How to cross-compile Win32 to OS/2?
lazarus / 11-Options

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march · 2011-01-11 07:54

I have just developed a Lazarus application in Windows XP. Now I must
make a version for OS/2 (eCS). It should be one of the easier setups
because of similarity with Windows and the same i386 processor. I have
spent the last few days searching and looking over all the FAQs,
documents and messages that I can find about cross-compiling. Many of
these seem to be out of date, or deal only with Linux as host. There
are so many conflicting details that I am confused and do not know
what should apply to Lazarus 0.9.28.2 with Win32 host. There is an
fpc\2.2.4\source\rtl\os2 directory which contains a Makefile. Should I
be using this? I tried running make.exe here, but got error messages
right away:

D:\FPC\LAZARUS\fpc\2.2.4\source\rtl\os2>d:\fpc\lazarus\fpc\2.2.4\bin\i
386-win32\make

d:/fpc/lazarus/fpc/2.2.4/bin/i386-win32/gmkdir.exe -p
../../rtl/units/i386-os2
i386-os2-as -o ../../rtl/units/i386-os2/prt0.o prt0.as
process_begin: CreateProcess((null), i386-os2-as -o
../../rtl/units/i386-os2/prt
0.o prt0.as, ...) failed.
make (e=2): The system cannot find the file specified.
d:\fpc\lazarus\fpc\2.2.4\bin\i386-win32\make: *** [prt0.o] Error 2

Does anyone know where I could find answers to:
What do I have to be concerned with - RTL, LCL, or more?
What new directories and sets of files are needed?
What are the step by step instructions to get what is needed?
I would be so grateful to get pointed in the right direction.

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marcov · 2011-01-11 14:39

Quote from: march on January 11, 2011, 08:54:17 amI have just
developed a Lazarus application in Windows XP. Now I must make a
version for OS/2 (eCS). It should be one of the easier setups because
of similarity with Windows and the same i386 processor. I have spent
the last few days searching and looking over all the FAQs, documents
and messages that I can find about cross-compiling. Many of these seem
to be out of date, or deal only with Linux as host. There are so many
conflicting details that I am confused and do not know what should
apply to Lazarus 0.9.28.2 with Win32 host. There is an
fpc\2.2.4\source\rtl\os2 directory which contains a Makefile. Should I
be using this? I tried running make.exe

No in principle you need to run "make all OS_TARGET=os2" globally, iow
in fpc/

Quotehere, but got error messages right away:

D:\FPC\LAZARUS\fpc\2.2.4\source\rtl\os2>d:\fpc\lazarus\fpc\2.2.4\bin\i
386-win32\make

d:/fpc/lazarus/fpc/2.2.4/bin/i386-win32/gmkdir.exe -p
../../rtl/units/i386-os2
i386-os2-as -o ../../rtl/units/i386-os2/prt0.o prt0.as
process_begin: CreateProcess((null), i386-os2-as -o
../../rtl/units/i386-os2/prt
0.o prt0.as, ...) failed.
make (e=2): The system cannot find the file specified.
d:\fpc\lazarus\fpc\2.2.4\bin\i386-win32\make: *** [prt0.o] Error 2


i386-os2-as are crossbinutils win32->os2.  We don't distribute
crossbinutils by default, and you will have to create these (compiling
binutils with the relevant options under mingw) yourself

QuoteDoes anyone know where I could find answers to:
What do I have to be concerned with - RTL, LCL, or more?
What new directories and sets of files are needed?
What are the step by step instructions to get what is needed?
I would be so grateful to get pointed in the right direction.


Anyway, only FPC supports OS/2, Lazarus not.

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march · 2011-01-12 06:16

Thanks marcov,
I found a binutils file called "binutils-2.6-win32-i386-os2.zip" with
  i386-os2-ar.exe
  i386-os2-as.exe
  i386-os2-as_2_6.exe
  i386-os2-emxbind.exe
  i386-os2-ld.exe
  i386-os2-objdump.exe
  i386-os2-strip.exe
It looks like an assembler, linker and a few other things, but they
are old (1998).
I wonder if they are still good for FPC 2.2.4? Anyhow, I will put them
in the win32
bin directory and try your suggestion to "make all" in fpc/.

Quote from: marcov on January 11, 2011, 03:39:38 pmAnyway, only FPC
supports OS/2, Lazarus not.
When I started this project, I saw that os2 was listed as a target OS
under
Compiler Options - Code, and got my hopes up about porting my Lazarus
application.
But now I realize that there are a lot of complications and it may not
be possible.