The old code used the `[[` shell keyword, which is only available in bash.
The interpreter in line 1 is `/bin/sh` though.
This confused my shell portability check in pkgsrc, since that check neither guesses the target platform from the filename, nor assumes that `/bin/sh` is actually bash, even though this may be true on macOS.
The change makes the code shorter with the well-known `${var:-default}` pattern.
Since `$1` is now only accessed when it is defined, this allows the program to have a `set -eu` at the top.
This in turn would make all the `&&` redundant since it applies automatic error checking.
The `{ ... } 1>&2` could also be replaced with a single `exec 1>&2` at the top.
Both of these systems have /dev/ptmx for creating pseudoterminals.
OS X Leopard (10.5) added it in 2007, and Linux has had support for
it since v2.1 (1998).
This fixes a bug with pseudoterminal creation on Linux and macOS
where a new pseudoterminal cannot be created because the wrong
method is being used to find one.
With this fix I can compile with ./configure --enable-addressing=direct,0x100000
and then I don't need to change vm.mmap_min_addr and hence without root
privileges
This is no longer necessary as of glibc 2.2 (released in November 2000),
and it causes breakage when /usr/include/linux is installed using a
symlink-based system like stow.
Linking with -lvdeplug without checking whether it exists causes
failures from later configure tests; this makes it an optional
dependency in the same way as other libraries.
Note that it appears that a 'make clean' may be required due to the
change in user_strings_unix.h failing to cause all of the modules that
include it to be rebuilt.
Now that issue #154 has been fixed, when Basilisk II is configured to
use "tun" for networking, the generated tunN interface can be bridged,
enabling AppleTalk frames to be forwarded without the Linux host
needing to be able to route AppleTalk.
This commit updates the README to discuss this possibility and briefly
outline how it can be achieved. A number of spelling corrections and
other minor clarifications are made in the same area.
