Re: 64-bit compilation and printfs

[Adrian Robert <adrian.b.robert@gmail.com>]

On Oct 14, 2009, at 12:40 PM, Dan Nicolaescu wrote:

> It looks like this the 64-bit mode uses the 32-bit configuration file.
> From configure.in:
>
>  ## Apple Darwin / Mac OS X
>  *-apple-darwin* )
>    case "${canonical}" in
>      i[3456]86-* )  machine=intel386 ;;
>      powerpc-* )    machine=macppc ;;
>      * )            unported=yes ;;
>    esac
>
> there should be an:
>      x86_64-* )       machine=amdx86-64 ;;
> in that "case".
>
> that will allow to remove this from emacs/src/s/intel386.h:
>
> #if defined (DARWIN_OS)
> #ifdef _LP64
> /* For Intel Mac, with CC='gcc -arch x86_64'.  */
> #define NO_ARG_ARRAY
> #endif
> #endif
>
> there shouldn't be any _LP64 checks in that file.

OK, I'm adding the first and taking the second out.  It hasn't fired  
in some time anyway as DARWIN_OS is not defined yet (machine file  
comes before system file in config.h).

However, what is the purpose of the defining of START_FILES in  
amdx86-64.h?  The default case is:

#define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o

None of those files are on OS X machines (not sure about non-OS X  
Darwin).

I can exclude it under __APPLE__ but wanted to know why it was there  
first.


-Adrian