cannot link moc: undefined reference to `QCommandLineOption::setFlags

$ make
cd src/ && ( test -e Makefile || /usr/home/rutledge/dev/qt59-dbg/qtbase/bin/qmake -o Makefile /usr/home/rutledge/dev/qt59/qtbase/src/src.pro ) && make -f Makefile
cd tools/bootstrap/ && ( test -e Makefile || /usr/home/rutledge/dev/qt59-dbg/qtbase/bin/qmake -o Makefile /usr/home/rutledge/dev/qt59/qtbase/src/tools/bootstrap/bootstrap.pro ) && make -f Makefile
cd tools/moc/ && ( test -e Makefile || /usr/home/rutledge/dev/qt59-dbg/qtbase/bin/qmake -o Makefile /usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/moc.pro ) && make -f Makefile
clang++ -Wl,--gc-sections -pthread -o ../../../bin/moc .obj/moc.o  .obj/preprocessor.o  .obj/generator.o  .obj/parser.o  .obj/token.o  .obj/main.o   -L/usr/local/lib -L/usr/home/rutledge/dev/qt59-dbg/qtbase/lib -lQt5Bootstrap -lz
.obj/main.o: In function `runMoc(int, char**)':
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0xc1d): undefined reference to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)'
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0xd3b): undefined reference to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)'
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0xe59): undefined reference to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)'
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0x1036): undefined reference to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)'
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0x1154): undefined reference to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)'
.obj/main.o:/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0x1272): more undefined references to `QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)' follow
.obj/main.o: In function `runMoc(int, char**)':
/usr/home/rutledge/dev/qt59/qtbase/src/tools/moc/main.cpp:(.text+0x508e): undefined reference to `QtPrivate::QStringList_join(QStringList const&, QLatin1String)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

Stop.
make[2]: stopped in /usr/home/rutledge/dev/qt59-dbg/qtbase/src/tools/moc
*** Error code 1

Stop.
make[1]: stopped in /usr/home/rutledge/dev/qt59-dbg/qtbase/src
*** Error code 1

Stop.
make: stopped in /usr/home/rutledge/dev/qt59-dbg/qtbase

$ nm -C ./lib/libQt5Bootstrap.a  | grep -i QCommandLineOption
         U QCommandLineOption::QCommandLineOption(QStringList const&, QString const&, QString const&, QString const&)
         U QCommandLineOption::QCommandLineOption(QCommandLineOption const&)
         U QCommandLineOption::~QCommandLineOption()
00000000 T QCommandLineParser::addOptions(QList<QCommandLineOption> const&)
00000000 T QCommandLineParser::addOption(QCommandLineOption const&)
00000000 W QList<QCommandLineOption>::detach_helper_grow(int, int)
         U QCommandLineOption::description() const
         U QCommandLineOption::defaultValues() const
         U QCommandLineOption::flags() const
         U QCommandLineOption::names() const
         U QCommandLineOption::valueName() const
00000000 T QCommandLineParser::isSet(QCommandLineOption const&) const
00000000 T QCommandLineParser::value(QCommandLineOption const&) const
00000000 T QCommandLineParser::values(QCommandLineOption const&) const
qcommandlineoption.o:
00000000 T QCommandLineOption::setValueName(QString const&)
00000000 T QCommandLineOption::setDescription(QString const&)
00000000 T QCommandLineOption::setDefaultValue(QString const&)
00000000 T QCommandLineOption::setDefaultValues(QStringList const&)
00000000 T QCommandLineOption::setFlags(QFlags<QCommandLineOption::Flag>)
00000000 T QCommandLineOption::QCommandLineOption(QStringList const&)
00000000 T QCommandLineOption::QCommandLineOption(QStringList const&, QString const&, QString const&, QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QString const&, QString const&, QString const&, QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QCommandLineOption const&)
00000000 T QCommandLineOption::QCommandLineOption(QStringList const&)
00000000 T QCommandLineOption::QCommandLineOption(QStringList const&, QString const&, QString const&, QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QString const&, QString const&, QString const&, QString const&)
00000000 T QCommandLineOption::QCommandLineOption(QCommandLineOption const&)
00000000 T QCommandLineOption::~QCommandLineOption()
00000000 T QCommandLineOption::~QCommandLineOption()
00000000 T QCommandLineOption::operator=(QCommandLineOption const&)
00000000 T QCommandLineOptionPrivate::removeInvalidNames(QStringList)
00000000 W QCommandLineOptionPrivate::QCommandLineOptionPrivate(QStringList const&)
00000000 W QCommandLineOptionPrivate::QCommandLineOptionPrivate(QString const&)
00000000 W QCommandLineOptionPrivate::QCommandLineOptionPrivate(QCommandLineOptionPrivate const&)
00000000 W QCommandLineOptionPrivate::~QCommandLineOptionPrivate()
00000000 T QCommandLineOption::description() const
00000000 T QCommandLineOption::defaultValues() const
00000000 T QCommandLineOption::flags() const
00000000 T QCommandLineOption::names() const
00000000 T QCommandLineOption::valueName() const