[96413] in RedHat Linux List
Re: how to compile a library ?
daemon@ATHENA.MIT.EDU (Emmanuel Papirakis)
Mon Oct 26 23:28:11 1998
From: "Emmanuel Papirakis" <epapirakis@hotmail.com>
To: redhat-list@redhat.com
Date: Mon, 26 Oct 1998 20:27:05 PST
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
>given some code, how do I compile it as a dynamically linkable shared
Hey,
There are two howtos on the subject. The gcc howto and the elf howto.
Let's say that I have a file called papi.c and I want to make the linked
object libpapi.so (all dynamic libraries in unix follw the format
lib*.so).
I just do:
gcc -fPIC papi.c (and a list of other programs that go in the librarie)
gcc -shared -Wl,-soname,libpapi.so.1 -o libpapi.so.1.0 *.o
Then I make a sym-link with the following command:
ln -s libpapi.so.1.0 libpapi.so.1
ln -s libpapi.so.1 libpapi.so
This is good for maintanance pusposes (read the howto's for more info).
Then, either move the files created in /lib, /usr/lib or something in
/etc/ld.so.conf. Or add a directory you would like your librarie to be
in in /etc/ld.so.conf and run ldconfig.
You could also just set the LD_LIBRARY_PATH variable to the value of
the directory you want them in. Finaly, to link a program with this
library, run:
gcc [a bunch of flags] yourprogram.c -lpapi
Papi
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