Lets take the below code , If the macro HAVE_SYS_SELECT_H is defined then they included the header file. I need to know where the macro is ? That is in which which header file the macro is defined.
Is there any option for that while compiling the source code ?
Is there is a way to find the header file ?
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
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