diff options
Diffstat (limited to 'cmake/QtCompilerFlags.cmake')
| -rw-r--r-- | cmake/QtCompilerFlags.cmake | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/cmake/QtCompilerFlags.cmake b/cmake/QtCompilerFlags.cmake index a376ac0097..f58f36b7a2 100644 --- a/cmake/QtCompilerFlags.cmake +++ b/cmake/QtCompilerFlags.cmake @@ -1,16 +1,23 @@ -# Set warnings. All compilers except MSVC support -Wall -Wextra -# Allow opting out by setting a QT_COMPILE_WARNINGS_OFF property on targets. This would be the -# equivalent of qmake's CONFIG += warn_off. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: BSD-3-Clause + +# Enable compiler warnings by default. All compilers except MSVC support -Wall -Wextra +# +# You can disable the warnings for specific targets (for instance containing 3rd party code) +# by calling qt_disable_warnings(target). This will set the QT_COMPILE_OPTIONS_DISABLE_WARNINGS +# property checked below, and is equivalent to qmake's CONFIG += warn_off. set(_qt_compiler_warning_flags_on "") -set(_qt_compiler_warning_flags_off "") +set(_qt_compiler_warning_flags_off -w) if (MSVC) list(APPEND _qt_compiler_warning_flags_on /W3) - list(APPEND _qt_compiler_warning_flags_off -W0) else() - list(APPEND _qt_compiler_warning_flags_on -Wall -Wextra) - list(APPEND _qt_compiler_warning_flags_off -w) + if(CMAKE_CXX_COMPILER_ID STREQUAL "GHS") # There is no -Wextra flag for GHS compiler. + list(APPEND _qt_compiler_warning_flags_on -Wall) + else() + list(APPEND _qt_compiler_warning_flags_on -Wall -Wextra) + endif() endif() set(_qt_compiler_warning_flags_condition @@ -18,8 +25,15 @@ set(_qt_compiler_warning_flags_condition set(_qt_compiler_warning_flags_genex "$<IF:${_qt_compiler_warning_flags_condition},${_qt_compiler_warning_flags_off},${_qt_compiler_warning_flags_on}>") +set(_qt_compiler_warning_flags_language_condition + "$<COMPILE_LANGUAGE:CXX,C,OBJC,OBJCXX>") +set(_qt_compiler_warning_flags_language_conditional_genex + "$<${_qt_compiler_warning_flags_language_condition}:${_qt_compiler_warning_flags_genex}>") + + # Need to replace semicolons so that the list is not wrongly expanded in the add_compile_options # call. string(REPLACE ";" "$<SEMICOLON>" - _qt_compiler_warning_flags_genex "${_qt_compiler_warning_flags_genex}") -add_compile_options(${_qt_compiler_warning_flags_genex}) + _qt_compiler_warning_flags_language_conditional_genex + "${_qt_compiler_warning_flags_language_conditional_genex}") +add_compile_options(${_qt_compiler_warning_flags_language_conditional_genex}) |