Quoth James McDonald:So as usual I discover the Linux system is inherently better than the old windows system. Thanks kurt most informative...
My question is:
Lets say you had two versions of libmytestlib.so in /usr/lib and /usr/local/lib how do you tell it to pick up one particular library over another...
Note that a properly-compiled library doesn't use libmytestlib.so. Rather, it uses explicit library versons, say, libmytestlib-1.2.so, and and allows the dynamic linker/loader (ld.so an GNU libc systems) to
figure out the library version at run time.
At compile time, you modify the library path fed to the compiler so that
one gets found before the other. Compare
$ gcc foo.c -L /usr/lib -L /usr/local/lib -lmytestlib
to
$ gcc foo.c -L /usr/local/lib -L /usr/lib -lmytestlib
I presume LD_LIBRARY_PATH is parsed left to right but what happens when you want to explicitly assign individual libs ?
You use LD_LIBRARY_PATH at run time.
Ohh and BTW barefeet and a hot cow pat can be heaven on a cold morning.
Eew.
Kurt
-- James McDonald (Would you like fries with that MCSE?)
Singleton Australia
61+ (0)2 65712401 61+ 0428 320 219
15:10:00 up 4 days, 17:34, 6 users, load average: 0.29, 0.20, 0.14 Linux 2.4.22 #1 Mon Sep 1 20:03:11 EST 2003 athlon i386 GNU/Linux
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