From bbd3f90a8da990ff9a38761a0b5c2f467abdd84e Mon Sep 17 00:00:00 2001 From: Ralf Habacker Date: Thu, 7 Apr 2022 13:53:42 +0200 Subject: [PATCH] cmake: Fix not detecting unsupported g++ related warning checks Unsupported warnings are detected by cmake through errors during compilation, which causes g++ not to detect them, since they are only output as warnings. Setting -Werror ensures this. Signed-off-by: Ralf Habacker --- cmake/modules/Macros.cmake | 2 ++ 1 file changed, 2 insertions(+) diff --git a/cmake/modules/Macros.cmake b/cmake/modules/Macros.cmake index 8d021d372..04ee287d3 100644 --- a/cmake/modules/Macros.cmake +++ b/cmake/modules/Macros.cmake @@ -124,6 +124,8 @@ include(CheckCCompilerFlag) include(CheckCXXCompilerFlag) function(check_compiler_warning_flag _flag _result _cxx) string(MAKE_C_IDENTIFIER "${_flag}" _varname) + # required to get errors + list(APPEND _flag -Werror) if (_cxx) check_cxx_compiler_flag("${_flag}" HAVE_CXX_FLAG${_varname}) set(${_result} ${HAVE_CXX_FLAG${_varname}} PARENT_SCOPE) -- 2.47.3