Ari Jolma wrote:
> (This may be a general Perl question but since I have this problem
> only with mod_perl I'm asking it here.) Perl's (5.6.0) Configure script
> puts -D_FILE_OFFSET_BITS=64 into Config.pm's variable ccflags in
> my machine (redhat 6.1 with linux 2.2.12). This causes for some
> reason mod_perl.c to have stat structure with size 96 while it
> has the size 88 in apache (and it is 88 usually). The result is
> very poor behavior in make test. When I manually remove that
> compiler directive everything works fine. My mod_perl is 1.23
> and apache is 1.3.12. I believe I've had this problem for long since
> over the years :-) I've had this same problem occasionally but only
> now investigated it thoroughly using gdb. Can anybody give an
> explanation what is going on here?
I was bitten my a similar problem on Solaris. Basically I built perl
with the default configure settings on Solaris 8, which result in Perl
being made largefile aware, which is A Good Thing. However, when I
built Apache it was built without being largefile aware, which is A Very
Bad Thing - at least if you want to use mod_perl, that is. This is
because Perl and Apache don't agree on the size of off_t and other such
things that change between the 32 and 64 bit file offset worlds. I
fixed this by the simple expedient of making Apache largefile aware. On
Solaris this was easy - I just set CFLAGS="-D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64" in my environment before calling the Apache
configure. Apache built with no errors, and as far as I can tell up
until now it works just fine, including mod_perl. Obviously you are on
a different platform, but perhaps building Apache with the Linux
incantation needed to make it largefile aware will solve the problem for
you?
Alan Burlison
