if(NOT DEFINED CMAKE_MINIMUM_REQUIRED_VERSION)
  cmake_minimum_required(VERSION 2.8.7...${GDCM_MAX_VALIDATED_CMAKE_VERSION})
endif()

if(NOT ZLIB_NAMESPACE)
  set(ZLIB_NAMESPACE "ZLIB")
  set(ZLIB_STANDALONE 1)
endif()
# In all cases:
string(TOLOWER ${ZLIB_NAMESPACE} ZLIB_LIBRARY_NAME)

project(${ZLIB_NAMESPACE} C)

# Do full dependency headers.
include_regular_expression("^.*$")

#============================================================================
# zlib
#============================================================================

set(ZLIB_PUBLIC_HDRS
    ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
    zlib.h
)
set(ZLIB_PRIVATE_HDRS
    crc32.h
    deflate.h
    gzguts.h
    inffast.h
    inffixed.h
    inflate.h
    inftrees.h
    trees.h
    zutil.h
)
set(ZLIB_SRCS
    adler32.c
    compress.c
    crc32.c
    deflate.c
    inflate.c
    infback.c
    inftrees.c
    inffast.c
    trees.c
    uncompr.c
    zutil.c
)

# for windows add the .def and .rc files to the source list
# if building shared libs
if(WIN32)
  if(BUILD_SHARED_LIBS)
    set(ZLIB_DLL 1)
    if(NOT UNIX)
      if(NOT BORLAND)
        if(NOT MINGW)
          set(ZLIB_SRCS ${ZLIB_SRCS} zlib.def zlib.rc  )
        endif()
      endif()
    endif()
  endif()
endif()

configure_file(
  ${CMAKE_CURRENT_SOURCE_DIR}/zconf.in.h
  ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
)
include_directories(
 ${CMAKE_CURRENT_BINARY_DIR}
)


add_library(${ZLIB_LIBRARY_NAME} ${ZLIB_SRCS})
set_target_properties(${ZLIB_LIBRARY_NAME} PROPERTIES ${GDCM_LIBRARY_PROPERTIES})
set_target_properties(${ZLIB_LIBRARY_NAME} PROPERTIES LINKER_LANGUAGE C)

if(NOT ZLIB_INSTALL_NO_LIBRARIES)
  install(TARGETS ${ZLIB_LIBRARY_NAME}
    EXPORT ${GDCM_TARGETS_NAME}
    RUNTIME DESTINATION ${ZLIB_INSTALL_BIN_DIR} COMPONENT Applications
    LIBRARY DESTINATION ${ZLIB_INSTALL_LIB_DIR} COMPONENT Libraries
    ARCHIVE DESTINATION ${ZLIB_INSTALL_LIB_DIR} COMPONENT DebugDevel
  ${CPACK_NAMELINK_TYPE}
  )
endif()