stlcstrReturn
ftp://ftp.de.debian.org/debian/pool/main/g/gdcm/gdcm_3.0.24.orig.tar.xz
gdcm-3.0.24/Source/MediaStorageAndFileFormat/gdcmDirectoryHelper.cxx:274:3: performance: Returning the result of c_str() in a function that returns std::string is slow and redundant. [stlcstrReturn]