From 0e6302d1d5d9ed36722bae8ed2ccf6aa30d432df Mon Sep 17 00:00:00 2001
From: Laurent Rineau <laurent.rineau@cgal.org>
Date: Thu, 2 Jul 2020 15:02:20 +0200
Subject: [PATCH] Remove CGAL_REFERENCE_CACHE_DIR

That no longer works with header-only, anyway. Now we use the option
`-C` of CMake, with a small file loaded from the environment variable
`INIT_FILE`.
---
 Installation/CMakeLists.txt             | 37 -------------------------
 Scripts/developer_scripts/autotest_cgal | 15 +---------
 2 files changed, 1 insertion(+), 51 deletions(-)

diff --git a/Installation/CMakeLists.txt b/Installation/CMakeLists.txt
index 42dfeb8190a..3556338d667 100644
--- a/Installation/CMakeLists.txt
+++ b/Installation/CMakeLists.txt
@@ -382,8 +382,6 @@ include(${CGAL_MODULES_DIR}/CGAL_Macros.cmake)
 include(${CGAL_MODULES_DIR}/CGAL_enable_end_of_configuration_hook.cmake)
 cgal_setup_module_path()
 
-message( STATUS "CGAL_REFERENCE_CACHE_DIR=${CGAL_REFERENCE_CACHE_DIR}" )
-
 if ( RUNNING_CGAL_AUTO_TEST )
   message(STATUS "Operating system:")
   execute_process(COMMAND uname -a
@@ -392,41 +390,6 @@ if ( RUNNING_CGAL_AUTO_TEST )
     ERROR_VARIABLE uname_a)
   message(STATUS "${uname_a}")
   CGAL_display_compiler_version()
-  if ( NOT "${CGAL_REFERENCE_CACHE_DIR}" STREQUAL "" )
-    if ( EXISTS ${CGAL_REFERENCE_CACHE_DIR} )
-      if ( EXISTS ${CGAL_REFERENCE_CACHE_DIR}/CMakeCache.txt )
-        message( STATUS "Loading reference cache from ${CGAL_REFERENCE_CACHE_DIR}" )
-        load_cache( ${CGAL_REFERENCE_CACHE_DIR}
-          EXCLUDE CGAL_Core_LIBRARY
-                  CGAL_CORE_PACKAGE_DIR
-                  WITH_CGAL_Core
-                  CGAL_INSTALLATION_PACKAGE_DIR
-                  CGAL_MAINTENANCE_PACKAGE_DIR
-                  CGAL_PDB_BINARY_DIR
-                  CGAL_PDB_SOURCE_DIR
-                  CGAL_BINARY_DIR
-                  CGAL_SOURCE_DIR)
-#        message("List of cache variables:")
-
-        ## The following lines removes nasty loaded cache values. We do not
-        ## want that the current build tree depends on binaries that were
-        ## build in the reference build tree.
-        get_property(cache_variables DIRECTORY PROPERTY CACHE_VARIABLES)
-        foreach(var ${cache_variables})
-#          get_property(var_value CACHE ${var} PROPERTY VALUE)
-#          get_property(type CACHE ${var} PROPERTY TYPE)
-          string(REGEX MATCH "^CGAL(_.*_(DEPENDS|BINARY_DIR)|_.*LIBRARY)$" var_name_matches ${var})
-          if(var_name_matches)
-            unset(${var} CACHE)
-#          else()
-#            message("${var}:${var_type}=${var_value}")
-          endif()
-        endforeach()
-
-
-      endif()
-    endif()
-  endif()
 endif()
 
 include(CGAL_Common)
diff --git a/Scripts/developer_scripts/autotest_cgal b/Scripts/developer_scripts/autotest_cgal
index 0cae40110f4..558256bc1b5 100755
--- a/Scripts/developer_scripts/autotest_cgal
+++ b/Scripts/developer_scripts/autotest_cgal
@@ -490,13 +490,7 @@ build_cgal_on_host()
 
       CGAL_BINARY_DIR="${CGAL_BINARY_DIR_BASE}/${PLATFORM}"
 
-      if [ -d "${REFERENCE_PLATFORMS_DIR}/${PLATFORM}" ] ; then
-        CGAL_REFERENCE_CACHE_DIR="${REFERENCE_PLATFORMS_DIR}/${PLATFORM}"
-      else
-        CGAL_REFERENCE_CACHE_DIR=""
-      fi
-
-      log "${ACTUAL_LOGFILE}" "Building cgal libs on host ${HOST} and platform ${PLATFORM}\nUnder ${CGAL_BINARY_DIR}\nUsing reference cache directory ${CGAL_REFERENCE_CACHE_DIR}"
+      log "${ACTUAL_LOGFILE}" "Building cgal libs on host ${HOST} and platform ${PLATFORM}\nUnder ${CGAL_BINARY_DIR}\n"
 
       if [ -f "${CGAL_BINARY_DIR}/localbuildscript" ] ; then
         log "${ACTUAL_LOGFILE}" "WARNING! Already built on platform ${PLATFORM}."
@@ -514,19 +508,12 @@ if [ -z "\$CMAKE_GENERATOR" ]; then
   CMAKE_GENERATOR='${CMAKE_GENERATOR}';
 fi
 MAKE_CMD='${MAKE_CMD}';
-if [ -n "${IS_CYGWIN}" ]; then
-  CGAL_REFERENCE_CACHE_DIR=\$( cygpath -w '${CGAL_REFERENCE_CACHE_DIR}' );
-else
-  CGAL_REFERENCE_CACHE_DIR='${CGAL_REFERENCE_CACHE_DIR}';\
-fi
 
 export CMAKE_GENERATOR;
 export MAKE_CMD;
 export CGAL_BINARY_DIR;
-export CGAL_REFERENCE_CACHE_DIR;
 cd '${CGAL_BINARY_DIR}';
 cmake \${INIT_FILE:+"-C\${INIT_FILE}"} '${CMAKE_GENERATOR}' -DRUNNING_CGAL_AUTO_TEST=TRUE \\
-                           -DCGAL_REFERENCE_CACHE_DIR="\$CGAL_REFERENCE_CACHE_DIR" \\
                            VERBOSE=1 \\
                            ../../..;
 ${MAKE_CMD} VERBOSE=ON -k -fMakefile  ;