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Ninja: Add compile rules only for languages that are actually compiled

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In `WriteLanguageRules` we collect all languages used for source files
in a target.  However, this only needs to include sources that are
actually going to be compiled into object files.  No object file build
statements will be generated for other sources.

This avoids generating language compile rules for source files that
are not compiled due to being marked as `HEADER_FILE_ONLY`.

Issue: #16373
This commit is contained in:
Brad King
2016-10-18 15:35:10 -04:00
parent 96f6fe6b57
commit 3a9e92bce1
1 changed files with 4 additions and 3 deletions
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7
Source/cmNinjaNormalTargetGenerator.cxx
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@@ -106,10 +106,11 @@ void cmNinjaNormalTargetGenerator::WriteLanguagesRules()
// Write rules for languages compiled in this target.
std::set<std::string> languages;
std::vector<cmSourceFile*> sourceFiles;
this->GetGeneratorTarget()->GetSourceFiles(
std::vector<cmSourceFile const*> sourceFiles;
this->GetGeneratorTarget()->GetObjectSources(
sourceFiles, this->GetMakefile()->GetSafeDefinition("CMAKE_BUILD_TYPE"));
for (std::vector<cmSourceFile*>::const_iterator i = sourceFiles.begin();
for (std::vector<cmSourceFile const*>::const_iterator i =
sourceFiles.begin();
i != sourceFiles.end(); ++i) {
const std::string& lang = (*i)->GetLanguage();
if (!lang.empty()) {