diff options
Diffstat (limited to 'Source/cmLocalGenerator.cxx')
| -rw-r--r-- | Source/cmLocalGenerator.cxx | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx index 921be3ba94..2bd7e4ea38 100644 --- a/Source/cmLocalGenerator.cxx +++ b/Source/cmLocalGenerator.cxx @@ -1637,8 +1637,10 @@ void cmLocalGenerator::AddCompilerRequirementFlag( return; } - // Greater or equal because the standards are stored in - // backward chronological order. + // If the standard requested is older than the compiler's default + // then we need to use a flag to change it. The comparison is + // greater-or-equal because the standards are stored in backward + // chronological order. if (stdIt >= defaultStdIt) { std::string option_flag = "CMAKE_" + lang + *stdIt + "_" + type + "_COMPILE_OPTION"; @@ -1649,6 +1651,9 @@ void cmLocalGenerator::AddCompilerRequirementFlag( return; } + // The standard requested is at least as new as the compiler's default, + // and the standard request is not required. Decay to the newest standard + // for which a flag is defined. for (; stdIt < defaultStdIt; ++stdIt) { std::string option_flag = "CMAKE_" + lang + *stdIt + "_" + type + "_COMPILE_OPTION"; |