Building for DOS
The DOS target is still a supported FreeBASIC target, but it is not shaped like
a modern hosted operating system. It normally uses a DJGPP-style toolchain and
has platform limits that the compiler and runtime must respect.
Current build path
Use the DOS build scripts when they are available in the checkout. They encode
the current toolchain layout and package expectations better than the old manual
DJGPP notes did.
For direct make work, prefer a target triplet rather than old short target
names:
Known DOS limits
Most normal compiler and runtime work is usable on DOS, but DOS-specific limits
remain important. The DOS runtime does not provide thread support, TCP support
is not available there, and audio playback is blocking compared with the more
modern hosted ports.
The DOS target is still a supported FreeBASIC target, but it is not shaped like
a modern hosted operating system. It normally uses a DJGPP-style toolchain and
has platform limits that the compiler and runtime must respect.
Current build path
Use the DOS build scripts when they are available in the checkout. They encode
the current toolchain layout and package expectations better than the old manual
DJGPP notes did.
(sh) ./build_scripts/msdos-build-freebasic.sh ./build_scripts/msdos-test-freebasic.sh
For direct make work, prefer a target triplet rather than old short target
names:
(sh) make print-config TARGET_TRIPLET=i586-pc-msdosdjgpp make TARGET_TRIPLET=i586-pc-msdosdjgpp
Known DOS limits
Most normal compiler and runtime work is usable on DOS, but DOS-specific limits
remain important. The DOS runtime does not provide thread support, TCP support
is not available there, and audio playback is blocking compared with the more
modern hosted ports.