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On 10/22/20 3:58 PM ken williams wrote:
It seems I can't compile it with g++ ...
I tried this:
g++ hello.cpp -o hello -I/usr/local/include -L/usr/local/lib -lfltk
-lXext -lX11 -lm
and I get this:
/usr/bin/ld: /usr/local/lib/libfltk.a(Fl_X11_Window_Driver.cxx.o):
undefined reference to symbol 'dlsym@@GLIBC_2.2.5'
/usr/bin/ld: /usr/lib/libdl.so.2: error adding symbols: DSO missing
from command line
collect2: error: ld returned 1 exit status
Could someone tell me what I should add or change?
That particular error is (AFAICT) because you missed to include '-ldl'
in your command.
A more general approach would be to use either
$ fltk-config --compile hello.cxx
and learn from the output which options you need or to use fltk-config
to provide the necessary options for you, like this:
$ fltk-config --cxxflags
$ fltk-config --ld[static]flags
See docs and/or
$ fltk-config --help
for more info.
Thank you!
Welcome.
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