Bugzilla Bug 249656

If you have installed mono-addins without gtk USE flag, monodevelop will break
in the configure phase

======================
checking for MONO_ADDINS... yes
checking for MONO_ADDINS_SETUP... yes
checking for MONO_ADDINS_GUI... configure: error: Package requirements
(mono-addins-gui >= 0.3) were not met:

No package 'mono-addins-gui' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables MONO_ADDINS_GUI_CFLAGS
and MONO_ADDINS_GUI_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
======================

When you rebuild "dev-dotnet/mono-addins" with set gtk USE flag,
"dev-util/monodevelop-1.9.1" will compile fine.

Perhabs you are able to use the use flag dependency introduced with EAPI 2.

Reproducible: Always

Steps to Reproduce:

Fixed, thank you.