# Download and build Jemalloc

set(JEMALLOC_VERSION 5.3.0)
set(JEMALLOC_NAME jemalloc-${JEMALLOC_VERSION})
set(JEMALLOC_TAR_PATH ${DEP_ROOT_DIR}/${JEMALLOC_NAME}.tar.bz2)

if(NOT EXISTS ${JEMALLOC_TAR_PATH})
    message(STATUS "Downloading ${JEMALLOC_NAME}...")
    file(DOWNLOAD https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/${JEMALLOC_NAME}.tar.bz2
            ${JEMALLOC_TAR_PATH})
endif()

if(NOT EXISTS ${DEP_ROOT_DIR}/${JEMALLOC_NAME})
    message(STATUS "Extracting jemalloc...")
    execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzf ${JEMALLOC_TAR_PATH} WORKING_DIRECTORY ${DEP_ROOT_DIR})
endif()

if(NOT EXISTS ${DEP_ROOT_DIR}/${JEMALLOC_NAME}/Makefile)
    message("Configuring jemalloc locally...")
    # Builds with "--with-jemalloc-prefix=je_" on OSX
    execute_process(COMMAND ./configure WORKING_DIRECTORY ${DEP_ROOT_DIR}/${JEMALLOC_NAME} RESULT_VARIABLE JEMALLOC_CONFIGURE)
    if(NOT JEMALLOC_CONFIGURE EQUAL 0)
        message(FATAL_ERROR "${JEMALLOC_NAME} configure failed!")
        message("${RESULT_VARIABLE}")
    endif()
endif()

if(NOT EXISTS ${DEP_ROOT_DIR}/${JEMALLOC_NAME}/lib/libjemalloc.a)
    message("Building jemalloc locally...")
    execute_process(COMMAND make "build_lib_static" WORKING_DIRECTORY ${DEP_ROOT_DIR}/${JEMALLOC_NAME})
    if(NOT EXISTS ${DEP_ROOT_DIR}/${JEMALLOC_NAME}/lib/libjemalloc.a)
        message(FATAL_ERROR "${JEMALLOC_NAME} build failed!")
    endif()
endif()