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polybar/cmake/01-core.cmake
sam-lunt d3e37918e5 CMake refactor (#1510)
* Clean up CMake logic

- removed logic to find CppUnit (no longer used)
- removed "dirs" variable used to pass include directories
- removed add_library function (no longer used)
- removed make_executable function
    * only used in 2 places (polybar and polybar-msg)
    * it was more general than needed, logic is simpler without it
- split polybar into static library and executable
    * this allows linking unit tests to the library

* rename library

* add coverage build

- Added a CMake build type "Coverage" that builds C and C++
  code with the "--coverage" flag (recognized by both GCC and Clang)
- removed "-Wno-missing-field-initializers" from test flags,
  since it didn't seem to be needed any more
- removed logic from tests/CMakeLists to disable "-Werror" and "-pedantic-errors"
  since there didn't seem to be any warnings during the build

* fix whitespace

* update travis

* remove O2 from defalt flags

* allow tests to be built by default make target

* disable Werror for debug builds
2018-11-21 18:46:33 +01:00

120 lines
4.7 KiB
CMake

#
# Core setup
#
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(THREADS_PREFER_PTHREAD_FLAG ON)
# Export compile commands used for custom targets
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Set default build type if not specified
if(NOT CMAKE_BUILD_TYPE)
message_colored(STATUS "No build type specified; using RelWithDebInfo" 33)
set(CMAKE_BUILD_TYPE "RelWithDebInfo")
endif()
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_UPPER)
# Compiler flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
# there's no way to modify the code to avoid this warning, so we must
# suppress it if we use -Werror
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-noexcept-type")
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic-errors")
if (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
# Need dprintf() for FreeBSD 11.1 and older
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_WITH_DPRINTF")
# libinotify uses c99 extension, so suppress this error
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-c99-extensions")
# Ensures that libraries from dependencies in LOCALBASE are used
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L/usr/local/lib")
endif()
if(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error=parentheses-equality")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-zero-length-array")
endif()
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wno-error")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g2")
if(${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -fdata-sections -ffunction-sections")
set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} -Wl,--gc-sections,--icf=safe")
endif()
# Check compiler
if(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.4.0")
message_colored(FATAL_ERROR "Compiler not supported (Requires clang-3.4+ or gcc-5.1+)" 31)
else()
message_colored(STATUS "Using supported compiler ${CMAKE_CXX_COMPILER_ID}-${CMAKE_CXX_COMPILER_VERSION}" 32)
endif()
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.1.0")
message_colored(FATAL_ERROR "Compiler not supported (Requires clang-3.4+ or gcc-5.1+)" 31)
else()
message_colored(STATUS "Using supported compiler ${CMAKE_CXX_COMPILER_ID}-${CMAKE_CXX_COMPILER_VERSION}" 32)
endif()
else()
message_colored(WARNING "Using unsupported compiler ${CMAKE_CXX_COMPILER_ID}-${CMAKE_CXX_COMPILER_VERSION} !" 31)
endif()
# Set compiler and linker flags for preferred C++ library
if(CXXLIB_CLANG)
message_colored(STATUS "Linking against libc++" 32)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lc++ -lc++abi")
elseif(CXXLIB_GCC)
message_colored(STATUS "Linking against libstdc++" 32)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lstdc++")
endif()
# Install paths
if(NOT DEFINED CMAKE_INSTALL_BINDIR)
set(CMAKE_INSTALL_BINDIR bin)
endif()
if(NOT DEFINED CMAKE_INSTALL_SBINDIR)
set(CMAKE_INSTALL_SBINDIR sbin)
endif()
if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
set(CMAKE_INSTALL_LIBDIR lib)
endif()
if(NOT DEFINED CMAKE_INSTALL_INCLUDEDIR)
set(CMAKE_INSTALL_INCLUDEDIR include)
endif()
# Custom build type ; SANITIZE
SET(CMAKE_CXX_FLAGS_SANITIZE "-O1 -g -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls"
CACHE STRING "Flags used by the C++ compiler during sanitize builds." FORCE)
SET(CMAKE_C_FLAGS_SANITIZE ""
CACHE STRING "Flags used by the C compiler during sanitize builds." FORCE)
SET(CMAKE_EXE_LINKER_FLAGS_SANITIZE ""
CACHE STRING "Flags used for linking binaries during sanitize builds." FORCE)
SET(CMAKE_SHARED_LINKER_FLAGS_SANITIZE ""
CACHE STRING "Flags used by the shared libraries linker during sanitize builds." FORCE)
MARK_AS_ADVANCED(
CMAKE_CXX_FLAGS_SANITIZE
CMAKE_C_FLAGS_SANITIZE
CMAKE_EXE_LINKER_FLAGS_SANITIZE
CMAKE_SHARED_LINKER_FLAGS_SANITIZE)
# Custom build type ; Coverage
SET(CMAKE_CXX_FLAGS_COVERAGE
"${CMAKE_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_COVERAGE} --coverage")
SET(CMAKE_C_FLAGS_COVERAGE
"${CMAKE_C_FLAGS_DEBUG} ${CMAKE_C_FLAGS_COVERAGE} --coverage")
SET(CMAKE_EXE_LINKER_FLAGS_COVERAGE
"${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${CMAKE_EXE_LINKER_FLAGS_COVERAGE}")
SET(CMAKE_SHARED_LINKER_FLAGS_COVERAGE
"${CMAKE_SHARED_LINKER_FLAGS_DEBUG} ${CMAKE_SHARED_LINKER_FLAGS_COVERAGE}")