CMakeLists.txt

   1 ###########################################################################
   2 # Copyright 2015, 2016, 2017 IoT.bzh
   3 #
   4 # author: Fulup Ar Foll <fulup@iot.bzh>
   5 #
   6 # Licensed under the Apache License, Version 2.0 (the "License");
   7 # you may not use this file except in compliance with the License.
   8 # You may obtain a copy of the License at
   9 #
  10 #     http://www.apache.org/licenses/LICENSE-2.0
  11 #
  12 # Unless required by applicable law or agreed to in writing, software
  13 # distributed under the License is distributed on an "AS IS" BASIS,
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 # See the License for the specific language governing permissions and
  16 # limitations under the License.
  17 ###########################################################################
  18
  19
  20 #--------------------------------------------------------------------------
  21 #  WARNING:
  22 #     Do not change this cmake template
  23 #     Customise your preferences in "./etc/config.cmake"
  24 #--------------------------------------------------------------------------
  25
  26
  27 # Generic useful macro
  28 # -----------------------
  29 macro(PROJECT_TARGET_ADD TARGET_NAME)
  30         set(PROJECT_TARGETS ${PROJECT_TARGETS} ${TARGET_NAME} CACHE INTERNAL PROJECT_TARGETS)
  31 endmacro(PROJECT_TARGET_ADD)
  32
  33 macro(defstr name value)
  34         add_definitions(-D${name}=${value})
  35 endmacro(defstr)
  36
  37 macro(setc name value)
  38         if(NOT DEFINED ${name})
  39         set(${name} ${value})
  40         endif(NOT DEFINED ${name})
  41 endmacro(setc)
  42
  43 macro(fill_include_dir path)
  44         file(GLOB_RECURSE dirlist LIST_DIRECTORIES true "${path}/*")
  45         foreach(filename ${dirlist})
  46                 if(IS_DIRECTORY ${filename})
  47                         include_directories(${filename})
  48                 endif(IS_DIRECTORY ${filename})
  49         endforeach()
  50 endmacro(fill_include_dir)
  51
  52 function(find_source_files path)
  53         file(GLOB_RECURSE filelist "${path}/*.[cpx]")
  54         foreach(filename ${filelist})
  55                 if(NOT ${filename} MATCHES ".*(test|example|sample).*")
  56                         string(APPEND sources "${filename};")
  57                 endif(NOT ${filename} MATCHES ".*(test|example|sample).*")
  58         endforeach()
  59         set(sources_files ${sources} PARENT_SCOPE)
  60 endfunction(find_source_files)
  61
  62 CMAKE_MINIMUM_REQUIRED(VERSION 3.3)
  63 setc(CMAKE_BUILD_TYPE Debug)
  64 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
  65 set(CMP0048 1)
  66
  67 # Compiler selection should append before project definition
  68 # -----------------------------------------------------------
  69 foreach (GCC_VERSION "6" "5")
  70         execute_process(COMMAND gcc-${GCC_VERSION} -dumpversion RESULT_VARIABLE GCCRC OUTPUT_QUIET ERROR_QUIET)
  71         if(GCCRC EQUAL 0)
  72                 set(CMAKE_C_COMPILER "gcc-${GCC_VERSION}")
  73                 set(CMAKE_CXX_COMPILER "g++-${GCC_VERSION}")
  74                 set(CMAKE_C_VERSION ${GCC_VERSION})
  75                 break()
  76         endif(GCCRC EQUAL 0)
  77 endforeach(GCC_VERSION)
  78
  79 # Include project configuration
  80 # ------------------------------
  81 include(${CMAKE_CURRENT_SOURCE_DIR}/etc/config.cmake)
  82 project(${NAME} VERSION ${VERSION})
  83 setc(PROJECT_PRETTY_NAME "${PRETTY_NAME}")
  84 setc(PROJECT_DESCRIPTION "${DESCRIPTION}")
  85 setc(PROJECT_WGT_DIR "packaging/wgt")
  86 setc(PROJECT_LIBDIR "libs")
  87 setc(PROJECT_RESOURCES "data")
  88
  89 message(STATUS "")
  90 message(STATUS "Project=${PROJECT_NAME}/${VERSION}[${PRETTY_NAME} ${DESCRIPTION}]")
  91 message(STATUS "")
  92 message(STATUS "gcc/g++ version-${CMAKE_C_VERSION}.x selected")
  93
  94 INCLUDE(FindPkgConfig)
  95 INCLUDE(CheckIncludeFiles)
  96 INCLUDE(CheckLibraryExists)
  97 INCLUDE(GNUInstallDirs)
  98
  99 # Default compilation options
 100 ############################################################################
 101 link_libraries(-Wl,--as-needed -Wl,--gc-sections)
 102 add_compile_options(-Wall -Wextra -Wconversion)
 103 add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
 104 add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
 105 add_compile_options(-Werror=maybe-uninitialized)
 106 add_compile_options(-Werror=implicit-function-declaration)
 107 add_compile_options(-ffunction-sections -fdata-sections)
 108 add_compile_options(-fPIC)
 109 add_compile_options(-g)
 110
 111 setc(CMAKE_C_FLAGS_PROFILING   "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE")
 112 setc(CMAKE_C_FLAGS_DEBUG       "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE")
 113 setc(CMAKE_C_FLAGS_RELEASE     "-O2")
 114 setc(CMAKE_C_FLAGS_CCOV        "-g -O2 --coverage")
 115 setc(CMAKE_INSTALL_PREFIX      "${CMAKE_SOURCE_DIR}/Install")
 116
 117 # (BUG!!!) as PKG_CONFIG_PATH does not work [should be en env variable]
 118 setc(PKG_CONFIG_USE_CMAKE_PREFIX_PATH 1)
 119
 120 # Loop on required package and add options
 121 foreach (PKG_CONFIG ${PKG_REQUIRED_LIST})
 122         PKG_CHECK_MODULES(${PKG_CONFIG} REQUIRED ${PKG_CONFIG})
 123
 124         INCLUDE_DIRECTORIES(${${PKG_CONFIG}_INCLUDE_DIRS})
 125         list (APPEND link_libraries ${${PKG_CONFIG}_LIBRARIES})
 126         add_compile_options (${${PKG_CONFIG}_CFLAGS})
 127 endforeach(PKG_CONFIG)
 128
 129 # Optional LibEfence Malloc debug library
 130 IF(CMAKE_BUILD_TYPE MATCHES DEBUG)
 131 CHECK_LIBRARY_EXISTS(efence malloc "" HAVE_LIBEFENCE)
 132 IF(HAVE_LIBEFENCE)
 133         MESSAGE(STATUS "Linking with ElectricFence for debugging purposes...")
 134         SET(libefence_LIBRARIES "-lefence")
 135         list (APPEND link_libraries libefence_LIBRARIES})
 136 ENDIF(HAVE_LIBEFENCE)
 137 ENDIF(CMAKE_BUILD_TYPE MATCHES DEBUG)
 138
 139 # set default include directories
 140 INCLUDE_DIRECTORIES(${EXTRA_INCLUDE_DIRS})
 141
 142 # If no install dir try to guest some smart default
 143 if(BINDINGS_INSTALL_PREFIX)
 144         set(BINDINGS_INSTALL_DIR ${BINDINGS_INSTALL_PREFIX}/${PROJECT_NAME})
 145 else()
 146         set(BINDINGS_INSTALL_DIR ${CMAKE_INSTALL_FULL_LIBDIR}/${PROJECT_NAME})
 147 endif()
 148
 149 # Default Linkflag
 150 if(NOT BINDINGS_LINK_FLAG)
 151         set(BINDINGS_LINK_FLAG "-Wl,--version-script=${CMAKE_SOURCE_DIR}/etc/export.map")
 152 endif()
 153
 154 # Bindings to compile
 155 # --------------------
 156 file(GLOB filelist "[A-z]*")
 157 foreach(filename ${filelist})
 158 if(EXISTS "${filename}/CMakeLists.txt")
 159         add_subdirectory(${filename})
 160 endif(EXISTS "${filename}/CMakeLists.txt")
 161 endforeach()
 162
 163 # Add a dummy target to enable global dependency order
 164 # -----------------------------------------------------
 165 if(EXTRA_DEPENDENCIES_ORDER)
 166         set(DEPENDENCIES_TARGET ${PROJECT_NAME}_extra_dependencies)
 167         add_custom_target(${DEPENDENCIES_TARGET} ALL
 168                 DEPENDS ${EXTRA_DEPENDENCY_ORDER}
 169         )
 170 endif()
 171
 172 # Cmake does not maintain targets list before 3.7
 173 # -------------------------------------------------
 174 if(${CMAKE_VERSION} VERSION_LESS 3.7)
 175         set(GLOBAL_TARGET_LIST ${PROJECT_TARGETS})
 176 else()
 177         get_property(GLOBAL_TARGET_LIST GLOBAL PROPERTY GlobalTargetList)
 178 endif()
 179
 180 # Print developer helper message when everything is done
 181 # -------------------------------------------------------
 182 if(CLOSING_MESSAGE AND GLOBAL_TARGET_LIST)
 183         add_custom_target(${PROJECT_NAME}_done ALL
 184                 DEPENDS ${DEPENDENCIES_TARGET} ${GLOBAL_TARGET_LIST}
 185                 COMMAND ${CMAKE_COMMAND} -E cmake_echo_color --cyan "++ ${CLOSING_MESSAGE}"
 186         )
 187 endif()