From dfd397ebfc82060ab5de92bf841713984eeafe25 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julian=20Gro=C3=9F?= <julian.g@posteo.de>
Date: Wed, 12 Jun 2024 20:29:53 +0200
Subject: [PATCH] Remove broken ccache makro. This threw a whole bunch of
 errors when being used, and made use of questionable settings, some of which
 I couldn't find documentation for. It has also become really easy to use
 ccache with cmake through the following environment variables;
 CMAKE_CXX_COMPILER_LAUNCHER=ccache CMAKE_C_COMPILER_LAUNCHER=ccache

---
 cmake/compiler.cmake               |  4 ---
 cmake/macros/ConfigureCCache.cmake | 45 ------------------------------
 cmake/templates/launch-c.in        | 12 --------
 cmake/templates/launch-cxx.in      | 12 --------
 4 files changed, 73 deletions(-)
 delete mode 100644 cmake/macros/ConfigureCCache.cmake
 delete mode 100644 cmake/templates/launch-c.in
 delete mode 100644 cmake/templates/launch-cxx.in

diff --git a/cmake/compiler.cmake b/cmake/compiler.cmake
index 5108253403..316b0632c6 100644
--- a/cmake/compiler.cmake
+++ b/cmake/compiler.cmake
@@ -6,10 +6,6 @@ if (NOT "${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
   message( FATAL_ERROR "Only 64 bit builds supported." )
 endif()
 
-if (USE_CCACHE OR "$ENV{USE_CCACHE}")
-  configure_ccache()
-endif()
-
 if (WIN32)
   add_definitions(-DNOMINMAX -D_CRT_SECURE_NO_WARNINGS)
 
diff --git a/cmake/macros/ConfigureCCache.cmake b/cmake/macros/ConfigureCCache.cmake
deleted file mode 100644
index bec159ef09..0000000000
--- a/cmake/macros/ConfigureCCache.cmake
+++ /dev/null
@@ -1,45 +0,0 @@
-#
-#  ConfigureCCache.cmake
-#  cmake/macros
-#
-#  Created by Clement Brisset on 10/10/18.
-#  Copyright 2018 High Fidelity, Inc.
-#
-#  Distributed under the Apache License, Version 2.0.
-#  See the accompanying file LICENSE or http:#www.apache.org/licenses/LICENSE-2.0.html
-#
-
-macro(configure_ccache)
-  find_program(CCACHE_PROGRAM ccache)
-  if(CCACHE_PROGRAM)
-    message(STATUS "Configuring ccache")
-
-    # Set up wrapper scripts
-    set(C_LAUNCHER   "${CCACHE_PROGRAM}")
-    set(CXX_LAUNCHER "${CCACHE_PROGRAM}")
-    
-    set(LAUNCH_C_IN "${CMAKE_CURRENT_SOURCE_DIR}/cmake/templates/launch-c.in")
-    set(LAUNCH_CXX_IN "${CMAKE_CURRENT_SOURCE_DIR}/cmake/templates/launch-cxx.in")
-    set(LAUNCH_C "${CMAKE_BINARY_DIR}/CMakeFiles/launch-c")
-    set(LAUNCH_CXX "${CMAKE_BINARY_DIR}/CMakeFiles/launch-cxx")
-
-    configure_file(${LAUNCH_C_IN} ${LAUNCH_C})
-    configure_file(${LAUNCH_CXX_IN} ${LAUNCH_CXX})
-    execute_process(COMMAND chmod a+rx ${LAUNCH_C} ${LAUNCH_CXX})
-
-    if(CMAKE_GENERATOR STREQUAL "Xcode")
-      # Set Xcode project attributes to route compilation and linking
-      # through our scripts
-      set(CMAKE_XCODE_ATTRIBUTE_CC ${LAUNCH_C})
-      set(CMAKE_XCODE_ATTRIBUTE_CXX ${LAUNCH_CXX})
-      set(CMAKE_XCODE_ATTRIBUTE_LD ${LAUNCH_C})
-      set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS ${LAUNCH_CXX})
-    else()
-      # Support Unix Makefiles and Ninja
-      set(CMAKE_C_COMPILER_LAUNCHER ${LAUNCH_C})
-      set(CMAKE_CXX_COMPILER_LAUNCHER ${LAUNCH_CXX})
-    endif()
-  else()
-    message(WARNING "Could not find ccache")
-  endif()
-endmacro()
diff --git a/cmake/templates/launch-c.in b/cmake/templates/launch-c.in
deleted file mode 100644
index 6c91d96dd9..0000000000
--- a/cmake/templates/launch-c.in
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-
-# Xcode generator doesn't include the compiler as the
-# first argument, Ninja and Makefiles do. Handle both cases.
-if [[ "$1" = "${CMAKE_C_COMPILER}" ]] ; then
-    shift
-fi
-
-export CCACHE_CPP2=true
-export CCACHE_HARDLINK=true
-export CCACHE_SLOPPINESS=file_macro,time_macros,include_file_mtime,include_file_ctime,file_stat_matches
-exec "${C_LAUNCHER}" "${CMAKE_C_COMPILER}" "$@"
diff --git a/cmake/templates/launch-cxx.in b/cmake/templates/launch-cxx.in
deleted file mode 100644
index 4215d89c80..0000000000
--- a/cmake/templates/launch-cxx.in
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-
-# Xcode generator doesn't include the compiler as the
-# first argument, Ninja and Makefiles do. Handle both cases.
-if [[ "$1" = "${CMAKE_CXX_COMPILER}" ]] ; then
-    shift
-fi
-
-export CCACHE_CPP2=true
-export CCACHE_HARDLINK=true
-export CCACHE_SLOPPINESS=file_macro,time_macros,include_file_mtime,include_file_ctime,file_stat_matches
-exec "${CXX_LAUNCHER}" "${CMAKE_CXX_COMPILER}" "$@"