From: Dan Debertin <airboss@...>
Date: 2002-05-24T22:35:09+09:00
Subject: Re: cannot require 'postgres' from cgi

ahoward writes:

 > turns out (this took me a LONG time to determine) that the postgres.so lib has
 > dependancies on other libs which are not to be found in the LD_LIBRARY_PATH
 > (empty) of the default cgi environment but that WERE found in my own
 > LD_LIBRARY_PATH.

I had the same problem. Solaris, right? Rather than mucking with
LD_LIBRARY_PATH (which is an egregious hack anyway), I figured out how
to set the RUN_PATH during compilation. For ruby itself, there's an
$LDFLAGS global in ext/extmk.rb around line 555 that you can add
"-R/usr/local/lib" to. The Postgres module should have something
similar, though I've not compiled it.

Incidentally, it was kind of annoying that Ruby wouldn't take LDFLAGS
from my environment like every other package does. Usually one of the
following does the trick on Solaris:

make LDFLAGS=-R/usr/local/lib

LDFLAGS=-R/usr/local/lib ./configure ......

But with ruby I had to grovel through the build scripts looking for
the right variable.


 > 
 > it's a little troublesome that 'require' is unable to throw for this sort of
 > error...

It's not ruby's fault ;). It's the OS's runtime linker.

Dan
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