python-PyQt5: set nocross=yes for now

Cross compiling obviously needs fixes which I could not devise yet.
Also see #5143

srcpkgs/python-PyQt5/template

@@ -19,6 +19,9 @@ homepage="http://www.riverbankcomputing.co.uk/software/pyqt/intro"
 license="GPL-3"
 distfiles="${SOURCEFORGE_SITE}/pyqt/PyQt5_gpl-${version}.tar.gz"
 checksum=892693ba5f79989abb2061dad2d5c4e6f127e9dd3240f73f8220c7152cd35b05
+# FIXME: Cross fails because make -f qtdetail uses g++ but $CXXFLAGS
+# qtdetail is a host tool and should be compiled as such
+nocross=yes
 
 pre_build() {
 	mkdir -p pyqt5-${py2_ver}