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MoAlyousef / cfltk

C Bindings for FLTK
MIT License
75 stars 18 forks source link

Shared lib #184

Open MasterVitronic opened 3 years ago

MasterVitronic commented 3 years ago

Greetings, great job. Any recommendations for building cfltk dynamically, currently build libcfltk.a, but would like a libcfltk.so instead I tried with -DOPTION_BUILD_SHARED_LIBS=ON but it only works for fltk, cfltk stays the same.

MoAlyousef commented 3 years ago

Thank you :)

Can you can try the ˋ-DCFLTK_BUILD_SHARED` flag when configuring cmake.

MasterVitronic commented 3 years ago

Any other recommendations you would like to give me, I have the following problem

cd /tmp/cfltk
root[/tmp/cfltk/bin]# cmake -B bin -S . \
-DCMAKE_BUILD_TYPE=Release \
-DOPTION_USE_SYSTEM_LIBPNG=OFF \
-DOPTION_USE_SYSTEM_LIBJPEG=OFF \
-DOPTION_USE_SYSTEM_ZLIB=OFF \
-DOPTION_USE_GL=OFF \
-DFLTK_BUILD_EXAMPLES=OFF \
-DFLTK_BUILD_TEST=OFF \
-DOPTION_USE_THREADS=ON \
-DOPTION_LARGE_FILE=ON \
-DOPTION_BUILD_HTML_DOCUMENTATION=OFF \
-DOPTION_BUILD_PDF_DOCUMENTATION=OFF \
-DCFLTK_BUILD_SHARED=ON \
-DOPTION_BUILD_SHARED_LIBS=ON
[ 49%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_table.cpp.o
[ 49%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_tree.cpp.o
[ 49%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_surface.cpp.o
[ 49%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_printer.cpp.o
[ 49%] Linking CXX shared library libcfltk.so
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: fltk/lib/libfltk.a(Fl.cxx.o): relocation R_X86_64_PC32 against symbol `_ZN2Fl6focus_E' can not be used when making a shared object; recompile with -fPIC
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/cfltk.dir/build.make:402: libcfltk.so.0.16.0] Error 1
make[2]: Leaving directory '/tmp/cfltk/bin'
make[1]: *** [CMakeFiles/Makefile2:219: CMakeFiles/cfltk.dir/all] Error 2
make[1]: Leaving directory '/tmp/cfltk/bin'
make: *** [Makefile:130: all] Error 2
MoAlyousef commented 3 years ago

I have updated the CMakeLists.txt to add

set_target_properties(cfltk PROPERTIES POSITION_INDEPENDENT_CODE ON)

when building a shared library.

Can you try again after pulling the last changes?

MasterVitronic commented 3 years ago

similar result with the last commit , could you replicate this and see if I am doing something wrong?

cmake -B bin -S . \
-DCMAKE_BUILD_TYPE=Release \
-DOPTION_USE_SYSTEM_LIBPNG=ON \
-DOPTION_USE_SYSTEM_LIBJPEG=ON \
-DOPTION_USE_SYSTEM_ZLIB=ON \
-DOPTION_USE_GL=OFF \
-DFLTK_BUILD_EXAMPLES=OFF \
-DFLTK_BUILD_TEST=OFF \
-DOPTION_USE_THREADS=ON \
-DOPTION_LARGE_FILE=ON \
-DOPTION_BUILD_HTML_DOCUMENTATION=OFF \
-DOPTION_BUILD_PDF_DOCUMENTATION=OFF \
-DCFLTK_BUILD_SHARED=ON \
-DOPTION_BUILD_SHARED_LIBS=ON
make[2]: Leaving directory '/tmp/cfltk/bin'
[ 97%] Built target fluid
[ 97%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_menu.cpp.o
[ 97%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_dialog.cpp.o
[ 97%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_valuator.cpp.o
[ 98%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_browser.cpp.o
[ 98%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_misc.cpp.o
[ 98%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_image.cpp.o
[ 98%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_draw.cpp.o
[ 99%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_table.cpp.o
[ 99%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_tree.cpp.o
[ 99%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_surface.cpp.o
[ 99%] Building CXX object CMakeFiles/cfltk.dir/src/cfl_printer.cpp.o
[100%] Linking CXX shared library libcfltk.so
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lfltk_z
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lfltk_jpeg
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lfltk_png
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/cfltk.dir/build.make:403: libcfltk.so.0.16.0] Error 1
make[2]: Leaving directory '/tmp/cfltk/bin'
make[1]: *** [CMakeFiles/Makefile2:147: CMakeFiles/cfltk.dir/all] Error 2
make[1]: Leaving directory '/tmp/cfltk/bin'
make: *** [Makefile:130: all] Error 2
root[/tmp/cfltk/bin]#
MoAlyousef commented 3 years ago

Sure will do. But it’ll be when I get back to my dev machine after the weekend.

MoAlyousef commented 3 years ago

I tried it on a VM, can you try the following invocation:

cmake -B bin -S . -DCMAKE_BUILD_TYPE=Release \
-DOPTION_USE_SYSTEM_LIBPNG=ON \
-DOPTION_USE_SYSTEM_LIBJPEG=ON \
-DOPTION_USE_SYSTEM_ZLIB=ON \
-DOPTION_USE_GL=OFF \
-DFLTK_BUILD_EXAMPLES=OFF \
-DFLTK_BUILD_TEST=OFF \
-DOPTION_USE_THREADS=ON \
-DOPTION_LARGE_FILE=ON \
-DOPTION_BUILD_HTML_DOCUMENTATION=OFF \
-DOPTION_BUILD_PDF_DOCUMENTATION=OFF \
-DCFLTK_BUILD_SHARED=ON \
-DCFLTK_LINK_IMAGES=OFF \
-DCMAKE_POSITION_INDEPENDENT_CODE=ON

Notice the last 3 cmake flags, also the removal of -DOPTION_BUILD_SHARED_LIBS=ON This builds libfltk as static but libcfltk as dynamic with all the symbols of libfltk, so libfltk is no longer needed.

MasterVitronic commented 3 years ago

I compile without problem, but I don't link correctly, I haven't tested it yet, but this is what ldd shows me

vitronic [/tmp/CFLTK/bin]$ ls *.so*
libcfltk.so  libcfltk.so.0.16.0
vitronic [/tmp/CFLTK/bin]$ ldd libcfltk.so.0.16.0
    /lib/ld-musl-x86_64.so.1 (0x7febe8489000)
    libX11.so.6 => /usr/lib/libX11.so.6 (0x7febe80ec000)
    libXext.so.6 => /usr/lib/libXext.so.6 (0x7febe80d9000)
    libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0x7febe80d4000)
    libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x7febe80cc000)
    libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x7febe80c0000)
    libXrender.so.1 => /usr/lib/libXrender.so.1 (0x7febe80b4000)
    libXft.so.2 => /usr/lib/libXft.so.2 (0x7febe809f000)
    libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x7febe8062000)
    libc.musl-x86_64.so.1 => /lib/ld-musl-x86_64.so.1 (0x7febe8489000)
    libxcb.so.1 => /usr/lib/libxcb.so.1 (0x7febe803b000)
    libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x7febe7f89000)
    libexpat.so.1 => /usr/lib/libexpat.so.1 (0x7febe7f66000)
    libuuid.so.1 => /lib/libuuid.so.1 (0x7febe7f5d000)
    libXau.so.6 => /usr/lib/libXau.so.6 (0x7febe7f58000)
    libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x7febe7f50000)
    libbz2.so.1 => /usr/lib/libbz2.so.1 (0x7febe7f41000)
    libpng16.so.16 => /usr/lib/libpng16.so.16 (0x7febe7f11000)
    libz.so.1 => /lib/libz.so.1 (0x7febe7ef7000)
    libbsd.so.0 => /usr/lib/libbsd.so.0 (0x7febe7ee1000)
Error relocating libcfltk.so.0.16.0: _ZN12Fl_BMP_ImageC1EPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog8textsizeEi: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog4showEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog4loadEPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog8textsizeEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_PNG_ImageC1EPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_DialogD1Ev: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_PNG_ImageC1EPKcPKhi: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN19Fl_SVG_File_Surface4fileEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog7visibleEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN13Fl_JPEG_ImageC1EPKcPKh: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_SVG_ImageC1EPKcS1_: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog6resizeEiiii: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog4hideEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_GIF_ImageC1EPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog1xEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN19Fl_SVG_File_SurfaceC1EiiP8_IO_FILEPFiS1_E: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog8positionEii: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_BMP_ImageC1EPKcPKh: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_PNM_ImageC1EPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN13Fl_JPEG_ImageC1EPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN12Fl_GIF_ImageC1EPKcPKh: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog5valueEPKc: symbol not found
Error relocating libcfltk.so.0.16.0: _Z18fl_register_imagesv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog1hEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog1wEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_DialogC1Ev: symbol not found
Error relocating libcfltk.so.0.16.0: _ZNK14Fl_Help_Dialog5valueEv: symbol not found
Error relocating libcfltk.so.0.16.0: _ZN14Fl_Help_Dialog1yEv: symbol not found

Needless to say I am very grateful for your attention, I will keep trying and I will keep you informed.

MoAlyousef commented 3 years ago

Hmm It seems shared libcfltk won't work with system image libs. I'll need to investigate further.

cmake -B bin -S . -DCMAKE_BUILD_TYPE=Release -DOPTION_USE_SYSTEM_LIBPNG=OFF -DOPTION_USE_SYSTEM_LIBJPEG=OFF -DOPTION_USE_SYSTEM_ZLIB=OFF -DOPTION_USE_GL=OFF -DFLTK_BUILD_EXAMPLES=OFF -DFLTK_BUILD_TEST=OFF -DOPTION_USE_THREADS=ON -DOPTION_LARGE_FILE=ON -DOPTION_BUILD_HTML_DOCUMENTATION=OFF -DOPTION_BUILD_PDF_DOCUMENTATION=OFF -DCFLTK_BUILD_SHARED=ON -DCFLTK_LINK_IMAGES=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON
AlexanderZhirov commented 2 years ago

When building a dynamic library, I get the error of not having a PNG library:

Build log $ cmake -B . -S ../cfltk/ \ -DCMAKE_BUILD_TYPE=Release \ -DOPTION_USE_SYSTEM_LIBJPEG=OFF \ -DOPTION_USE_SYSTEM_ZLIB=OFF \ -DOPTION_USE_GL=OFF \ -DFLTK_BUILD_EXAMPLES=OFF \ -DFLTK_BUILD_TEST=OFF \ -DOPTION_USE_THREADS=ON \ -DOPTION_LARGE_FILE=ON \ -DOPTION_BUILD_HTML_DOCUMENTATION=OFF \ -DOPTION_BUILD_PDF_DOCUMENTATION=OFF \ -DCFLTK_BUILD_SHARED=ON -- The C compiler identification is GNU 12.1.1 -- The CXX compiler identification is GNU 12.1.1 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/cc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Looking for sys/types.h -- Looking for sys/types.h - found -- Looking for stdint.h -- Looking for stdint.h - found -- Looking for stddef.h -- Looking for stddef.h - found -- Check size of short -- Check size of short - done -- Check size of int -- Check size of int - done -- Check size of long -- Check size of long - done -- Check size of long long -- Check size of long long - done -- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.2") -- Looking for POSIX compatible scandir -- POSIX compatible scandir - found -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) -- Found ZLIB: /usr/lib/libz.so (found version "1.2.11") -- Found PNG: /usr/lib/libpng.so (found version "1.6.37") -- Looking for png.h -- Looking for png.h - found -- Found X11: /usr/local/include -- Looking for XOpenDisplay in /usr/lib/libX11.so;/usr/lib/libXext.so -- Looking for XOpenDisplay in /usr/lib/libX11.so;/usr/lib/libXext.so - found -- Looking for gethostbyname -- Looking for gethostbyname - found -- Looking for connect -- Looking for connect - found -- Looking for remove -- Looking for remove - found -- Looking for shmat -- Looking for shmat - found -- Looking for pthread.h -- Looking for pthread.h - found -- Performing Test CMAKE_HAVE_LIBC_PTHREAD -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success -- Found Threads: TRUE -- Configuration Summary for FLTK 1.4.0 generated by CMake 3.23.1 -- -- The following OPTIONAL packages have been found: * ZLIB * PNG -- The following OPTIONAL packages have not been found: * Doxygen -- Static libraries will be built in /home/alexander/programming/c/build_cfltk/fltk/lib -- Shared libraries will not be built (set OPTION_BUILD_SHARED_LIBS=ON to build) -- Example programs will not be built (set FLTK_BUILD_EXAMPLES=ON to build) -- Image Libraries: JPEG = Builtin -- PNG = System -- ZLIB = Builtin -- Use Wayland: No -- Use Pango: No -- Use Xft: Yes -- Cairo support: No -- End of Configuration Summary -- -- Configuring done -- Generating done -- Build files have been written to: /home/alexander/programming/c/build_cfltk ~/programming/c/build_cfltk  $ cmake --build . -- -j4 [ 0%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/adler32.c.o [ 1%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jmemnobs.c.o [ 2%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/compress.c.o [ 3%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl.cxx.o [ 3%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jaricom.c.o [ 3%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcomapi.c.o [ 4%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jutils.c.o [ 4%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jerror.c.o [ 4%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/crc32.c.o [ 4%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jmemmgr.c.o [ 4%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcapimin.c.o [ 5%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/deflate.c.o [ 5%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcapistd.c.o [ 6%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/gzclose.c.o [ 6%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcarith.c.o [ 6%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Adjuster.cxx.o [ 6%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/gzlib.c.o [ 6%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Bitmap.cxx.o [ 6%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jctrans.c.o [ 7%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcparam.c.o [ 8%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Browser.cxx.o [ 8%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jdatadst.c.o [ 8%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcinit.c.o [ 9%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcmaster.c.o [ 9%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcmarker.c.o [ 9%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/gzread.c.o [ 10%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/gzwrite.c.o [ 10%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/inflate.c.o [ 10%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/infback.c.o [ 10%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcmainct.c.o [ 11%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcprepct.c.o [ 11%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Browser_.cxx.o [ 11%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jccoefct.c.o [ 12%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/inftrees.c.o [ 12%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jccolor.c.o [ 12%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/inffast.c.o [ 13%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcsample.c.o [ 13%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/trees.c.o [ 14%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/uncompr.c.o [ 14%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Browser_load.cxx.o [ 14%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jchuff.c.o [ 15%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Box.cxx.o [ 15%] Building C object fltk/zlib/CMakeFiles/fltk_z.dir/zutil.c.o [ 15%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Button.cxx.o [ 15%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Chart.cxx.o [ 15%] Linking C static library ../lib/libfltk_z.a [ 16%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Check_Browser.cxx.o [ 16%] Built target fltk_z [ 16%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Check_Button.cxx.o [ 16%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Choice.cxx.o [ 17%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Clock.cxx.o [ 17%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Color_Chooser.cxx.o [ 17%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Copy_Surface.cxx.o [ 17%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jcdctmgr.c.o [ 18%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Counter.cxx.o [ 19%] Building C object fltk/jpeg/CMakeFiles/fltk_jpeg.dir/jfdctfst.c.o [ 19%] Building C object 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fltk/src/CMakeFiles/fltk.dir/Fl_Text_Display.cxx.o [ 43%] Building CXX object fltk/src/CMakeFiles/fltk.dir/Fl_Text_Editor.cxx.o /home/alexander/programming/c/cfltk/fltk/src/Fl_Text_Display.cxx: В конструкторе «Fl_Text_Display::Fl_Text_Display(int, int, int, int, const char*)»: /home/alexander/programming/c/cfltk/fltk/src/Fl_Text_Display.cxx:122:57: предупреждение: «void* __builtin_memset(void*, int, long unsigned int)» writing between 4 and 8589934584 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=] 122 | for (int i=1; i
AlexanderZhirov commented 2 years ago

When building a dynamic library, I get the error of not having a PNG library:

I'm sorry, my inattention:

 -- Shared libraries will not be built (set OPTION_BUILD_SHARED_LIBS=ON to build)
MoAlyousef commented 2 years ago

If you don't need fltk image support, make sure you have libpng-dev is installed. Make sure you also use a recent version of cfltk and fltk, since there was an issue reported in FLTK regarding png linking. Also try with this:

cmake -B bin -S . -DCMAKE_BUILD_TYPE=Release -DOPTION_USE_SYSTEM_LIBPNG=ON -DOPTION_USE_SYSTEM_LIBJPEG=ON -DOPTION_USE_SYSTEM_ZLIB=ON -DOPTION_USE_GL=OFF -DFLTK_BUILD_EXAMPLES=OFF -DFLTK_BUILD_TEST=OFF -DOPTION_USE_THREADS=ON -DOPTION_LARGE_FILE=ON -DOPTION_BUILD_HTML_DOCUMENTATION=OFF -DOPTION_BUILD_PDF_DOCUMENTATION=OFF -DCFLTK_BUILD_SHARED=ON -DCFLTK_LINK_IMAGES=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON

To get built-in image support:

cmake -B bin -S . -DCMAKE_BUILD_TYPE=Release -DOPTION_USE_SYSTEM_LIBPNG=OFF -DOPTION_USE_SYSTEM_LIBJPEG=OFF -DOPTION_USE_SYSTEM_ZLIB=OFF -DOPTION_USE_GL=OFF -DFLTK_BUILD_EXAMPLES=OFF -DFLTK_BUILD_TEST=OFF -DOPTION_USE_THREADS=ON -DOPTION_LARGE_FILE=ON -DOPTION_BUILD_HTML_DOCUMENTATION=OFF -DOPTION_BUILD_PDF_DOCUMENTATION=OFF -DCFLTK_BUILD_SHARED=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON