From 72da7a668d5e12322c9b3aa909c89fbcff5dfc3d Mon Sep 17 00:00:00 2001
From: Patrick Stewart <patrick@rfcreations.com>
Date: Wed, 17 Jan 2024 13:18:35 +0000
Subject: [PATCH] cmake: Only use ccache for C++

Setting RULE_LAUNCH_* breaks the build of anything other than C/C++ that ccache doesn't support, e.g. rc.exe on windows. The global property leaks out and breaks any consuming project.
---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 90ec3d93..091f2b99 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,8 +76,8 @@ find_package(Boost 1.56 COMPONENTS ${immer_boost_components})
 find_program(CCACHE ccache)
 if (CCACHE)
   message(STATUS "Using ccache: ${CCACHE}")
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE})
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE})
+  set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE})
+  set(CMAKE_CXX_LINKER_LAUNCHER ${CCACHE})
 else()
   message(STATUS "Could not find ccache")
 endif()