-flag

Specifies compiler #pragma as either on or off.

Syntax
  -fl[ag] [no-]pragma
Remarks

For example, this option setting

  -flag require_prototypes 

is equivalent to

  #pragma require_prototypes on 

This option setting

  -flag no-require_prototypes 

is the same as

  #pragma require_prototypes off 
Related information
-char
-defaults
-encoding
-gccext
-gcc_extensions
-M
-make
-mapcr
-MM
-MD
-MMD
-msext
-once
-pragma
-relax_pointers
-requireprotos
-search
-trigraphs