3.1.1 ISO C90 and ANSI C89

Use --std-c89 to compile in this mode.

The latest publicly available version of the standard ISO/IEC 9899 - Programming languages - C should be available at: http://www.open-std.org/jtc1/sc22/wg14/www/standards.html#9899.

Deviations from standard compliance:

Some features of this standard are not supported in some ports: