gcc 8 related (Re: (gnuradio-core) libstdc++.so.9 conflicts with libstdc++.so.7

[Makoto Fujiwara <makoto%ki.nu@localhost>]

| (I don't see the origin of  libstdc++.so.7)

(log of make package on 9.0_STABLE)
-----------------------------------

[ 54%] Building CXX object gr-blocks/lib/CMakeFiles/gnuradio-blocks.dir/wavfile_source_impl.cc.o
[ 54%] Linking CXX shared library libgnuradio-blocks.so
/usr/bin/ld: warning: libstdc++.so.9, needed by /tmp/ham/gnuradio-core/work/.buildlink/lib/libboost_program_options.so, may conflict with libstdc++.so.7
[ 54%] Built target gnuradio-blocks
gmake: *** [Makefile:146: all] Error 2
*** Error code 2

Stop.
make[1]: stopped in /export/CHROOT/usr/pkgsrc/ham/gnuradio-core
*** Error code 1

Stop.
make: stopped in /export/CHROOT/usr/pkgsrc/ham/gnuradio-core


Looking for libstdc++.so.7
-----------------------------------
cluster032@makoto 22:06:01/221121(..ham/gnuradio-core)% find /tmp/ham/gnuradio-core -name libstdc++.so.7 -ls
85401334687663764      8 lrwxr-xr-x    1 makoto            wheel                    32 Nov 21 21:46 /tmp/ham/gnuradio-core/work/.buildlink/gcc8/lib/libstdc++.so.7 -> /usr/pkg/gcc8/lib/libstdc++.so.7
85401334689733662      8 lrwxr-xr-x    1 makoto            wheel                    47 Nov 21 21:46 /tmp/ham/gnuradio-core/work/.buildlink/gcc8/x86_64--netbsd/lib/libstdc++.so.7 -> /usr/pkg/gcc8/x86_64--netbsd/lib/libstdc++.so.7

-- 
Makoto Fujiwara
mef%NetBSD.org@localhost
makoto%if.t.u-tokyo.ac.jp@localhost
Key fingerprint = 0BFA FAEB EAD1 90BA 7498  8F85 6809 9E0B B7EF A12E
----
pkgsrc freshness:
http://www.ki.nu/~makoto/pkgsrc/check-update/00_Summary.html
http://www.ki.nu/~makoto/pkgsrc/check-update/HEAD/00_Summary.html