Trying to install Mono from source on Fedora 7.. running

# ./configure --prefix=/opt/mono

works fine, but doing the make

# make ; make install

ends up with the following:

Makefile:93: warning: overriding commands for target `csproj-local'
../build/executable.make:131: warning: ignoring old commands for target `csproj-local'
make install-local
make[6]: Entering directory `/opt/mono-2.6.4/mcs/mcs'
Makefile:93: warning: overriding commands for target `csproj-local'
../build/executable.make:131: warning: ignoring old commands for target `csproj-local'
MCS     [basic] mcs.exe
typemanager.cs(2047,40): error CS0103: The name `CultureInfo' does not exist in the context of `Mono.CSharp.TypeManager'
Compilation failed: 1 error(s), 0 warnings
make[6]: *** [../class/lib/basic/mcs.exe] Error 1
make[6]: Leaving directory `/opt/mono-2.6.4/mcs/mcs'
make[5]: *** [do-install] Error 2
make[5]: Leaving directory `/opt/mono-2.6.4/mcs/mcs'
make[4]: *** [install-recursive] Error 1
make[4]: Leaving directory `/opt/mono-2.6.4/mcs'
make[3]: *** [profile-do--basic--install] Error 2
make[3]: Leaving directory `/opt/mono-2.6.4/mcs'
make[2]: *** [profiles-do--install] Error 2
make[2]: Leaving directory `/opt/mono-2.6.4/mcs'
make[1]: *** [install-exec] Error 2
make[1]: Leaving directory `/opt/mono-2.6.4/runtime'
make: *** [install-recursive] Error 1

I've been following the instructions at http://ruakuu.blogspot.com/2008/06/installing-and-configuring-opensim-on.html.

This is all in an effort to get OpenSimulator running.