diff options
Diffstat (limited to 'build2/cxx/init.cxx')
| -rw-r--r-- | build2/cxx/init.cxx | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/build2/cxx/init.cxx b/build2/cxx/init.cxx index 7f099cf..6c8cbad 100644 --- a/build2/cxx/init.cxx +++ b/build2/cxx/init.cxx @@ -355,7 +355,17 @@ namespace build2 v["cc.system"], v["cc.module_name"], v["cc.reprocess"], - v["cc.preprocessed"], + + // Ability to indicate that source is already (partially) + // preprocessed. Valid values are 'none' (not preprocessed), + // 'includes' (no #include directives in source), 'modules' (as above + // plus no module declaration depends on preprocessor, e.g., #ifdef, + // etc), and 'all' (the source is fully preprocessed). Note that for + // 'all' the source can still contain comments and line + // continuations. Note also that for some compilers (e.g., VC) there + // is no way to signal that the source is already preprocessed. + // + v.insert<string> ("cxx.preprocessed"), v.insert<string> ("cxx.std", variable_visibility::project), |