Files
firebase-ios-sdk/cmake/compiler_setup.cmake
T
Gil d4e86ba091 Fixes for compatibility with builds in firebase-cpp-sdk (#4984)
* Don't modify CMAKE_CXX_FLAGS

* Avoid conflict on RANDOM_FILE

* Only conditionally build tests

* Remove alias provided by the upstream build

* Set SOURCE_DIR and BINARY_DIR for each external library

* Compute repo root without git

This supports building Firestore from a source archive

* Make empty files C++

This makes it possible to compile with a single set of flags for every
cc_library.
2020-02-26 17:54:13 -08:00

126 lines
3.0 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
# TODO(wilhuff): re-enable -Wcomma once Abseil fixes the definition of
# ABSL_ASSERT upstream
-Wno-comma
)
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})
list(APPEND FIREBASE_C_FLAGS ${flag})
endforeach()
foreach(flag ${common_flags} ${cxx_flags})
list(APPEND FIREBASE_CXX_FLAGS ${flag})
endforeach()