README 1.8 KB

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  1. This directory contains test configuration files, currently always '.dfa' files
  2. intended to be used in the build by setting the make macro DFA_XTRA to the name
  3. of the file.
  4. These files are used in release validation of the 'configure' builds of libpng
  5. by building 'make check', or 'make all-am' for cross-builds, with each .dfa
  6. file.
  7. The files in this directory may change between minor releases, however
  8. contributions describing specific builds of libpng are welcomed. There is no
  9. guarantee that libpng will continue to build with such configurations; support
  10. for given configurations can be, and has been, dropped between successive minor
  11. releases. However if a .dfa file describing a configuration is not in this
  12. directory it is very unlikely that it will be tested before a minor release!
  13. You can use these .dfa files as the basis of new configurations. Files in this
  14. directory should not have any use restrictions or restrictive licenses.
  15. This directory is not included in the .zip and .7z distributions, which do
  16. not contain 'configure' scripts.
  17. DOCUMENTATION
  18. =============
  19. Examples:
  20. ${srcdir}/pngusr.dfa
  21. ${srcdir}/contrib/pngminim/*/pngusr.dfa
  22. Documentation of the options:
  23. ${srcdir}/scripts/pnglibconf.dfa
  24. Documentation of the file format:
  25. ${srcdir}/scripts/options.awk
  26. FILE NAMING
  27. ===========
  28. File names in this directory may NOT contain any of the five characters:
  29. - , + * ?
  30. Neither may they contain any space character.
  31. While other characters may be used it is strongly suggested that file names be
  32. limited to lower case Latiin alphabetic characters (a-z), digits (0-9) and, if
  33. necessary the underscore (_) character. File names should be about 8 characters
  34. long (excluding the .dfa extension). Submitted .dfa files should have names
  35. between 7 and 16 characters long, shorter names (6 characters or less) are
  36. reserved for standard tests.