From 2254b72061e08006e94c9a8ea3b9169f3f2cc1e6 Mon Sep 17 00:00:00 2001 From: Brad King Date: Fri, 27 Apr 2018 13:12:01 -0400 Subject: C++ feature checks: Filter out warnings caused by local configuration In some environments the linker produces warnings like warning: directory not found for option warning: object file compiled with -mlong-branch ... These do not affect the availability of C++ features we're checking, so filter them out. Fixes: #17850, #17947 --- Source/Checks/cm_cxx_features.cmake | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Source/Checks/cm_cxx_features.cmake b/Source/Checks/cm_cxx_features.cmake index 2704c40..2a1abba 100644 --- a/Source/Checks/cm_cxx_features.cmake +++ b/Source/Checks/cm_cxx_features.cmake @@ -19,6 +19,9 @@ function(cm_check_cxx_feature name) string(REGEX REPLACE " +0 Warning\\(s\\)" "" check_output "${check_output}") # Filter out warnings caused by user flags. string(REGEX REPLACE "[^\n]*warning:[^\n]*-Winvalid-command-line-argument[^\n]*" "" check_output "${check_output}") + # Filter out warnings caused by local configuration. + string(REGEX REPLACE "[^\n]*warning:[^\n]*directory not found for option[^\n]*" "" check_output "${check_output}") + string(REGEX REPLACE "[^\n]*warning:[^\n]*object file compiled with -mlong-branch which is no longer needed[^\n]*" "" check_output "${check_output}") # If using the feature causes warnings, treat it as broken/unavailable. if(check_output MATCHES "[Ww]arning") set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE) -- cgit v0.12