Smuxi Issues [FROZEN ARCHIVE]

When building Smuxi 0.7.1 on Mono 2.6 it fails with:

    Target CoreCompile:
        Tool /usr/local/bin/gmcs execution started with arguments: /noconfig /debug:full /delaysign- /debug+ /keyfile:Twitterizer.Framework.snk /optimize- /out:/usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/bin/debug/obj/Debug/Twitterizer.Framework.dll InvalidTwitterParameterException.cs Method_Classes/TwitterDirectMessageMethods.cs Properties/AssemblyInfo.cs Twitter.cs TwitterizerException.cs Data_Transfer_Objects/TwitterParameters.cs TwitterRequest.cs Data_Transfer_Objects/TwitterRequestData.cs Data_Transfer_Objects/TwitterStatus.cs Data_Transfer_Objects/TwitterStatusCollection.cs Method_Classes/TwitterStatusMethods.cs Data_Transfer_Objects/TwitterUser.cs Data_Transfer_Objects/TwitterUserCollection.cs Method_Classes/TwitterUserMethods.cs /target:library /define:DEBUG;TRACE /nowarn:CS0168 /reference:/usr/local/lib/mono/2.0/System.dll /reference:/usr/local/lib/mono/2.0/System.Data.dll /reference:/usr/local/lib/mono/2.0/System.Web.dll /reference:/usr/local/lib/mono/2.0/System.Xml.dll /reference:/usr/local/lib/mono/2.0/System.Configuration.dll /warn:4
: error CS1904:  `CS0168' is not a valid warning number
    Task "Csc" execution -- FAILED
    Done building target "CoreCompile" in project "/usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/lib/Twitterizer.Framework/Twitterizer.Framework.vs2008.csproj".-- FAILED

    Target _GetCompileOutputsForClean:

    Target _RecordCleanFile:

Done building project "/usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/lib/Twitterizer.Framework/Twitterizer.Framework.vs2008.csproj".-- FAILED

Build FAILED.
Errors:

/usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/lib/Twitterizer.Framework/Twitterizer.Framework.vs2008.csproj (default targets) ->
(CoreCompile target) ->

    : error CS1904:  `CS0168' is not a valid warning number

     0 Warning(s)
     1 Error(s)

Time Elapsed 00:00:03.4376260
gmake[2]: *** [../../bin/debug/Twitterizer.Framework.dll] Erreur 1
gmake[2]: quittant le répertoire « /usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/lib/Twitterizer.Framework »
gmake[1]: *** [all-recursive] Erreur 1
gmake[1]: quittant le répertoire « /usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi/work/smuxi-0.7.1/lib »
gmake: *** [all-recursive] Erreur 1
*** Error code 1

Stop in /usr/home/romain/Projects/bsd-sharp/trunk/irc/smuxi.

--- lib/Twitterizer.Framework/Makefile.in.orig
+++ lib/Twitterizer.Framework/Makefile.in
@@ -238,7 +238,7 @@
 ASSEMBLY_TARGET = $(OUTPUT_DIR)/$(ASSEMBLY_NAME)
 KEY_FILE = $(srcdir)/Twitterizer.Framework.snk
 BUILD_FILE = $(srcdir)/Twitterizer.Framework.vs2008.csproj
-XBUILD_FLAGS = /p:Configuration=Debug /p:NoWarn=CS0168 /p:OutputPath=$(abspath $(OUTPUT_DIR)) /p:BaseIntermediateOutputPath=$(abspath $(OBJECT_DIR))/
+XBUILD_FLAGS = /p:Configuration=Debug /p:NoWarn=0168 /p:OutputPath=$(abspath $(OUTPUT_DIR)) /p:BaseIntermediateOutputPath=$(abspath $(OBJECT_DIR))/

 # magic automake variables
 @ENABLE_ENGINE_TWITTER_TRUE@pkglib_DATA = $(ASSEMBLY_TARGET) $(ASSEMBLY_TARGET).mdb