aclocal-1.15: error: too many loops
aclocal-1.15: Please contact <bug-automake@gnu.org>.
at /usr/share/automake-1.15/Automake/Channels.pm line 662.
Automake::Channels::msg("automake", "", "too many loops") called
at /usr/share/automake-1.15/Automake/ChannelDefs.pm line 212
Automake::ChannelDefs::prog_error("too many loops") called at
/usr/bin/aclocal-1.15 line 1188
Platform is an msys2 64-bit shell on Windows 7. I've built this same
program (one I'm writing) many times without this problem coming up before.
