| |
| enable_language (C) |
| include(CheckCCompilerFlag) |
| |
| set(C 1) # test that this is tolerated |
| |
| if(NOT CMAKE_C_COMPILER_ID STREQUAL "PathScale") |
| set(DD --) |
| endif() |
| |
| check_c_compiler_flag("${DD}-_this_is_not_a_flag_" C_BOGUS_FLAG) |
| if(C_BOGUS_FLAG) |
| message(SEND_ERROR "CHECK_C_COMPILER_FLAG() succeeded, but should have failed") |
| endif() |
| unset(C_BOGUS_FLAG CACHE) |
| if(DEFINED C_BOGUS_FLAG) |
| # Verify that CHECK_C_COMPILER_FLAG didn't construct a normal variable |
| message(SEND_ERROR "CHECK_C_COMPILER_FLAG shouldn't construct C_BOGUS_FLAG as a normal variable") |
| endif() |
| |
| if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "LCC") |
| unset(C_STRICT_PROTOTYPES CACHE) |
| CHECK_C_COMPILER_FLAG("-Werror;-Wstrict-prototypes" C_STRICT_PROTOTYPES) |
| if(NOT C_STRICT_PROTOTYPES) |
| message(SEND_ERROR "CHECK_C_COMPILER_FLAG failed -Werror -Wstrict-prototypes") |
| endif() |
| endif() |
