Thank yu for your response. It must be tat I misinterpretted the error
message
/usr/bin/c++ -ffast-math -mfpmath=sse -msse2 -fomit-frame-pointer
-fvisibility=hidden -fvisibility=hidden -DHAVE_ATOMIC_BUILTIN -g
CMakeFiles/winsound.dir/winsound.cxx.o
CMakeFiles/winsound.dir/winsound/main.cxx.o -o ../winsound -rdynamic
/usr/lib/x86_64-linux-gnu/libfltk_images.a
/usr/lib/x86_64-linux-gnu/libfltk_forms.a
/usr/lib/x86_64-linux-gnu/libfltk.a -lSM -lICE -lX11 -lXext -lm
../libcsound64.so.6.0 -lpthread -lpng -lz -ljpeg -lXft -lfontconfig
-lXinerama -lX11 -lm -Wl,-rpath,/home/jpff/csound6:
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libfltk.a(Fl_x.o): undefined
reference to symbol 'dlsym@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from
command line
collect2: error: ld returned 1 exit status
frontends/CMakeFiles/winsound.dir/build.make:122: recipe for target
'winsound' failed
make[2]: *** [winsound] Error 1
The assummptiowas as thisused to work I must have udated something new in
the C world. Time to look elsewhere
==John ff
