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      1 # ----------------------------------------------------------------------------
      2 #  CMake file for libpng. See root CMakeLists.txt
      3 #
      4 # ----------------------------------------------------------------------------
      5 
      6 if(NEON)
      7   project(${PNG_LIBRARY} ASM)
      8 else()
      9   project(${PNG_LIBRARY})
     10 endif()
     11 
     12 ocv_include_directories("${CMAKE_CURRENT_SOURCE_DIR}" ${ZLIB_INCLUDE_DIRS})
     13 
     14 file(GLOB lib_srcs *.c)
     15 file(GLOB lib_hdrs *.h)
     16 
     17 if(NEON AND ARM)
     18   list(APPEND lib_srcs arm/filter_neon.S)
     19   add_definitions(-DPNG_ARM_NEON)
     20 endif()
     21 
     22 # ----------------------------------------------------------------------------------
     23 #         Define the library target:
     24 # ----------------------------------------------------------------------------------
     25 
     26 add_definitions(-DPNG_CONFIGURE_LIBPNG)
     27 
     28 if(MSVC)
     29   add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
     30 endif(MSVC)
     31 
     32 add_library(${PNG_LIBRARY} STATIC ${lib_srcs} ${lib_hdrs})
     33 target_link_libraries(${PNG_LIBRARY} ${ZLIB_LIBRARIES})
     34 
     35 if(UNIX)
     36   if(CMAKE_COMPILER_IS_GNUCXX OR CV_ICC)
     37     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
     38   endif()
     39 endif()
     40 
     41 ocv_warnings_disable(CMAKE_C_FLAGS -Wcast-align)
     42 
     43 set_target_properties(${PNG_LIBRARY}
     44   PROPERTIES OUTPUT_NAME ${PNG_LIBRARY}
     45   DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
     46   ARCHIVE_OUTPUT_DIRECTORY ${3P_LIBRARY_OUTPUT_PATH}
     47   )
     48 
     49 if(ENABLE_SOLUTION_FOLDERS)
     50   set_target_properties(${PNG_LIBRARY} PROPERTIES FOLDER "3rdparty")
     51 endif()
     52 
     53 if(NOT BUILD_SHARED_LIBS)
     54   ocv_install_target(${PNG_LIBRARY} EXPORT OpenCVModules ARCHIVE DESTINATION ${OPENCV_3P_LIB_INSTALL_PATH} COMPONENT dev)
     55 endif()
     56