libraries: satart / stop daemons

Nicolas Williams Nicolas.Williams at
Fri Jan 21 19:50:16 GMT 2000

On Sat Jan 22 2000 - 07:28:32 EST, Cole, Timothy D. wrote:
> > nothing loads! 
> > 
> > any suggestions anyone? 
> > 
>         Write wrapper shell scripts for each executable; use them to set 
> LD_LIBRARY_PATH appropriately before exec-ing the binaries. 
>         So, smbd would become smbd.bin, and you'd have an in the 
> source tree something like: 
>         #!/bin/sh 
>         export LD_LIBRARY_PATH=@libdir@:$LD_LIBRARY_PATH 
>         exec $0.bin "$@" 
>         It should get substituted by autoconf, and the resulting script 
> installed in the binaries directory. 

Or build correctly. Meaning: use the -R linker flag to hardcode a list
of paths to search for at load time for the libraries.


Like so:

ld ... -R/usr/local/lib:/opt/samba/lib ... -lsamba ...

I know libtool supports this, somehow, but I haven't touched libtool in
some time. Hmmm. Looking at the info files that come with libtool it
seems that the way to set the library paths is via the -rpath and or -R
argument to libtool.

LD_LIBRARY_PATH is a debug tool. :)

On Solaris 7 and higher you can reference '$ORIGIN' in the -R paths and
the linker will substitute the bin dir of the binary for '$ORIGIN'. This
feature makes binaries easily relocatable without having to resort to
wrappers and should be available on all Unixen, IMNSHO.

ld ... -R\$ORIGIN/../lib:/usr/local/lib ...

Hmmm. I like that $ORIGIN feature.

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