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- This directory contains test configuration files, currently always '.dfa' files
- intended to be used in the build by setting the make macro DFA_XTRA to the name
- of the file.
- These files are used in release validation of the 'configure' builds of libpng
- by building 'make check', or 'make all-am' for cross-builds, with each .dfa
- file.
- The files in this directory may change between minor releases, however
- contributions describing specific builds of libpng are welcomed. There is no
- guarantee that libpng will continue to build with such configurations; support
- for given configurations can be, and has been, dropped between successive minor
- releases. However if a .dfa file describing a configuration is not in this
- directory it is very unlikely that it will be tested before a minor release!
- You can use these .dfa files as the basis of new configurations. Files in this
- directory should not have any use restrictions or restrictive licenses.
- This directory is not included in the .zip and .7z distributions, which do
- not contain 'configure' scripts.
- DOCUMENTATION
- =============
- Examples:
- ${srcdir}/pngusr.dfa
- ${srcdir}/contrib/pngminim/*/pngusr.dfa
- Documentation of the options:
- ${srcdir}/scripts/pnglibconf.dfa
- Documentation of the file format:
- ${srcdir}/scripts/options.awk
- FILE NAMING
- ===========
- File names in this directory may NOT contain any of the five characters:
- - , + * ?
- Neither may they contain any space character.
- While other characters may be used it is strongly suggested that file names be
- limited to lower case Latiin alphabetic characters (a-z), digits (0-9) and, if
- necessary the underscore (_) character. File names should be about 8 characters
- long (excluding the .dfa extension). Submitted .dfa files should have names
- between 7 and 16 characters long, shorter names (6 characters or less) are
- reserved for standard tests.
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