Talk:fpcup

Add section when dos cross comp works:

DOS crosscompiler

Using 32 bit fpcup.exe on Windows, once you have set up a regular FPC trunk/2.7.1 compiler, you can add a DOS cross compiler. Note: the DOS cross compiler is still in development.

Open your settings file or add a new file, settings.ini:

[dos]
; dos cross compiler
; a full fpcup run must have been done before
; please adjust paths etc
fpcdir=c:\development\fpctrunk
fpcurl=http://svn.freepascal.org/svn/fpc/trunk
fpcopt=""
fpcuplinkname=""
lazlinkname=""
binutilsdir=c:\development\fpcbootstrap
fpcbootstrapdir=c:\development\fpcbootstrap
cputarget=i8086
ostarget=msdos
verbose=0
; We only need an FPC here; assume FPC has been updated by regular update
only=FPCBuildOnly

Then generate the cross compiler with

fpcup --inifile=settings.ini --inisection=dos

Now you can run a test compile, compiling a file test.pas with

fpc -Pi8086 -TMSDOS test.pas

(your fpc.cfg will have been modified to use DOS medium memory model, smartlinking etc)