Large File Support

[Art Haas]

"Rod MacNeil" <rmacneil at interactdirect.com> writes:

> Hello NG,
> 
> I need to build Python to include large file support on Redhat Linux 7.1.
> 
> I tried the following instructions from section 8.1.1 in the Python docs but
> it doesn't work:
> 
>     On large-file-capable Linux systems, this might work:
> 
> 
> CC="-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64"
> export CC
> ./configure
> 
> 
> I think this fails because the variable CC is expected to have the compiler
> name (gcc).
> 
> Does anyone have any alternative instructions?
> 

Don't set `CC', set `CFLAGS' ...

$ CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
$ export CFLAGS
$ ./configure
...

You'll probably have to go in and edit the Makefile, to set these same
flags for the `OPT' variable as well. Or, when you run `configure',
you could ...

$ ./configure OPT="-O2 ${CFLAGS}"

... and things should work. If you want to have debug info in the
compiled program, add a `-g' to the OPT variable. Check the makefile
when configure finishes to ensure that the largefile flags are in the
OPT variable.

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# Art Haas
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