Commit e02e56c4 authored by Brad King's avatar Brad King Committed by Kitware Robot
Browse files

Merge topic 'fix-duplicate-custom-commands'

dccd4949 Use first custom command for the same output (#14446)
parents fa97f43c dccd4949
......@@ -1069,6 +1069,19 @@ void
cmMakefile::UpdateOutputToSourceMap(std::string const& output,
cmSourceFile* source)
OutputToSourceMap::iterator i = this->OutputToSource.find(output);
if(i != this->OutputToSource.end())
// Multiple custom commands produce the same output but may
// be attached to a different source file (MAIN_DEPENDENCY).
// LinearGetSourceFileWithOutput would return the first one,
// so keep the mapping for the first one.
// TODO: Warn the user about this case. However, the VS 8 generator
// triggers it for separate generate.stamp rules in ZERO_CHECK and
// individual targets.
this->OutputToSource[output] = source;
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