cannot compile gupnp-igd-0.2.1

[jls]

glib2-dev is installed but I get:

gupnp-simple-igd.h:26:18: fatal error: glib.h: No such file or directory
compilation terminated.
make[3]: *** [gupnp-simple-igd.lo] Error 1
make[3]: Leaving directory `/home/tc/gupnp-igd/gupnp-igd-0.2.1/libgupnp-igd'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/tc/gupnp-igd/gupnp-igd-0.2.1/libgupnp-igd'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/tc/gupnp-igd/gupnp-igd-0.2.1'
make: *** [all] Error 2