diff options
Diffstat (limited to 'Source/cmGlobalNinjaGenerator.cxx')
| -rw-r--r-- | Source/cmGlobalNinjaGenerator.cxx | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx index b0b0cd6..16cdcd3 100644 --- a/Source/cmGlobalNinjaGenerator.cxx +++ b/Source/cmGlobalNinjaGenerator.cxx @@ -555,6 +555,7 @@ void cmGlobalNinjaGenerator::Generate() this->TargetAll = this->NinjaOutputPath("all"); this->CMakeCacheFile = this->NinjaOutputPath("CMakeCache.txt"); this->DisableCleandead = false; + this->DiagnosedCxxModuleSupport = false; this->PolicyCMP0058 = this->LocalGenerators[0]->GetMakefile()->GetPolicyStatus( @@ -755,6 +756,37 @@ bool cmGlobalNinjaGenerator::CheckLanguages( return true; } +bool cmGlobalNinjaGenerator::CheckCxxModuleSupport() +{ + bool const diagnose = !this->DiagnosedCxxModuleSupport && + !this->CMakeInstance->GetIsInTryCompile(); + if (diagnose) { + this->DiagnosedCxxModuleSupport = true; + this->GetCMakeInstance()->IssueMessage( + MessageType::AUTHOR_WARNING, + "C++20 modules support via CMAKE_EXPERIMENTAL_CXX_MODULE_DYNDEP " + "is experimental. It is meant only for compiler developers to try."); + } + if (this->NinjaSupportsDyndeps) { + return true; + } + if (diagnose) { + std::ostringstream e; + /* clang-format off */ + e << + "The Ninja generator does not support C++20 modules " + "using Ninja version \n" + " " << this->NinjaVersion << "\n" + "due to lack of required features. " + "Ninja " << RequiredNinjaVersionForDyndeps() << " or higher is required." + ; + /* clang-format on */ + this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str()); + cmSystemTools::SetFatalErrorOccured(); + } + return false; +} + bool cmGlobalNinjaGenerator::CheckFortran(cmMakefile* mf) const { if (this->NinjaSupportsDyndeps) { |