Fix building with autoconf 2.72. Resolves #77, where more detail is provided on what this fix does.
This also swaps out egrep for grep -E in ./configure, which shuts up a warning but doesn't actually make the fix happen.
Comparing configure.ac against the autoconf docs, I notice there's a lot of stuff in there that's "obsolescent". Should we go through and clean up there? Does it make sense to keep trying so hard to be portable that even the portability tool thinks it's too much?
Fix building with autoconf 2.72. Resolves #77, where more detail is provided on what this fix does.
This also swaps out
egrepforgrep -Ein./configure, which shuts up a warning but doesn't actually make the fix happen.Comparing
configure.acagainst the autoconf docs, I notice there's a lot of stuff in there that's "obsolescent". Should we go through and clean up there? Does it make sense to keep trying so hard to be portable that even the portability tool thinks it's too much?