| enable_language (C) |
| include(CheckSourceCompiles) |
| |
| # If CMAKE_REQUIRED_FLAGS is a list, all items but the first are passed as |
| # arguments to 'cmake'. For backwards compatibility, test that this works. |
| # |
| # It would be nice if we could also test that a literal semicolon makes it |
| # through. Unfortunately, that needs different levels of escaping depending on |
| # the generator, because the build rule may or may not be subject to shell |
| # evaluation. |
| set(CMAKE_REQUIRED_FLAGS |
| "-DFUNC=main" |
| "-DCMAKE_PROJECT_INCLUDE=${CMAKE_CURRENT_LIST_DIR}/Extra.cmake") |
| check_source_compiles(C "int FUNC() {return 0;}" SHOULD_BUILD) |
| if(NOT SHOULD_BUILD) |
| message(SEND_ERROR "Test fail for valid C source.") |
| endif() |
