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d66858c8e4
The warning emmitted by GCC for invalid options have been updated to read "command-line option XXX is valid ..." instead of "command line option XXX is valid ...". Update the regex to make it valid with both the old and new warning message. Fixes: #21275
23 lines
695 B
CMake
23 lines
695 B
CMake
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enable_language (C)
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include(CheckCompilerFlag)
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check_compiler_flag(C "-_this_is_not_a_flag_" SHOULD_FAIL)
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if(SHOULD_FAIL)
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message(SEND_ERROR "invalid C compile flag didn't fail.")
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endif()
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if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang" AND NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC")
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check_compiler_flag(C "-x c" SHOULD_WORK)
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if(NOT SHOULD_WORK)
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message(SEND_ERROR "${CMAKE_C_COMPILER_ID} compiler flag '-x c' check failed")
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endif()
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endif()
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
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check_compiler_flag(C "-frtti" SHOULD_FAIL_RTTI)
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if(SHOULD_FAIL_RTTI)
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message(SEND_ERROR "${CMAKE_C_COMPILER_ID} compiler flag '-frtti' check passed but should have failed")
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endif()
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endif()
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