[CMake] 2.4.7 SetLang test failure on Tru64 UNIX 5.1

[Bill Hoffman]

Albert Chin wrote:
> The SetLang test fails on Tru64 UNIX because the C++ compiler invokes
> the C compiler to build Tests/SetLang/bar.c. The C++ compiler can be
> used if we force it with "-x cxx". How do I do this to get this test
> to pass?
>
>   
You can change the CMAKE_CXX_COMPILE_OBJECT rule variable in the 
platform file
for that machine.   You can see Platforms/QNX.cmake for an example, of 
just that flag:

# force the language to be c++ since qnx only has gcc and not g++ and c++?
SET(CMAKE_CXX_COMPILE_OBJECT
  "<CMAKE_CXX_COMPILER> -x c++ <FLAGS> -o <OBJECT> -c <SOURCE>")


Since you are going to the trouble of getting cmake working, can you set 
up a nightly dashboard
so it stays working?   At one point we had one and it used to work.   As 
you can see we lost
it and now it does not work....  It would involve a cron job that ran 
once a day and ran the
cmake test suite.  I can help you set it up.


-Bill