Makefile.dos

# Makefile for building GW-BASIC 2026 with OpenWatcom for DOS
#
# Usage:
#   wmake -f Makefile.dos           (from OpenWatcom environment)
#   wmake -f Makefile.dos clean
#
# Requires: OpenWatcom 2.0+ with DOS/4GW 32-bit target
# Produces: GWBASIC.EXE (interpreter), GWBASCOM.EXE (compiler), GWRT.LIB (runtime)

CC = wcc386
CFLAGS = -bt=dos -mf -ox -w4 -zq -za99 -Iinclude -D__MSDOS__
LINKER = wlink
LIBRARIAN = wlib

# Interpreter sources (excludes compiler_main, analysis, codegen, gwrt)
INTERP_OBJS = &
    src/main.obj src/tokens.obj src/tokenizer.obj src/error.obj &
    src/eval.obj src/interp.obj src/vars.obj src/arrays.obj &
    src/input.obj src/math_int.obj src/math_float.obj &
    src/math_transcend.obj src/strings.obj src/print.obj &
    src/fileio.obj src/program_io.obj src/print_using.obj &
    src/graphics.obj src/virmem.obj src/portio.obj src/strpool.obj &
    src/sound.obj src/tui.obj platform/hal_dos.obj

# Runtime library (for compiled programs)
GWRT_OBJS = &
    src/tokens.obj src/tokenizer.obj src/error.obj &
    src/eval.obj src/interp.obj src/vars.obj src/arrays.obj &
    src/input.obj src/math_int.obj src/math_float.obj &
    src/math_transcend.obj src/strings.obj src/print.obj &
    src/fileio.obj src/program_io.obj src/print_using.obj &
    src/graphics.obj src/virmem.obj src/portio.obj src/strpool.obj &
    src/sound.obj src/tui.obj src/gwrt.obj platform/hal_dos.obj

# Compiler sources
COMP_OBJS = &
    src/compiler_main.obj src/analysis.obj src/codegen.obj &
    src/tokens.obj src/tokenizer.obj

.c.obj:
    $(CC) $(CFLAGS) -fo=$@ $<

all: gwbasic.exe gwbascom.exe gwrt.lib

gwbasic.exe: $(INTERP_OBJS)
    $(LINKER) system dos4g name $@ file { $< }

gwrt.lib: $(GWRT_OBJS)
    $(LIBRARIAN) -q -n $@ $(GWRT_OBJS)

gwbascom.exe: $(COMP_OBJS)
    $(LINKER) system dos4g name $@ file { $< }

clean: .SYMBOLIC
    del src\*.obj
    del platform\*.obj
    del gwbasic.exe
    del gwbascom.exe
    del gwrt.lib