kc3-lang/libpng/scripts/cmake

Branch - branch -libpng16libpng17

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• Hash : 0cc6436e
  Author :
  Date : 2025-05-29T22:55:00
  

  build: Repair and reduce the CMake build dependency graph
  
  A funny thing happened while refactoring the function argument parsing
  in the `PNGGenConfig` module: the processing of dependencies inside
  the CMake function `generate_copy` got fixed, thanks to an inadvertent
  typo correction!
  
  Going down the rabbit hole, we uncovered two issues:
  
   1. A typo in `scripts/cmake/PNGGenConfig.cmake` caused a dependency
      declaration to disappear, disrupting the graph. Fortunately, this
      disruption was being mitigated by an additional set of (redundant)
      symbolic target declarations that kept the CMake build going.
  
   2. The exact string matching inside `scripts/cmake/gensrc.cmake.in`
      imposed an artificial limitation, disallowing the use of absolute
      file paths.
  
  The typo correction in (1), and the use of regex matching instead of
  exact string matching in (2), allowed us to use absolute file paths
  in the main CMake file, consistently, thus allowing CMake to recognize
  them as uniquely-identifiable nodes in the dependency graph. There
  should be no further need to have extra symbolic targets for proper
  node identification.
  
  In the end, we shaved off the redundant symbolic target declarations,
  retaining only `png_genfiles` and `png_genprebuilt`.
  

• Files

• AUTHORS.md
• PNGCheckLibconf.cmake
• PNGConfig.cmake
• PNGGenConfig.cmake
• PNGTest.cmake
• README.md
• genchk.cmake.in
• genout.cmake.in
• gensrc.cmake.in
• test.cmake.in

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• Git HTTP	https://git.kmx.io/kc3-lang/libpng.git
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