Arch Linux

build fails. Upstream bug: https://bugs.kde.org/show_bug.cgi?id=254629

The necessary file from the errro message:
"fatal error: mono/jit/jit.h: No such file or directory"

is now located under /usr/inlcude/mono-2.0/jit/jit.h. This just as small information to this bug.

yes I noticed that. I cannot find an option to set Mono include dir using CMake

Okay, i was wrong. I have tested the following:

$ pkg-config --libs --cflags mono

returns nothing in the new package.
It returned this in the old package:

$ pkg-config --libs --cflags mono
-D_REENTRANT -pthread -I/usr/lib/pkgconfig/../../include/mono-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -pthread -L/usr/lib/pkgconfig/../../lib -lmono -ldl -lpthread -lm -lgthread-2.0 -lrt -lglib-2.0

I think you have to call the new package, which is:
$ pkg-config --libs --cflags mono-2
-D_REENTRANT -I/usr/lib/pkgconfig/../../include/mono-2.0 -L/usr/lib/pkgconfig/../../lib -lmono-2.0 -lm -lrt -ldl -lpthread

But I don't know how cmake makes this.

Okay, I have written to the mono ML. This is a behaviour by design. They have changed the embedded API. Related changes are posted here:
http://www.mono-project.com/Embedding_Mono#Updates_for_Mono_version_2.8.2B

My related post on the ML is here:
http://lists.ximian.com/pipermail/mono-list/2010-October/045895.html

So, if an application uses this embedded API, it must call pkg-config with the new mono-2 configuration. Maybe that's all that must be changed, because the API are more or less identical, only some methods were changed.

i think you need to modify a bit kdebindings-4.5.2/cmake/module/CMakeDetermineCSharpCompiler.cmake

in there is something like:
execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} mono --variable=libdir OUTPUT_VARIABLE MONO_LIB_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)

change mono to mono-2

and yes, cmake sucks

ok this is fixed on trunk:
http://websvn.kde.org/?view=revision&revision=1184234