[Bug libstdc++/93602] [9/10 Regression] Missing reference to libiconv in 9.x libstdc++

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93602

--- Comment #24 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 10.4 too.