common/build-style/qmake: use custom qt.conf for cross compiling

[ci skip]

common/build-style/qmake.sh

@@ -3,6 +3,7 @@
 #
 do_configure() {
 	local qmake
+	local qmake_args
 	if [ -x "/usr/lib/qt5/bin/qmake" ]; then
 		# Qt5 qmake
 		qmake="/usr/lib/qt5/bin/qmake"
@@ -14,7 +15,35 @@ do_configure() {
 	if [ -z "${qmake}" ]; then
 		msg_error "${pkgver}: Could not find qmake - missing in hostdepends?\n"
 	fi
-	${qmake} ${configure_args} \
+	if [ "$CROSS_BUILD" ] && [ "$qmake" == "/usr/lib/qt5/bin/qmake" ]; then
+		cat > "${wrksrc}/qt.conf" <<_EOF
+[Paths]
+Sysroot=${XBPS_CROSS_BASE}
+Prefix=${XBPS_CROSS_BASE}/usr
+ArchData=${XBPS_CROSS_BASE}/usr/lib/qt5
+Data=${XBPS_CROSS_BASE}/usr/share/qt5
+Documentation=${XBPS_CROSS_BASE}/usr/share/doc/qt5
+Headers=${XBPS_CROSS_BASE}/usr/include/qt5
+Libraries=${XBPS_CROSS_BASE}/usr/lib
+LibraryExecutables=/usr/lib/qt5/libexec
+Binaries=/usr/lib/qt5/bin
+Tests=${XBPS_CROSS_BASE}/usr/tests
+Plugins=/usr/lib/qt5/plugins
+Imports=${XBPS_CROSS_BASE}/usr/lib/qt5/imports
+Qml2Imports=${XBPS_CROSS_BASE}/usr/lib/qt5/qml
+Translations=${XBPS_CROSS_BASE}/usr/share/qt5/translations
+Settings=${XBPS_CROSS_BASE}/etc/xdg
+Examples=${XBPS_CROSS_BASE}/usr/share/qt5/examples
+HostPrefix=/usr
+HostData=/usr/lib/qt5
+HostBinaries=/usr/lib/qt5/bin
+HostLibraries=/usr/lib
+Spec=linux-g++
+TargetSpec=linux-g++
+_EOF
+		qmake_args="-qtconf ${wrksrc}/qt.conf"
+	fi
+	${qmake} ${qmake_args} ${configure_args} \
 		PREFIX=/usr \
 		LIB=/usr/lib \
 		QMAKE_CC=$CC QMAKE_CXX=$CXX QMAKE_LINK=$CXX QMAKE_LINK_C=$CC \