99 lines
2.9 KiB
Bash
99 lines
2.9 KiB
Bash
|
#!/bin/bash
|
||
|
|
# build_dos.sh -- Cross-compile GW-BASIC 2026 to DOS using OpenWatcom V2.
|
||
|
|
#
|
||
|
|
# Usage:
|
||
|
|
# ./build_dos.sh # 16-bit real-mode, produces gwbasic16.exe
|
||
|
|
# ./build_dos.sh 32 # 32-bit DOS/4GW, produces gwbasic.exe
|
||
|
|
# ./build_dos.sh clean # remove .obj files and DOS executables
|
||
|
|
#
|
||
|
|
# OpenWatcom's wmake on Linux struggles with the .c.obj implicit rule for
|
||
|
|
# subdirectory paths, so this script invokes wcc/wcc386 directly. On a
|
||
|
|
# Windows or DOS host, use Makefile.dos / Makefile.dos16 with wmake instead.
|
||
|
|
#
|
||
|
|
# Requires: OpenWatcom V2 with $WATCOM and binl64 (or binl) on PATH.
|
||
|
|
# Source ~/openwatcom-v2/setvars.sh first if not already.
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
if [ -z "$WATCOM" ]; then
|
||
|
|
if [ -f "$HOME/openwatcom-v2/setvars.sh" ]; then
|
||
|
|
. "$HOME/openwatcom-v2/setvars.sh"
|
||
|
|
else
|
||
|
|
echo "Error: WATCOM not set and ~/openwatcom-v2/setvars.sh not found." >&2
|
||
|
|
echo "Install OpenWatcom V2 and set WATCOM to its root." >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
INTERP_C=(
|
||
|
|
src/main.c src/tokens.c src/tokenizer.c src/error.c
|
||
|
|
src/eval.c src/interp.c src/vars.c src/arrays.c
|
||
|
|
src/input.c src/math_int.c src/math_float.c
|
||
|
|
src/math_transcend.c src/strings.c src/print.c
|
||
|
|
src/fileio.c src/program_io.c src/print_using.c
|
||
|
|
src/graphics.c src/virmem.c src/portio.c src/strpool.c
|
||
|
|
src/sound.c src/tui.c platform/hal_dos.c
|
||
|
|
)
|
||
|
|
|
||
|
|
case "${1:-16}" in
|
||
|
|
clean)
|
||
|
|
rm -f src/*.obj platform/*.obj gwbasic.exe gwbasic16.exe gwbascom.exe gwrt.lib .dos_build_mode
|
||
|
|
echo "cleaned"
|
||
|
|
exit 0
|
||
|
|
;;
|
||
|
|
16)
|
||
|
|
CC=wcc
|
||
|
|
CFLAGS="-bt=dos -mm -ox -w4 -zq -za99 -Iinclude -D__MSDOS__"
|
||
|
|
EXE=gwbasic16.exe
|
||
|
|
LINK_SYSTEM="dos option stack=8192"
|
||
|
|
;;
|
||
|
|
32)
|
||
|
|
CC=wcc386
|
||
|
|
CFLAGS="-bt=dos -mf -ox -w4 -zq -za99 -Iinclude -D__MSDOS__"
|
||
|
|
EXE=gwbasic.exe
|
||
|
|
LINK_SYSTEM="dos4g"
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
echo "Usage: $0 [16|32|clean]" >&2
|
||
|
|
exit 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
# Track which mode the .obj files were built for; clean if it differs. 16-bit
|
||
|
|
# .obj from wcc and 32-bit .obj from wcc386 share names but cannot mix in one
|
||
|
|
# link.
|
||
|
|
MODE_STAMP=.dos_build_mode
|
||
|
|
PREV_MODE=""
|
||
|
|
[ -f "$MODE_STAMP" ] && PREV_MODE=$(cat "$MODE_STAMP")
|
||
|
|
if [ -n "$PREV_MODE" ] && [ "$PREV_MODE" != "$1" ] && [ "$PREV_MODE" != "${1:-16}" ]; then
|
||
|
|
echo " -- previous build was $PREV_MODE, cleaning"
|
||
|
|
rm -f src/*.obj platform/*.obj
|
||
|
|
fi
|
||
|
|
echo "${1:-16}" > "$MODE_STAMP"
|
||
|
|
|
||
|
|
OBJS=()
|
||
|
|
for c in "${INTERP_C[@]}"; do
|
||
|
|
obj="${c%.c}.obj"
|
||
|
|
OBJS+=("$obj")
|
||
|
|
if [ "$c" -nt "$obj" ] || [ ! -f "$obj" ]; then
|
||
|
|
printf " CC %s\n" "$c"
|
||
|
|
$CC $CFLAGS -fo="$obj" "$c"
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
printf " LD %s\n" "$EXE"
|
||
|
|
LINK_DIR=$(dirname "$0")/.link_dir
|
||
|
|
mkdir -p "$LINK_DIR"
|
||
|
|
LINK_SCRIPT="$LINK_DIR/link.lnk"
|
||
|
|
{
|
||
|
|
echo "system $LINK_SYSTEM"
|
||
|
|
echo "name $EXE"
|
||
|
|
for o in "${OBJS[@]}"; do
|
||
|
|
echo "file $o"
|
||
|
|
done
|
||
|
|
} > "$LINK_SCRIPT"
|
||
|
|
wlink @"$LINK_SCRIPT"
|
||
|
|
rm -rf "$LINK_DIR"
|
||
|
|
|
||
|
|
ls -la "$EXE"
|