Files
firebase-ios-sdk/cmake/compiler_setup.cmake
T
Gil 49387ec9c5 Fix build under Linux/GCC Windows/MSVC (#3502)
* Avoid unconditionally setting C++ flags

These were already handled via CMAKE_C_FLAGS and CMAKE_CXX_FLAGS and
this breaks when compiling plain C under GCC, which considers unknown
options an error when compiling with -Werror.

* Fix compilation in Linux/GCC and also Windows/MSVC

GCC and MSVC aren't happy about `using Query = testutil::Query;` when
there's already `class Query` in scope.

* Fix objc_class.h in Windows

* Fix warnings that have crept in on Windows
2019-08-05 20:31:01 -07:00

132 lines
3.1 KiB
CMake

# Copyright 2018 Google
#
# 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.
# C++ Compiler setup
include(compiler_id)
# We use C++11
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
if(CMAKE_GENERATOR STREQUAL "Ninja")
set(NINJA ON)
endif()
if(CXX_CLANG OR CXX_GNU)
set(
common_flags
-Wall -Wextra -Werror
# Be super pedantic about format strings
-Wformat
# Avoid use of uninitialized values
-Wuninitialized
-fno-common
# Delete unused things
-Wunused-function -Wunused-value -Wunused-variable
)
set(
cxx_flags
-Wreorder -Werror=reorder
)
set(
c_flags
-Wstrict-prototypes
)
if(CXX_CLANG)
list(
APPEND common_flags
-Wconditional-uninitialized -Werror=return-type -Winfinite-recursion -Wmove
-Wrange-loop-analysis -Wunreachable-code
# Options added to match apple recommended project settings
-Wcomma
)
endif()
if(NINJA)
# If building under Ninja, disable tty detection and force color output
if(CXX_CLANG OR CXX_GNU)
list(APPEND common_flags -fdiagnostics-color)
endif()
endif()
endif()
if(APPLE)
# CMake has no special support for Objective-C as a distinct language but
# enabling modules and other clang extensions would apply even to regular C++
# sources which is nonportable. Keep these flags separate to avoid misuse.
set(
OBJC_FLAGS
-Werror=deprecated-objc-isa-usage
-Werror=non-modular-include-in-framework-module
-Werror=objc-root-class
-Wblock-capture-autoreleasing
-Wimplicit-atomic-properties
-Wnon-modular-include-in-framework-module
-fobjc-arc
-fmodules
-fno-autolink
-F${FIREBASE_INSTALL_DIR}/Frameworks
)
endif()
if(MSVC)
set(
common_flags
# Cut down on symbol cruft in windows.h
/DWIN32_LEAN_AND_MEAN=1
/DNOMINMAX=1
# Specify at least Windows Vista/Server 2008 (required by gRPC)
/D_WIN32_WINNT=0x600
# Disable warnings that can't be easily addressed or are ignored by
# upstream projects.
# unary minus operator applied to unsigned type, result still unsigned
/wd4146
# character cannot be represented in the current code page
/wd4566
)
endif()
foreach(flag ${common_flags} ${c_flags})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
endforeach()
foreach(flag ${common_flags} ${cxx_flags})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
endforeach()
foreach(flag ${common_flags} ${c_flags})
list(APPEND FIREBASE_C_FLAGS ${flag})
endforeach()
foreach(flag ${common_flags} ${cxx_flags})
list(APPEND FIREBASE_CXX_FLAGS ${flag})
endforeach()