17.5.1 Changed File Names
If you have an aclocal.m4 installed with Autoconf (as opposed to
in a particular package's source directory), you must rename it to
acsite.m4. See autoconf Invocation.
If you distribute install.sh with your package, rename it to
make builtin rules don't inadvertently
create a file called install from it.
looks for the script under both names, but it is best to use the new name.
If you were using config.h.top, config.h.bot, or
acconfig.h, you still can, but you have less clutter if you
AH_ macros. See Autoheader Macros.