-requireprotos
Controls whether or not the compiler should expect function prototypes.
Syntax
-r[equireprotos]
Related information
-char
-defaults
-encoding
-flag
-gccext
-gcc_extensions
-M
-make
-mapcr
-MM
-MD
-MMD
-msext
-once
-pragma
-relax_pointers
-search
-trigraphs