set(SOURCES
    jcapimin.c
    jdapimin.c
    jdmarker.c
    jdtrans.c
    jidctflt.c
    jmemmgr.c
    jquant2.c
    jcapistd.c
    jcinit.c
    jcparam.c
    jdapistd.c
    jddctmgr.c
    jdmaster.c
    jerror.c
    jidctfst.c
    jutils.c
    jccoefct.c
    jcmainct.c
    jcphuff.c
    jdatadst.c
    jdhuff.c
    jdmerge.c
    jidctint.c
    jccolor.c
    jcmarker.c
    jcprepct.c
    jdatasrc.c
    jdphuff.c
    jfdctflt.c
    jidctred.c
    jcdctmgr.c
    jcmaster.c
    jcsample.c
    jdcoefct.c
    jdinput.c
    jdpostct.c
    jfdctfst.c
    jchuff.c
    jcomapi.c
    jctrans.c
    jdcolor.c
    jdmainct.c
    jdsample.c
    jfdctint.c
    jmemnobs.c
    jquant1.c)

set(HEADERS
    jchuff.h
    jconfig.h
    jdct.h
    jmemsys.h
    jerror.h
    # jmorecfg.h
    jversion.h
    jdhuff.h
    jpegint.h
    jinclude.h
    jpeglib.h)

set(SOURCES_12)
foreach (_src IN LISTS SOURCES)
  string(REPLACE ".c" "12.c" _dst ${_src})
  file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/../libjpeg/${_src}" DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
  file(RENAME "${CMAKE_CURRENT_BINARY_DIR}/${_src}" "${CMAKE_CURRENT_BINARY_DIR}/${_dst}")
  set(SOURCES_12 ${SOURCES_12} "${CMAKE_CURRENT_BINARY_DIR}/${_dst}")
endforeach ()

foreach (_src IN LISTS HEADERS)
  file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/../libjpeg/${_src}" DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
endforeach ()

configure_file(jmorecfg.h.12 ${CMAKE_CURRENT_BINARY_DIR}/jmorecfg.h COPYONLY)

add_library(libjpeg12 OBJECT ${SOURCES_12})

set_property(TARGET libjpeg12 PROPERTY UNITY_BUILD OFF)

target_include_directories(libjpeg12 PRIVATE ${CMAKE_CURRENT_BINARY_DIR} $<TARGET_PROPERTY:cpl,SOURCE_DIR>
                                             $<TARGET_PROPERTY:cpl,BINARY_DIR>)
target_compile_options(libjpeg12 PRIVATE ${GDAL_C_WARNING_FLAGS} ${GDAL_SOFTWARNFLAGS})
target_compile_definitions(libjpeg12 PRIVATE -DJPEG_DUAL_MODE_8_12)

target_compile_definitions(libjpeg12 PRIVATE -DDEFAULT_MAX_MEM=500000000L)
set_property(TARGET libjpeg12 PROPERTY POSITION_INDEPENDENT_CODE ${GDAL_OBJECT_LIBRARIES_POSITION_INDEPENDENT_CODE})
target_sources(${GDAL_LIB_TARGET_NAME} PRIVATE $<TARGET_OBJECTS:libjpeg12>)