I can load functions from dynamic library with linking this dl ,but I can not load it using 'dlsym' in the code without linking this dl

I can load functions from dynamic library with linking this dl ,but I can
not load it using 'dlsym' in the code without linking this dl



1.Dynamic loading - Wikipedia, the free encyclopedia

Description:Dynamic loading is a mechanism by which a computer program
can, at run time, load a library (or other binary) into memory, retrieve
the addresses of functions and ...



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Description:You are allowed to write OpenCOBOL programs that use the
libcob run time library however you like. Closed, proprietary, commercial
use is allowed and encouraged.



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compiler installation guide. This section is intended to provide a brief
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Description:Options Controlling the Kind of Output. Compilation can
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linking, always in that order.