gcc, gcc-sys

Determines whether certain GNU macros are defined or undefined.

IDE Equivalent

Windows: None

Linux: Preprocessor > gcc Predefined Macro Enablement

Mac OS X: Preprocessor > Predefine gcc Macros

IA-32, Intel® 64 architectures

Linux and Mac OS X:

-gcc

-no-gcc

-gcc-sys

Windows:

None

None

-gcc	The compiler defines the GNU macros __GNUC__, __GNUC_MINOR__, and __GNUC_PATCHLEVEL__

This option determines whether the GNU macros __GNUC__, __GNUC_MINOR__, and __GNUC_PATCHLEVEL__ are defined or undefined.

Option	Description
-gcc	Defines GNU macros.
-no-gcc	Undefines GNU macros.
-gcc-sys	Defines GNU macros only during compilation of system headers.

None