[malekgnu@kelthuzad monouml]$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for pkg-config... /usr/bin/pkg-config
checking for mcs... /usr/bin/mcs
checking for a BSD-compatible install... /usr/bin/install -c
checking for gtk-sharp-2.0 >= 1.9.2 gnome-sharp-2.0 >= 1.9.2 glade-sharp-2.0 >= 1.9.2 mono >= 1.1.4... Package gtk-sharp-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gtk-sharp-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gtk-sharp-2.0' found

configure: error: Library requirements (gtk-sharp-2.0 >= 1.9.2 gnome-sharp-2.0 >= 1.9.2 glade-sharp-2.0 >= 1.9.2 mono >= 1.1.4) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.