Gcc -fPIC vs. -shared

Question

When compiling a shared library with gcc / g ++, why -fPICnot the option -shared? Or, in another way, is there an option -fPICneeded for link time?

In short, I have to write:

gcc -c -fPIC foo.c -o foo.o
gcc -shared -fPIC foo.o -o libfoo.so  // with -fPIC

or enough:

gcc -c -fPIC foo.c -o foo.o
gcc -shared foo.o -o libfoo.so // without -fPIC

Answer 1

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