checking pkg-config is at least version 0.9.0... yes
checking for NOSTROMO_CFLAGS... 
checking for NOSTROMO_LIBS... 
configure: error: Package requirements (gtk+-2.0 libxml-2.0) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively you may set the NOSTROMO_CFLAGS and NOSTROMO_LIBS environment variables
to avoid the need to call pkg-config.  See the pkg-config man page for
more details.