OSX/CI: KFileMetaData fails to build on branch master

[Marko Käning]

Building CXX object src/CMakeFiles/KF5FileMetaData.dir/simpleextractionresult.cpp.o
Generating moc_office2007extractortest.cpp
Generating moc_office2007extractor.cpp
[ 41%] [ 41%] Built target officeextractortest_automoc
Building CXX object src/CMakeFiles/KF5FileMetaData.dir/typeinfo.cpp.o
[ 43%] Building CXX object src/CMakeFiles/KF5FileMetaData.dir/usermetadata.cpp.o
/Users/marko/WC/KDECI-builds/kfilemetadata/src/usermetadata.cpp:140:13: error: use of undeclared identifier 'errno'
    return (errno != ENODATA);
            ^
/Users/marko/WC/KDECI-builds/kfilemetadata/src/usermetadata.cpp:140:22: error: use of undeclared identifier 'ENODATA'
    return (errno != ENODATA);
                     ^
/Users/marko/WC/KDECI-builds/kfilemetadata/src/usermetadata.cpp:156:13: error: use of undeclared identifier 'errno'
    return (errno == ENOTSUP);
            ^
/Users/marko/WC/KDECI-builds/kfilemetadata/src/usermetadata.cpp:156:22: error: use of undeclared identifier 'ENOTSUP'
    return (errno == ENOTSUP);
                     ^
4 errors generated.
make[2]: *** [src/CMakeFiles/KF5FileMetaData.dir/usermetadata.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [src/CMakeFiles/KF5FileMetaData.dir/all] Error 2
make: *** [all] Error 2

KDE Continuous Integration Build
== Building Project: kfilemetadata - Branch master