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         set(TARGET_NAME ${TARGET_NAME})
  32 endmacro(PROJECT_TARGET_ADD)
  33
  34 macro(defstr name value)
  35         add_definitions(-D${name}=${value})
  36 endmacro(defstr)
  37
  38 macro(setc name value)
  39         if(NOT DEFINED ${name})
  40         set(${name} ${value})
  41         endif(NOT DEFINED ${name})
  42 endmacro(setc)
  43
  44 macro(fill_include_dir path)
  45         file(GLOB_RECURSE dirlist LIST_DIRECTORIES true "${path}/*")
  46         foreach(filename ${dirlist})
  47                 if(IS_DIRECTORY ${filename})
  48                         include_directories(${filename})
  49                 endif(IS_DIRECTORY ${filename})
  50         endforeach()
  51 endmacro(fill_include_dir)
  52
  53 function(find_source_files path)
  54         file(GLOB_RECURSE filelist "${path}/*.[cpx]")
  55         foreach(filename ${filelist})
  56                 if(NOT ${filename} MATCHES ".*(test|example|sample).*")
  57                         string(APPEND sources "${filename};")
  58                 endif(NOT ${filename} MATCHES ".*(test|example|sample).*")
  59         endforeach()
  60         set(sources_files ${sources} PARENT_SCOPE)
  61 endfunction(find_source_files)
  62
  63 CMAKE_MINIMUM_REQUIRED(VERSION 3.3)
  64 setc(CMAKE_BUILD_TYPE Debug)
  65 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
  66 set(CMP0048 1)
  67
  68 # Compiler selection should append before project definition
  69 # -----------------------------------------------------------
  70 foreach (GCC_VERSION "6" "5")
  71         execute_process(COMMAND gcc-${GCC_VERSION} -dumpversion RESULT_VARIABLE GCCRC OUTPUT_QUIET ERROR_QUIET)
  72         if(GCCRC EQUAL 0)
  73                 set(CMAKE_C_COMPILER "gcc-${GCC_VERSION}")
  74                 set(CMAKE_CXX_COMPILER "g++-${GCC_VERSION}")
  75                 set(CMAKE_C_VERSION ${GCC_VERSION})
  76                 break()
  77         endif(GCCRC EQUAL 0)
  78 endforeach(GCC_VERSION)
  79
  80 # Include project configuration
  81 # ------------------------------
  82 include(${CMAKE_CURRENT_SOURCE_DIR}/etc/config.cmake)
  83 project(${NAME} VERSION ${VERSION})
  84 setc(PROJECT_PRETTY_NAME "${PRETTY_NAME}")
  85 setc(PROJECT_DESCRIPTION "${DESCRIPTION}")
  86 setc(PROJECT_WGT_DIR "packaging/wgt")
  87 setc(PROJECT_LIBDIR "libs")
  88 setc(PROJECT_RESOURCES "data")
  89
  90 message(STATUS "")
  91 message(STATUS "Project=${PROJECT_NAME}/${VERSION}[${PRETTY_NAME} ${DESCRIPTION}]")
  92 message(STATUS "")
  93 message(STATUS "gcc/g++ version-${CMAKE_C_VERSION}.x selected")
  94
  95 INCLUDE(FindPkgConfig)
  96 INCLUDE(CheckIncludeFiles)
  97 INCLUDE(CheckLibraryExists)
  98 INCLUDE(GNUInstallDirs)
  99
 100 # Default compilation options
 101 ############################################################################
 102 link_libraries(-Wl,--as-needed -Wl,--gc-sections)
 103 add_compile_options(-Wall -Wextra -Wconversion)
 104 add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
 105 add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
 106 add_compile_options(-Werror=maybe-uninitialized)
 107 add_compile_options(-Werror=implicit-function-declaration)
 108 add_compile_options(-ffunction-sections -fdata-sections)
 109 add_compile_options(-fPIC)
 110 add_compile_options(-g)
 111
 112 setc(CMAKE_C_FLAGS_PROFILING   "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE")
 113 setc(CMAKE_C_FLAGS_DEBUG       "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE")
 114 setc(CMAKE_C_FLAGS_RELEASE     "-O2")
 115 setc(CMAKE_C_FLAGS_CCOV        "-g -O2 --coverage")
 116 setc(CMAKE_INSTALL_PREFIX      "${CMAKE_SOURCE_DIR}/Install")
 117
 118 # (BUG!!!) as PKG_CONFIG_PATH does not work [should be en env variable]
 119 setc(PKG_CONFIG_USE_CMAKE_PREFIX_PATH 1)
 120
 121 # Loop on required package and add options
 122 foreach (PKG_CONFIG ${PKG_REQUIRED_LIST})
 123         PKG_CHECK_MODULES(${PKG_CONFIG} REQUIRED ${PKG_CONFIG})
 124
 125         INCLUDE_DIRECTORIES(${${PKG_CONFIG}_INCLUDE_DIRS})
 126         list (APPEND link_libraries ${${PKG_CONFIG}_LIBRARIES})
 127         add_compile_options (${${PKG_CONFIG}_CFLAGS})
 128 endforeach(PKG_CONFIG)
 129
 130 # Optional LibEfence Malloc debug library
 131 IF(CMAKE_BUILD_TYPE MATCHES DEBUG)
 132 CHECK_LIBRARY_EXISTS(efence malloc "" HAVE_LIBEFENCE)
 133 IF(HAVE_LIBEFENCE)
 134         MESSAGE(STATUS "Linking with ElectricFence for debugging purposes...")
 135         SET(libefence_LIBRARIES "-lefence")
 136         list (APPEND link_libraries libefence_LIBRARIES})
 137 ENDIF(HAVE_LIBEFENCE)
 138 ENDIF(CMAKE_BUILD_TYPE MATCHES DEBUG)
 139
 140 # set default include directories
 141 INCLUDE_DIRECTORIES(${EXTRA_INCLUDE_DIRS})
 142
 143 # If no install dir try to guest some smart default
 144 if(BINDINGS_INSTALL_PREFIX)
 145         set(BINDINGS_INSTALL_DIR ${BINDINGS_INSTALL_PREFIX}/${PROJECT_NAME})
 146 else()
 147         set(BINDINGS_INSTALL_DIR ${CMAKE_INSTALL_FULL_LIBDIR}/${PROJECT_NAME})
 148 endif()
 149
 150 # Default Linkflag
 151 if(NOT BINDINGS_LINK_FLAG)
 152         set(BINDINGS_LINK_FLAG "-Wl,--version-script=${CMAKE_SOURCE_DIR}/etc/export.map")
 153 endif()
 154
 155 # Bindings to compile
 156 # --------------------
 157 file(GLOB filelist "[A-z]*")
 158 foreach(filename ${filelist})
 159 if(EXISTS "${filename}/CMakeLists.txt")
 160         add_subdirectory(${filename})
 161 endif(EXISTS "${filename}/CMakeLists.txt")
 162 endforeach()
 163
 164 # Add a dummy target to enable global dependency order
 165 # -----------------------------------------------------
 166 if(EXTRA_DEPENDENCIES_ORDER)
 167         set(DEPENDENCIES_TARGET ${PROJECT_NAME}_extra_dependencies)
 168         add_custom_target(${DEPENDENCIES_TARGET} ALL
 169                 DEPENDS ${EXTRA_DEPENDENCY_ORDER}
 170         )
 171 endif()
 172
 173 # Cmake does not maintain targets list before 3.7
 174 # -------------------------------------------------
 175 if(${CMAKE_VERSION} VERSION_LESS 3.7)
 176         set(GLOBAL_TARGET_LIST ${PROJECT_TARGETS})
 177 else()
 178         get_property(GLOBAL_TARGET_LIST GLOBAL PROPERTY GlobalTargetList)
 179 endif()
 180
 181 # Print developer helper message when everything is done
 182 # -------------------------------------------------------
 183 if(CLOSING_MESSAGE AND GLOBAL_TARGET_LIST)
 184         add_custom_target(${PROJECT_NAME}_done ALL
 185                 DEPENDS ${DEPENDENCIES_TARGET} ${GLOBAL_TARGET_LIST}
 186                 COMMAND ${CMAKE_COMMAND} -E cmake_echo_color --cyan "++ ${CLOSING_MESSAGE}"
 187         )
 188 endif()