"Thomas H. George" <[EMAIL PROTECTED]> writes: > I am using source code from UNIX SYSTEMS PROGRAMMING by Robbins & > Robbins. It gives a compiler error unless compiled with the option > -D_GNU_SOURCE . > Where does this option come from - its not in the man pages?
It defines the preprocessor macro _GNU_SOURCE. If this macro is defined, the standard library headers adhere to certain standards and enable GNU extensions. See the comments at the top of /usr/include/features.h for how to make the standard library adhere to various standards. -- ,--. Martin Dickopp, Dresden, Germany ,= ,-_-. =. / ,- ) http://www.zero-based.org/ ((_/)o o(\_)) \ `-' `-'(. .)`-' `-. Debian, a variant of the GNU operating system. \_/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
