dlfcn.h — Define macros for use with dlopen()

The dlfcn.h header file declares the following macros for use in the construction of a dlopen() mode argument::

RTLD_LAZY
Relocations are performed at an implementation-defined time.
RTLD_NOW
Relocations are performed when the object is loaded.
RTLD_GLOBAL
All symbols are available for relocation processing of other modules.
RTLD_LOCAL
All symbols are not made available for relocation processing by other modules.