From d74c6b5ca52451ff1fb683b22083da86005f229b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joshua=20Vanda=C3=ABle?= <joshua@vandaele.software>
Date: Thu, 8 Jan 2026 16:37:38 +0100
Subject: [PATCH] CCache: Add support for Objective-C/Objective-C++

---
 CMake/CCache.cmake | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/CMake/CCache.cmake b/CMake/CCache.cmake
index 37ad51ee09..cfb29e2101 100644
--- a/CMake/CCache.cmake
+++ b/CMake/CCache.cmake
@@ -1,17 +1,13 @@
 find_program(CCACHE_BIN NAMES ccache sccache)
 if(CCACHE_BIN)
-  # Official ccache recommendation is to set CMAKE_C(XX)_COMPILER_LAUNCHER
-  if (NOT CMAKE_C_COMPILER_LAUNCHER MATCHES "ccache")
-    list(INSERT CMAKE_C_COMPILER_LAUNCHER 0 "${CCACHE_BIN}")
-  endif()
-
-  if (NOT CMAKE_CXX_COMPILER_LAUNCHER MATCHES "ccache")
-    list(INSERT CMAKE_CXX_COMPILER_LAUNCHER 0 "${CCACHE_BIN}")
-  endif()
-
-  # ccache uses -I when compiling without preprocessor, which makes clang complain.
-  if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Qunused-arguments -fcolor-diagnostics")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Qunused-arguments -fcolor-diagnostics")
-  endif()
+  set(_CCACHE_SUPPORTED_LAUCHERS C CXX OBJC OBJCXX)
+  foreach(LAUNCHER ${_CCACHE_SUPPORTED_LAUCHERS})
+    if (NOT CMAKE_${LAUNCHER}_COMPILER_LAUNCHER MATCHES "ccache")
+      list(INSERT CMAKE_${LAUNCHER}_COMPILER_LAUNCHER 0 ${CCACHE_BIN})
+    endif()
+    # ccache uses -I when compiling without preprocessor, which makes clang complain.
+    if("${CMAKE_${LAUNCHER}_COMPILER_ID}" MATCHES "Clang")
+      set(CMAKE_${LAUNCHER}_FLAGS "${CMAKE_${LAUNCHER}_FLAGS} -Qunused-arguments -fcolor-diagnostics")
+    endif()
+  endforeach()
 endif()