104 lines
3.0 KiB
CMake
104 lines
3.0 KiB
CMake
#
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# PNG library CMake configuration for the Fast Light Toolkit (FLTK).
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#
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# Copyright 1998-2023 by Bill Spitzak and others.
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#
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# This library is free software. Distribution and use rights are outlined in
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# the file "COPYING" which should have been included with this file. If this
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# file is missing or damaged, see the license at:
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#
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# https://www.fltk.org/COPYING.php
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#
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# Please see the following page on how to report bugs and issues:
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#
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# https://www.fltk.org/bugs.php
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#
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# source files for png
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set (PNG_SRCS
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png.c
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pngerror.c
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pngget.c
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pngmem.c
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pngpread.c
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pngread.c
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pngrio.c
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pngrtran.c
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pngrutil.c
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pngset.c
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pngtrans.c
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pngwio.c
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pngwrite.c
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pngwtran.c
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pngwutil.c
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)
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#######################################################################
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# Note: This file is used only if we build the bundled PNG library,
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# and if we do this we MUST also build and use the *bundled* ZLIB,
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# hence we MUST also link against the bundled ZLIB (see below).
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# There's no need to check which ZLIB version to use in this context.
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#######################################################################
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#######################################################################
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# Build some files on ARM (e.g. Apple M1 systems)
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#######################################################################
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# We can only determine the target architecture if it is set
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# in CMAKE_OSX_ARCHITECTURES, otherwise we *assume* it is true and
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# compile these files even if this results in some warnings.
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# This includes all non-macOS platforms.
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if (CMAKE_OSX_ARCHITECTURES)
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string (REGEX MATCH "arm64" is_arm "${CMAKE_OSX_ARCHITECTURES}")
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else ()
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set (is_arm TRUE)
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endif ()
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if (is_arm)
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LIST (APPEND PNG_SRCS
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arm/arm_init.c
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arm/filter_neon_intrinsics.c
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arm/palette_neon_intrinsics.c
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)
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endif ()
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unset (is_arm)
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#######################################################################
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# Build some files on ppc64
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# We compile these files whatever the architecture resulting in void code
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# on non-ppc64 architectures.
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#######################################################################
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LIST (APPEND PNG_SRCS
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powerpc/powerpc_init.c
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powerpc/filter_vsx_intrinsics.c
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)
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#######################################################################
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# Build the static library
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#######################################################################
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FL_ADD_LIBRARY (fltk_png STATIC "${PNG_SRCS}")
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target_link_libraries (fltk_png PUBLIC fltk_z)
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#######################################################################
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# Build the shared library (optional)
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#######################################################################
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if (OPTION_BUILD_SHARED_LIBS)
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FL_ADD_LIBRARY (fltk_png SHARED "${PNG_SRCS}")
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target_link_libraries (fltk_png_SHARED PUBLIC fltk_z_SHARED)
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endif ()
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#######################################################################
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# Install the library headers
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#######################################################################
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install (FILES png.h pngconf.h pnglibconf.h pngprefix.h
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DESTINATION ${FLTK_INCLUDEDIR}/FL/images
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)
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