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+How to check compatibility between compilers
+============================================
+
+Since the interfaces used in the cpp bridgetest are not changed often
+one can just build the cppobj.uno.dll and the constructors.uno.dll
+(testtools/source/bridgetest) in an 
+old environment and then use them in the new environment. That is the files 
+are copied into the testtools/wntmsciXX.pro folder which corresponds to the 
+new environment.
+
+On Windows this test will typically fail because the tests use the 
+cppu::getCaughtException function, which only works when all libs are build 
+using the same runtime.
+
+This part of the test can switched off. To do this go into the 
+testtools/source/bridgetest folder and call
+dmake compcheck=1
+
+This will add a new compiler define (-DCOMPCHECK) and will be used in the 
+bridgetest.cxx to switch off the code which uses the getCaughtException function.
+However, there is still a test which causes the test component to throw
+and IllegalArgumentException. This still works.