# Copyright 2020 The Pigweed Authors # # 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 # # https://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. # IMPORTANT: The compilation flags in this file must be kept in sync with # the GN flags //pw_build/BUILD.gn. # Target that specifies the standard Pigweed build options. add_library(pw_build INTERFACE) target_compile_options(pw_build INTERFACE "-g") target_link_libraries(pw_build INTERFACE pw_build.reduced_size pw_build.cpp17 ) target_compile_options(pw_build INTERFACE # Force the compiler use colorized output. This is required for Ninja. $<$:-fcolor-diagnostics> $<$:-fdiagnostics-color=always> ) # Declare top-level targets for tests. add_custom_target(pw_tests.default) add_custom_target(pw_run_tests.default) add_custom_target(pw_tests DEPENDS pw_tests.default) add_custom_target(pw_run_tests DEPENDS pw_run_tests.default) # Define the standard Pigweed compile options. add_library(pw_build.reduced_size INTERFACE) target_compile_options(pw_build.reduced_size INTERFACE "-fno-common" "-fno-exceptions" "-ffunction-sections" "-fdata-sections" $<$:-fno-rtti> ) add_library(pw_build.strict_warnings INTERFACE) target_compile_options(pw_build.strict_warnings INTERFACE "-Wall" "-Wextra" "-Wimplicit-fallthrough" "-Wcast-qual" "-Wundef" "-Wpointer-arith" # Make all warnings errors, except for the exemptions below. "-Werror" "-Wno-error=cpp" # preprocessor #warning statement "-Wno-error=deprecated-declarations" # [[deprecated]] attribute $<$:-Wnon-virtual-dtor> ) add_library(pw_build.extra_strict_warnings INTERFACE) target_compile_options(pw_build.extra_strict_warnings INTERFACE "-Wshadow" "-Wredundant-decls" $<$:-Wstrict-prototypes> ) add_library(pw_build.cpp17 INTERFACE) target_compile_options(pw_build.cpp17 INTERFACE $<$:-std=c++17> # Allow uses of the register keyword, which may appear in C headers. $<$:-Wno-register> ) # Create an empty source file and library for general use. file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/empty_file.c" "") add_library(pw_build.empty OBJECT "${CMAKE_CURRENT_BINARY_DIR}/empty_file.c" "")