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#

# Copyright (C) 2018 by George Cave - gcave@stablecoder.ca

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may not

# use this file except in compliance with the License. You may obtain a copy of

# the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations under

# the License.

option(ENABLE_ALL_WARNINGS "Compile with all warnings for the major compilers"

OFF)

option(ENABLE_EFFECTIVE_CXX "Enable Effective C++ warnings" OFF)

option(GENERATE_DEPENDENCY_DATA "Generates .d files with header dependencies"

OFF)

if(ENABLE_ALL_WARNINGS)

if(CMAKE_C_COMPILER_ID MATCHES "GNU"

OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"

OR CMAKE_C_COMPILER_ID MATCHES "(Apple)?[Cc]lang"

OR CMAKE_CXX_COMPILER_ID MATCHES "(Apple)?[Cc]lang")

# GCC/Clang

add_compile_options(-Wall -Wextra)

elseif(MSVC)

# MSVC

add_compile_options(/W4)

endif()

endif()

if(ENABLE_EFFECTIVE_CXX)

if(CMAKE_C_COMPILER_ID MATCHES "GNU"

OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"

OR CMAKE_C_COMPILER_ID MATCHES "(Apple)?[Cc]lang"

OR CMAKE_CXX_COMPILER_ID MATCHES "(Apple)?[Cc]lang")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Weffc++")

endif()

endif()

if(GENERATE_DEPENDENCY_DATA)

if(CMAKE_C_COMPILER_ID MATCHES "GNU"

OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"

OR CMAKE_C_COMPILER_ID MATCHES "(Apple)?[Cc]lang"

OR CMAKE_CXX_COMPILER_ID MATCHES "(Apple)?[Cc]lang")

add_compile_options(-MD)

else()

message(

WARNING "Cannot generate header dependency on non GCC/Clang compilers.")

endif()

endif()