gcc can't link libc++_shared.so

[bobpaul]

~ $ gcc-8
CANNOT LINK EXECUTABLE "gcc-8": library "libc++_shared.so" not found: needed by main executable

~ $ dpkg -S libc\+
libc++: /data/data/com.termux/files/usr/lib/libc++_shared.so
libc++: /data/data/com.termux/files/usr/share/doc/libc++
libc++: /data/data/com.termux/files/usr/share/doc/libc++/copyright

~ $ ls -lah /data/data/com.termux/files/usr/lib/libc++_shared.so
-rwx------. 1 u0_a871 u0_a871 1.3M Sep 10 00:54 /data/data/com.termux/files/usr/lib/libc++_shared.so

~ $

I ran setup-pointless-repo.sh and installed gcc 8. apt search gcc doesn't show anything newer. I tried gcc-6 and gcc-7 as well, but the same results.