[Bug gcov-profile/61889] [5 Regression] gcov-tool.c uses nftw, ftw.h

[rainer@emrich-ebersheim.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61889

--- Comment #9 from Rainer Emrich <rainer@emrich-ebersheim.de> ---
Created attachment 33548
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33548&action=edit
Proposed patch to fix the mingw case.