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| author | Guy Harris <guy@alum.mit.edu> | 2016-01-27 10:27:28 -0800 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2016-01-27 18:27:55 +0000 |
| commit | 8049df7943f7f18562afca128724a193dd78464b (patch) | |
| tree | 0ea877a2589d2b0f872429d98395606d2b2fe966 /cmake | |
| parent | e57bb1919c80a2d1c245d539f6450b9b9defcb68 (diff) | |
| download | wireshark-8049df7943f7f18562afca128724a193dd78464b.tar.gz | |
Get Clang to report errors for unknown linker flags.
Change-Id: Id8e77b6b521acc1ba684823211d6c09d0e5c111c
Reviewed-on: https://code.wireshark.org/review/13566
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/modules/CheckCLinkerFlag.cmake | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/cmake/modules/CheckCLinkerFlag.cmake b/cmake/modules/CheckCLinkerFlag.cmake index f657a9b884..9a9096b7e1 100644 --- a/cmake/modules/CheckCLinkerFlag.cmake +++ b/cmake/modules/CheckCLinkerFlag.cmake @@ -41,6 +41,13 @@ MACRO (CHECK_C_LINKER_FLAG _FLAG _RESULT) # passed a flag it doesn't handle. # set(CMAKE_REQUIRED_LIBRARIES "/WX") + elseif(CMAKE_C_COMPILER_ID MATCHES "Clang") + # + # We'll be running the linker through the compiler driver, so + # we may need to pass -Werror=unknown-warning-option to have it + # fail, rather than just complaining and driving on, if it's + # passed a flag it doesn't handle. + set(CMAKE_REQUIRED_LIBRARIES "-Werror=unknown-warning-option") endif() set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES} ${_FLAG}") message(status "check linker flag - test linker flags: ${_FLAG}") |