# ===-----------------------------------------------------------------------===#
# Distributed under the 3-Clause BSD License. See accompanying file LICENSE or
# copy at https://opensource.org/licenses/BSD-3-Clause).
# SPDX-License-Identifier: BSD-3-Clause
# ===-----------------------------------------------------------------------===#

# ------------------------------------------------------------------------------
# Reduce build time by using ccache when available
# ------------------------------------------------------------------------------

find_program(CCACHE_TOOL_PATH ccache)

if(NOT WIN32 AND USE_CCACHE AND CCACHE_TOOL_PATH)
    message(STATUS "Using ccache (${CCACHE_TOOL_PATH}) (via wrapper).")
    # see https://github.com/TheLartians/Ccache.cmake enables CCACHE support
    # through the USE_CCACHE flag possible values are: YES, NO or equivalent
    include("${CMAKE_CURRENT_LIST_DIR}/CPM.cmake")
    cpmaddpackage("gh:TheLartians/Ccache.cmake@1.2.3")
elseif(WIN32 AND USE_CCACHE AND CCACHE_TOOL_PATH)
    set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_TOOL_PATH} CACHE STRING "" FORCE)
    set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_TOOL_PATH} CACHE STRING "" FORCE)
    message(STATUS "Using ccache (${CCACHE_TOOL_PATH}).")
endif()