[Bug other/88141] Issues with texinfo when building GCC r266351 in MSYS2

[jmm4077 at rit dot edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88141

--- Comment #4 from Joshua Morrison <jmm4077 at rit dot edu> ---
The issue's also occurring for me with the latest revision of the GCC 8 branch.
Is there a step that I'm missing during the build?