakeLists.txt b/backends/trtllm/CMakeLists.txt
index 425b2d7b9..92a6b65a3 100644
--- a/backends/trtllm/CMakeLists.txt
+++ b/backends/trtllm/CMakeLists.txt
@@ -1,5 +1,13 @@
 cmake_minimum_required(VERSION 3.20)
 
+if (NOT DEFINED CMAKE_CXX_COMPILER_LAUNCHER AND CMAKE_BUILD_TYPE STREQUAL "Debug")
+    find_program(CCACHE_EXECUTABLE "ccache")
+    if (CCACHE_EXECUTABLE)
+        message(STATUS "Using ccache")
+        set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_EXECUTABLE}" CACHE PATH "Path to ccache" FORCE)
+    endif ()
+endif ()
+
 project(tgi-trtllm-backend VERSION 1.0.0)
 set(CMAKE_CXX_STANDARD 20)