geoclue2 : build error with dependency glib2 +quartz

[tk7r (Thomas Kotzian)]

i am trying to build geoclue2 but the build stops with the following error

/usr/bin/clang -DHAVE_CONFIG_H -I. -I.. -I/opt/local/include -D_REENTRANT -I/opt/local/include/gio-unix-2.0/ -I/opt/local/include/gdk-pixbuf-2.0 -I/opt/local/include/libpng16 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -Wall -DLOCALEDIR="\"/opt/local/share/locale\"" -DABS_SRCDIR=\""/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_geoclue2/geoclue2/work/geoclue-2.4.10/demo"\" -I../src -I../src -I../src/agent -I../src/agent -I../public-api -I../public-api -pipe -Os -arch x86_64 -O0 -ggdb3 -MT agent-gclue-service-agent.o -MD -MP -MF .deps/agent-gclue-service-agent.Tpo -c -o agent-gclue-service-agent.o test -f 'gclue-service-agent.c' || echo './'gclue-service-agent.c :info:build gclue-service-agent.c:26:10: fatal error: 'gio/gdesktopappinfo.h' file not found :info:build #include <gio/gdesktopappinfo.h> :info:build ^{:info:build 1 error generated. :info:build make[2]: * [agent-gclue-service-agent.o] Error 1}

looking into the contents of glib2 (+quartz) there is no such header file "gio/gdesktopappinfo.h". - is it a problem with glib2 using variant +quartz or has the missing file been removed in a newer glib2 version?

please help!