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cmGeneratedFileStream: Do not remove empty path

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If `Close()` is called when a file was never opened, we have no
temporary file path.  Do not try to remove it.  Some implementations of
`unlink()` crash on an empty path (though the documented behavior is to
fail with `ENOENT`).

Fixes: #23414
This commit is contained in:
Brad King
2022-04-29 11:52:45 -04:00
parent a8c8842101
commit 71ded12a75
1 changed files with 3 additions and 1 deletions
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4
Source/cmGeneratedFileStream.cxx
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@@ -180,7 +180,9 @@ bool cmGeneratedFileStreamBase::Close()
// Else, the destination was not replaced.
//
// Always delete the temporary file. We never want it to stay around.
cmSystemTools::RemoveFile(this->TempName);
if (!this->TempName.empty()) {
cmSystemTools::RemoveFile(this->TempName);
}
return replaced;
}