1. 22 Jun, 2015 1 commit
  2. 14 Nov, 2014 2 commits
    • Brad King's avatar
      Add an option for explicit BYPRODUCTS of custom commands (#14963) · e15a7075
      Brad King authored
      A common idiom in CMake-based build systems is to have custom commands
      that generate files not listed explicitly as outputs so that these
      files do not have to be newer than the inputs.  The file modification
      times of such "byproducts" are updated only when their content changes.
      Then other build rules can depend on the byproducts explicitly so that
      their dependents rebuild when the content of the original byproducts
      really does change.
      
      This "undeclared byproduct" approach is necessary for Makefile, VS, and
      Xcode build tools because if a byproduct were listed as an output of a
      rule then the rule would always rerun when the input is newer than the
      byproduct but the byproduct may never be updated.
      
      Ninja solves this problem by offering a 'restat' feature to check
      whether an output was really modified after running a rule and tracking
      the fact that it is up to date separately from its timestamp.  However,
      Ninja also stats all dependencies up front and will only restat files
      that are listed as outputs of rules with the 'restat' option enabled.
      Therefore an undeclared byproduct that does not exist at the start of
      the build will be considered missing and the build will fail even if
      other dependencies would cause the byproduct to be available before its
      dependents build.
      
      CMake works around this limitation by adding 'phony' build rules for
      custom command dependencies in the build tree that do not have any
      explicit specification of what produces them.  This is not optimal
      because it prevents Ninja from reporting an error when an input to a
      rule really is missing.  A better approach is to allow projects to
      explicitly specify the byproducts of their custom commands so that no
      phony rules are needed for them.  In order to work with the non-Ninja
      generators, the byproducts must be known separately from the outputs.
      
      Add a new "BYPRODUCTS" option to the add_custom_command and
      add_custom_target commands to specify byproducts explicitly.  Teach the
      Ninja generator to specify byproducts as outputs of the custom commands.
      In the case of POST_BUILD, PRE_LINK, and PRE_BUILD events on targets
      that link, the byproducts must be specified as outputs of the link rule
      that runs the commands.  Activate 'restat' for such rules so that Ninja
      knows it needs to check the byproducts, but not for link rules that have
      no byproducts.
      e15a7075
    • Peter Collingbourne's avatar
      Ninja: Implement USES_TERMINAL using the console pool if available · f42d86f0
      Peter Collingbourne authored and Brad King's avatar Brad King committed
      f42d86f0
  3. 02 Apr, 2014 1 commit
    • Stephen Kelly's avatar
      cmTarget: Make the source files depend on the config. · e6971df6
      Stephen Kelly authored
      Disallow the use of config-specific source files with
      the Visual Studio and Xcode generators. They don't have
      any way to represent the condition currently.
      
      Use the same common-config API in cmQtAutoGenerators. While
      it accepts config-specific files, it doesn't have to support
      multiple configurations yet.
      
      Loop over the configs in cmTargetTraceDependencies
      and cmGlobalGenerator::WriteSummary and consume all source
      files.
      
      Loop over the configs in cmComputeTargetDepends and compute the
      object library dependencies for each config.
      e6971df6
  4. 12 Mar, 2014 1 commit
    • Brad King's avatar
      Generalize cmCustomCommandGenerator to more fields · bc993f27
      Brad King authored
      Until now the cmCustomCommandGenerator was used only to compute the
      command lines of a custom command.  Generalize it to get the comment,
      working directory, dependencies, and outputs of custom commands.  Update
      use in all generators to support this.
      bc993f27
  5. 09 Jan, 2014 1 commit
  6. 22 Nov, 2013 1 commit
  7. 01 Jul, 2013 1 commit
  8. 17 Mar, 2012 1 commit
  9. 26 Feb, 2012 1 commit
  10. 04 Feb, 2012 2 commits
  11. 02 Feb, 2012 1 commit