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update Cross-compiling for Amiga steps

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nhmall
2026-03-24 11:46:07 -04:00
parent d78af5cec7
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106
Cross-compiling
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@@ -528,11 +528,11 @@ Cross-compiler pre-built binary downloads:
Disclaimer: This is a minimal recipe, just to help someone else get
started if they have a desire to get a full cross-compile of
NetHack going for the Amiga.
See CAVEATS below.
Cross-compiler used: bebbo's amiga-gcc
Cross-compiler url: https://github.com/bebbo/amiga-gcc
Cross-compiler url: https://github.com/AmigaPorts/m68k-amigaos-gcc
Author of 3.7 support: Ingo Paschke
To our knowledge, a pre-built copy of the cross-compiler isn't available,
so you will likely have to obtain the cross-compiler sources via git and
build it on your system.
@@ -542,86 +542,84 @@ Cross-compiler url: https://github.com/bebbo/amiga-gcc
sudo apt install make wget git gcc g++ lhasa libgmp-dev \
libmpfr-dev libmpc-dev flex bison gettext texinfo ncurses-dev \
autoconf rsync
autoconf rsync libreadline-dev
The build prerequisite packages for macOS via homebrew are documented but
not tested by us any of us to date.
brew install bash wget make lhasa gmp mpfr libmpc flex gettext \
texinfo gcc make autoconf
gnu-sed texinfo gcc@12 make autoconf bison
After installing the prerequisite packages and the cross-compiler
it was a straightforward build:
the build is straightforward:
git clone https://github.com/bebbo/amiga-gcc.git
Create the /opt/amiga directory for holding the compiler and tools.
sudo mkdir /opt/amiga
sudo chgrp users /opt/amiga
sudo chmod 775 /opt/amiga
sudo usermod -a -G users username
(you may have to log off and back on)
Build the cross-compiler.
git clone https://github.com/AmigaPorts/m68k-amigaos-gcc.git amiga-gcc
cd amiga-gcc
make update
[Note that you may have to take ownership of the files in the bebbo
repo via chown before successfully carrying out the next steps]
The compiler pieces are installed in /opt/amiga by default, and the
NetHack Makefiles expect them there.
make clean
make clean-prefix
date; make all -j3 >&b.log; date
If you prefer, you can alter the prefix before you build if you want.
The instructions for doing so were spelled out at the time of this writing at:
The compiler pieces are installed in /opt/amiga by default. If you prefer,
you can alter the prefix before you build if you want. The instructions
for doing so were spelled out at the time of this writing at:
https://github.com/AmigaPorts/m68k-amigaos-gcc
Makefile adjustments will be needed, however.
https://github.com/bebbo/amiga-gcc
On your linux host:
On your linux host:
cd sys/unix ; sh setup.sh hints/linux.370 ; cd ../..
# Clone NetHack 3.7 source
cd NetHack
sys/unix/setup.sh sys/unix/hints/linux.370
make fetch-lua
On your macOS host:
cd sys/unix ; sh setup.sh hints/macOS.370 ; cd ../..
make fetch-lua
The Amiga cross-compile can then be carried out by specifying
CROSS_TO_AMIGA=1 on the make command line:
make CROSS_TO_AMIGA=1 fetch-regex
make CROSS_TO_AMIGA=1 all
make CROSS_TO_AMIGA=1 package
You can explicitly include tty and curses support if desired, otherwise
you'll end up with a tty-only cross-compile build. The SDL1 pdcurses
support has not been tested.
The distribution ZIP is created at targets/amiga/NH370AMI.ZIP.
make WANT_WIN_TTY=1 WANT_WIN_CURSES=1 CROSS_TO_AMIGA=1 all
On your macOS host, the Amiga cross-compile can be carried out by specifying
CROSS_TO_AMIGA=1 on the make command line:
# Clone NetHack 3.7 source
cd NetHack
sys/unix/setup.sh sys/unix/hints/macOS.370
make fetch-lua
make CROSS_TO_AMIGA=1 fetch-regex
make CROSS_TO_AMIGA=1 all
make CROSS_TO_AMIGA=1 package
Result: The "make package" target will bundle the (hopefully) necessary
components to run NetHack on msdos into a folder:
components to run NetHack on an Amiga into a folder:
targets/amiga/pkg
and then it zips the contents of that folder into:
targets/amiga/nh370ami.zip
targets/amiga/NH370AMI.ZIP
Also note that building the amiga targets using the make command
above, does not preclude you from building local linux or macOS
targets as well. Just drop the CROSS_TO_AMIGA=1 from the make
command line.
Display Modes
-------------
Two display modes are available, selected in nethack.cnf:
The cross-compiler hints additions are enclosed inside ifdef sections
and won't interfere with the non-cross-compile build in that case.
Text mode (AMII):
OPTIONS=symset:AmigaFont
CAVEATS: The original NetHack Amiga build steps included the source for
some utilities that were built and executed on the amiga:
txt2iff and xpm2iff
as part of the NetHack build procedure on amiga.
Those did not compile out-of-the-box on the linux host. They
will either have to be:
- ported to build and run on the linux or macOS cross-compile
host
or
Tile mode (AMIV):
OPTIONS=windowtype:amiv
- their functionality will have to be rolled into amiga NetHack
itself and executed on the target Amiga the first time the game
is run, perhaps.
Tile mode auto-selects tiles32.iff (32 colors, 5 bitplanes) when the
screen supports 32+ colors, otherwise tiles16.iff (16 colors, 4 planes).
For further details about playing the game, and setting up your NetHack
configuration, please see the following file:
sys/amiga/README.amiga
If you make headway, or are successful getting a working copy of
NetHack going on the amiga, drop us a note at devteam@nethack.org.
+--------------------------------+
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