how to force linker to use shared library instead of static library?

Question

This is a quote from Linux programming book:

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% gcc -o app app.o -L. –ltest

Suppose that both libtest.

Answer 1

from the man :

-shared-libgcc
-static-libgcc
On systems that provide libgcc as a shared library, these options force the use of either the shared or static version respectively. If no shared version of libgcc was built when the compiler was configured, these options have no effect.

good luck