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Update bundled libpng to version 1.6.37
This commit is contained in:
Admiral H. Curtiss
181
Externals/libpng/CMakeLists.txt
vendored
181
Externals/libpng/CMakeLists.txt
vendored
@ -1,6 +1,27 @@
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# selectively extracted and adapted from the libpng CMakeLists.txt, which has the following copyright notice:
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# Copyright (C) 2018 Cosmin Truta
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# Copyright (C) 2007,2009-2018 Glenn Randers-Pehrson
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# Written by Christian Ehrlicher, 2007
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# Revised by Roger Lowman, 2009-2010
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# Revised by Clifford Yapp, 2011-2012,2017
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# Revised by Roger Leigh, 2016
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# Revised by Andreas Franek, 2016
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# Revised by Sam Serrels, 2017
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# Revised by Vadim Barkov, 2017
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# Revised by Vicky Pfau, 2018
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# Revised by Cameron Cawley, 2018
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# Revised by Cosmin Truta, 2018
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# Revised by Kyle Bentley, 2018
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# This code is released under the libpng license.
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# For conditions of distribution and use, see the disclaimer
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# and license in png.h
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add_library(png STATIC
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png.h
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pngconf.h
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png.c
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pngerror.c
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pngget.c
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@ -18,16 +39,164 @@ add_library(png STATIC
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pngwutil.c
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)
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target_include_directories(png
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PUBLIC
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option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations for libpng" OFF)
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if(PNG_HARDWARE_OPTIMIZATIONS)
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message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
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# set definitions and sources for arm
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
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set(PNG_ARM_NEON_POSSIBLE_VALUES check on off)
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set(PNG_ARM_NEON "check" CACHE STRING "Enable ARM NEON optimizations:
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check: (default) use internal checking code;
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off: disable the optimizations;
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on: turn on unconditionally.")
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set_property(CACHE PNG_ARM_NEON PROPERTY STRINGS
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${PNG_ARM_NEON_POSSIBLE_VALUES})
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list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index)
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if(index EQUAL -1)
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message(FATAL_ERROR
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"PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]")
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elseif(NOT ${PNG_ARM_NEON} STREQUAL "off")
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target_sources(png PRIVATE
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arm/arm_init.c
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arm/filter_neon.S
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arm/filter_neon_intrinsics.c
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arm/palette_neon_intrinsics.c)
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if(${PNG_ARM_NEON} STREQUAL "on")
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target_compile_definitions(png PUBLIC -DPNG_ARM_NEON_OPT=2)
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elseif(${PNG_ARM_NEON} STREQUAL "check")
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target_compile_definitions(png PUBLIC -DPNG_ARM_NEON_CHECK_SUPPORTED)
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endif()
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else()
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target_compile_definitions(png PUBLIC -DPNG_ARM_NEON_OPT=0)
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endif()
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endif()
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# set definitions and sources for powerpc
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
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set(PNG_POWERPC_VSX_POSSIBLE_VALUES on off)
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set(PNG_POWERPC_VSX "on" CACHE STRING "Enable POWERPC VSX optimizations:
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off: disable the optimizations.")
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set_property(CACHE PNG_POWERPC_VSX PROPERTY STRINGS
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${PNG_POWERPC_VSX_POSSIBLE_VALUES})
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list(FIND PNG_POWERPC_VSX_POSSIBLE_VALUES ${PNG_POWERPC_VSX} index)
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if(index EQUAL -1)
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message(FATAL_ERROR
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"PNG_POWERPC_VSX must be one of [${PNG_POWERPC_VSX_POSSIBLE_VALUES}]")
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elseif(NOT ${PNG_POWERPC_VSX} STREQUAL "off")
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target_sources(png PRIVATE
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powerpc/powerpc_init.c
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powerpc/filter_vsx_intrinsics.c)
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if(${PNG_POWERPC_VSX} STREQUAL "on")
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target_compile_definitions(png PUBLIC -DPNG_POWERPC_VSX_OPT=2)
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endif()
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else()
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target_compile_definitions(png PUBLIC -DPNG_POWERPC_VSX_OPT=0)
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endif()
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endif()
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# set definitions and sources for intel
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
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set(PNG_INTEL_SSE_POSSIBLE_VALUES on off)
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set(PNG_INTEL_SSE "on" CACHE STRING "Enable INTEL_SSE optimizations:
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off: disable the optimizations")
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set_property(CACHE PNG_INTEL_SSE PROPERTY STRINGS
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${PNG_INTEL_SSE_POSSIBLE_VALUES})
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list(FIND PNG_INTEL_SSE_POSSIBLE_VALUES ${PNG_INTEL_SSE} index)
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if(index EQUAL -1)
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message(FATAL_ERROR
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"PNG_INTEL_SSE must be one of [${PNG_INTEL_SSE_POSSIBLE_VALUES}]")
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elseif(NOT ${PNG_INTEL_SSE} STREQUAL "off")
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target_sources(png PRIVATE
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intel/intel_init.c
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intel/filter_sse2_intrinsics.c)
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if(${PNG_INTEL_SSE} STREQUAL "on")
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target_compile_definitions(png PUBLIC -DPNG_INTEL_SSE_OPT=1)
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endif()
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else()
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target_compile_definitions(png PUBLIC -DPNG_INTEL_SSE_OPT=0)
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endif()
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endif()
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# set definitions and sources for MIPS
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
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set(PNG_MIPS_MSA_POSSIBLE_VALUES on off)
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set(PNG_MIPS_MSA "on" CACHE STRING "Enable MIPS_MSA optimizations:
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off: disable the optimizations")
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set_property(CACHE PNG_MIPS_MSA PROPERTY STRINGS
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${PNG_MIPS_MSA_POSSIBLE_VALUES})
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list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index)
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if(index EQUAL -1)
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message(FATAL_ERROR
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"PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
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elseif(NOT ${PNG_MIPS_MSA} STREQUAL "off")
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target_sources(png PRIVATE
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mips/mips_init.c
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mips/filter_msa_intrinsics.c)
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if(${PNG_MIPS_MSA} STREQUAL "on")
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target_compile_definitions(png PUBLIC -DPNG_MIPS_MSA_OPT=2)
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endif()
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else()
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target_compile_definitions(png PUBLIC -DPNG_MIPS_MSA_OPT=0)
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endif()
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endif()
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else(PNG_HARDWARE_OPTIMIZATIONS)
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# set definitions and sources for arm
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
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target_compile_definitions(png PUBLIC -DPNG_ARM_NEON_OPT=0)
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endif()
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# set definitions and sources for powerpc
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
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target_compile_definitions(png PUBLIC -DPNG_POWERPC_VSX_OPT=0)
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endif()
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# set definitions and sources for intel
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
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target_compile_definitions(png PUBLIC -DPNG_INTEL_SSE_OPT=0)
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endif()
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# set definitions and sources for MIPS
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
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CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
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target_compile_definitions(png PUBLIC -DPNG_MIPS_MSA_OPT=0)
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endif()
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endif(PNG_HARDWARE_OPTIMIZATIONS)
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target_sources(png PRIVATE
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# public headers
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png.h
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pngconf.h
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pnglibconf.h
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# private headers
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pngpriv.h
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pngdebug.h
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pnginfo.h
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pngstruct.h
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)
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target_include_directories(png PUBLIC
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${CMAKE_CURRENT_SOURCE_DIR}
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)
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target_link_libraries(png PUBLIC ZLIB::ZLIB)
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if(NOT MSVC)
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target_compile_options(png
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PRIVATE
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target_compile_options(png PRIVATE
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-Wno-self-assign
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)
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endif()
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