diff options
Diffstat (limited to 'Source/cmLocalGenerator.cxx')
| -rw-r--r-- | Source/cmLocalGenerator.cxx | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx index 9049a42..b63683f 100644 --- a/Source/cmLocalGenerator.cxx +++ b/Source/cmLocalGenerator.cxx @@ -1501,20 +1501,30 @@ void cmLocalGenerator::AddCompilerRequirementFlag( // This compiler has no notion of language standard levels. return; } - std::string stdProp = lang + "_STANDARD"; - const char* standardProp = target->GetProperty(stdProp); - if (!standardProp) { - return; - } std::string extProp = lang + "_EXTENSIONS"; - std::string type = "EXTENSION"; bool ext = true; if (const char* extPropValue = target->GetProperty(extProp)) { if (cmSystemTools::IsOff(extPropValue)) { ext = false; - type = "STANDARD"; } } + std::string stdProp = lang + "_STANDARD"; + const char* standardProp = target->GetProperty(stdProp); + if (!standardProp) { + if (ext) { + // No language standard is specified and extensions are not disabled. + // Check if this compiler needs a flag to enable extensions. + std::string const option_flag = + "CMAKE_" + lang + "_EXTENSION_COMPILE_OPTION"; + if (const char* opt = + target->Target->GetMakefile()->GetDefinition(option_flag)) { + this->AppendFlagEscape(flags, opt); + } + } + return; + } + + std::string const type = ext ? "EXTENSION" : "STANDARD"; if (target->GetPropertyAsBool(lang + "_STANDARD_REQUIRED")) { std::string option_flag = |