A hash ref of preprocessor variables. Unlike C, variables may be arbitrarily complex, in particular you can use hash or array refs as values. By default directories are created silently if required. Creating macros When talking about code refs, we need a possibility to create them. Currently conditionals must start at the beginning of a line and expressions must not exceed a single line.
Nesting conditions is possible.
Then you add the following to your Makefile. The MakeMaker utility will automatically detect these files for you and add appropriate rules to the Makefile it generates. All rights reserved.