environment variable for daemon

[chnauman]

I am using an opensource utility wav2png. When I execute it through shell by any user it works fine. I uses a library libsndfile, which is placed at /usr/local/lib. I added this path to PATH env variable. I added this path to PATH variable and export command for update PATH in /etc/profile.
But when I call wav2png command using system() in php, it says cannot found shared library libsndfile. and when printed the PATH through system command /usr/local/lib is not there..
I tried to add my library path through putenv method of php, but no luck.. If anybody can help me, I will be very thankful

[Siddly]

This is an ancient script I have lying around which should give you an idea
-------------------------------------------------------
#!/bin/sh
LD_PRELOAD=/libdl.so.2:/libc.so.6
export LD_PRELOAD
/opt/MultiLink/bin/Viewer&
-------------------------------------------------------

An alternative method would be to have a script with export
#!/bin/sh
export LD_LIBRARY_PATH=/usr/local/lib
wav2png

Hope that helps.

[atreyu]

Siddly's got it. Another thing you can do is put the lib's directory in a file on a single line in the directory /etc/ld.so.conf.d/ and give the file a .conf file extension.

So, for example, you could create a file called /etc/ld.so.conf.d/local.conf and in it put:

/usr/local/lib

Then run a command to update the shared library cache on the system:

ldconfig

Now look for your library in the cache:

ldconfig -p|grep wav2png

If you see it, then you should be able call wav2png from the command line without having to worry about the location of the library.

Btw, this is what works for me on Fedora/RH based systems. ymmv.

[Siddly]

Siddly's got it. Another thing you can do is put the lib's directory in a file on a single line in the directory /etc/ld.so.conf.d/ and give the file a .conf file extension.

So, for example, you could create a file called /etc/ld.so.conf.d/local.conf and in it put:

/usr/local/lib

Then run a command to update the shared library cache on the system:

ldconfig

Now look for your library in the cache:

ldconfig -p|grep wav2png

If you see it, then you should be able call wav2png from the command line without having to worry about the location of the library.

Btw, this is what works for me on Fedora/RH based systems. ymmv.

Having a separate entry in /etc/ld/so/conf.d also will do the job, there are always many ways to skin the cat.

[atreyu]

Having a separate entry in /etc/ld/so/conf.d also will do the job, there are always many ways to skin the cat.

Indeed, that is the bane, and the beauty of Linux.