Re: [Nasm-users] nasm: unrecognised output format "macho" - need help

[Frank K. <fbk...@ve...>]

Hi Frank!

> I installed nasm 0.38.39 on MacOS X. But it seems that nasm does not  
> know the file output format "macho" (Mac OS binary). I am receiving  
> the error "nasm: fatal: unrecognised output format `macho'"

Macho was added in 0.38.40 - not available as a "release" on 
SourceForge. You can get it from Apple:

http://www.opensource.apple.com/darwinsource/10.4.5.x86/

as "nasm-2" (scroll way down). Nasm on SF is "undergoing alterations". 
We expect a release of 0.99(!) with not only Macho but 64-bit 
support(!)... "real soon now".

> But in the nasm documentation the parameter "macho" is listed.

You must be looking at newer-than-0.98.39 docs. The "-hf" switch should 
give you a list of the output formats in that particular executable. 
*Should* be accurate.

> I would be please if you could tell what my mistake has been.

No mistake... unless expecting Nasm to be ready for ya. You'll have to 
grab a "preview" version - from Apple, or off the CVS tree (anonymous 
CVS is *not* synched with developer CVS so you might miss the very 
latest changes...), and compile it yourself.

If you do so, and get it working, I'd like to see a simple example"hello 
world". Low-level as MacOS will allow - I assume "call printf" looks 
like "call printf"... but it might be "call _printf", even that 
information would be interesting!

Best,
Frank