[Cmake] How to force linking with C++ compiler given C code?

[Andy Cedilnik]

Hi Doug,

Try the following:

echo "" > foo.cxx

and then change
ADD_EXECUTABLE(hello_prog main.c foo.cxx)

I think that is the only way for now. Can you add a bug to the bug
tracker?

				Andy

On Thu, 2003-12-18 at 13:25, Douglas Gregor wrote:
> Greetings,
> 	I'm trying to link an executable (compiled entirely from C sources) to a C++ 
> library using CMake under Linux. When the library is a shared library, there 
> are no problems (of course). When trying to link statically, the generated 
> makefile uses "gcc" instead of "g++", causing undefined symbols when 
> referring to, e.g., std::cout.
> 	Here's one way to reproduce the problem (CMake 1.8.1, GCC 3.2.3, glibc 
> 2.3.2):
> 
> ------------CMakeLists.txt is:
> ADD_LIBRARY(hello_library hello.cpp)
> ADD_EXECUTABLE(hello_prog main.c)
> TARGET_LINK_LIBRARIES(hello_prog hello_library)
> 
> ------------hello.cpp is:
> #include <iostream>
> extern "C" {
>   void hello() { std::cout << "Hello, World!" << std::endl; }
> }
> 
> ------------main.c is:
> void hello();
> 
> int main()
> {
>   hello();
>   return 0;
> }
> 
> 	Is there any way to request that hello_prog be linked as if it were C++ code?	
> 
> 	Thanks,
> 	Doug
> 
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