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edward_h_1
Beginner
45 Views

Can't find library libmkl_intel_lp64 OS X

using OS X 10.10.3 with fresh install of mkl and Eclipse MARS.2

 

from the command line I run:

gcc nec2c.o somnec.o misc.o -l /opt/intel/mkl/lib/lib

and get

ld: library not found for -l/opt/intel/mkl/lib/libmkl_intel_lp64

but it is there:

ls /opt/intel/mkl/lib/libmkl_intel_lp64.a

/opt/intel/mkl/lib/libmkl_intel_lp64.a 

 

BUT... if I leave out the '-l' flag, the file

is found and linked (and, of course, results in

many other unresolved references).

 

If I put in the '-L' flag to point to the directory

and just '-llibmkl_intel_lp64' I get the same results.

 

Any idea why gcc can't find the libraries?  Is there a

file or directory privileges issue, perhaps?

 

thanks....

0 Kudos
2 Replies
edward_h_1
Beginner
45 Views

Folks:

Sorry to have bothered you...

turns out you should leave out the 'lib' in 'libmkl_intel_lp64'.

Not sure how I should have known it but... well... there it is.

Thanks to all who took the time.

ward
 

 

mecej4
Black Belt
45 Views

The topic of standard library naming, creation and usage conventions in Unix/Linux is something that is worth becoming familiar with.

See, for example, http://www.yolinux.com/TUTORIALS/LibraryArchives-StaticAndDynamic.html .

In particular, note that the -l (lower case L) and -L linker options (usually passed by compiler drivers to the linker ld, or directly to ld) have quite different meanings.