Ninja generator ensures that all custom commands being target dependencies are run before other sources compilation. However in case there are no such dependencies it does currently generate empty phony rules which clutter build graph.
This change make Ninja generator produce this rules only when necessary. --- Source/cmNinjaTargetGenerator.cxx | 30 +++++++++++++++++------------- Source/cmNinjaTargetGenerator.h | 3 ++- 2 files changed, 19 insertions(+), 14 deletions(-) diff --git a/Source/cmNinjaTargetGenerator.cxx b/Source/cmNinjaTargetGenerator.cxx index 24689fb..57789ee 100644 --- a/Source/cmNinjaTargetGenerator.cxx +++ b/Source/cmNinjaTargetGenerator.cxx @@ -542,22 +542,24 @@ cmNinjaTargetGenerator std::back_inserter(orderOnlyDeps), MapToNinjaPath()); } - cmNinjaDeps orderOnlyTarget; - orderOnlyTarget.push_back(this->OrderDependsTargetForTarget()); - this->GetGlobalGenerator()->WritePhonyBuild(this->GetBuildFileStream(), - "Order-only phony target for " - + this->GetTargetName(), - orderOnlyTarget, - cmNinjaDeps(), - cmNinjaDeps(), - orderOnlyDeps); - + if (!orderOnlyDeps.empty()) + { + cmNinjaDeps orderOnlyTarget; + orderOnlyTarget.push_back(this->OrderDependsTargetForTarget()); + this->GetGlobalGenerator()->WritePhonyBuild(this->GetBuildFileStream(), + "Order-only phony target for " + + this->GetTargetName(), + orderOnlyTarget, + cmNinjaDeps(), + cmNinjaDeps(), + orderOnlyDeps); + } std::vector<cmSourceFile const*> objectSources; this->GeneratorTarget->GetObjectSources(objectSources, config); for(std::vector<cmSourceFile const*>::const_iterator si = objectSources.begin(); si != objectSources.end(); ++si) { - this->WriteObjectBuildStatement(*si); + this->WriteObjectBuildStatement(*si, !orderOnlyDeps.empty()); } std::string def = this->GeneratorTarget->GetModuleDefinitionFile(config); if(!def.empty()) @@ -570,7 +572,8 @@ cmNinjaTargetGenerator void cmNinjaTargetGenerator -::WriteObjectBuildStatement(cmSourceFile const* source) +::WriteObjectBuildStatement( + cmSourceFile const* source, bool writeOrderDependsTargetForTarget) { std::string comment; const std::string language = source->GetLanguage(); @@ -599,7 +602,8 @@ cmNinjaTargetGenerator } cmNinjaDeps orderOnlyDeps; - orderOnlyDeps.push_back(this->OrderDependsTargetForTarget()); + if (writeOrderDependsTargetForTarget) + orderOnlyDeps.push_back(this->OrderDependsTargetForTarget()); // If the source file is GENERATED and does not have a custom command // (either attached to this source file or another one), assume that one of diff --git a/Source/cmNinjaTargetGenerator.h b/Source/cmNinjaTargetGenerator.h index 94c420f..1a0c206 100644 --- a/Source/cmNinjaTargetGenerator.h +++ b/Source/cmNinjaTargetGenerator.h @@ -114,7 +114,8 @@ protected: void WriteLanguageRules(const std::string& language); void WriteCompileRule(const std::string& language); void WriteObjectBuildStatements(); - void WriteObjectBuildStatement(cmSourceFile const* source); + void WriteObjectBuildStatement(cmSourceFile const* source, + bool writeOrderDependsTargetForTarget = true); void WriteCustomCommandBuildStatement(cmCustomCommand *cc); cmNinjaDeps GetObjects() const -- 1.9.3 (Apple Git-50) -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers