Recursive include cmake file systemn home, project

[apps/app-templates.git] / cmake / cmake.d / 04-build_options.cmake

diff --git a/cmake/cmake.d/04-build_options.cmake b/cmake/cmake.d/04-build_options.cmake
new file mode 100644 (file)
index 0000000..3a1fc81
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+++ b/cmake/cmake.d/04-build_options.cmake
@@ -0,0 +1,121 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 IoT.bzh
+#
+# author: Fulup Ar Foll <fulup@iot.bzh>
+# contrib: Romain Forlot <romain.forlot@iot.bzh>
+#
+# 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.
+###########################################################################
+
+
+#--------------------------------------------------------------------------
+#  WARNING:
+#     Do not change this cmake template
+#     Customise your preferences in "./etc/config.cmake"
+#--------------------------------------------------------------------------
+
+# Check GCC minimal version
+if (gcc_minimal_version)
+               message (STATUS "${Cyan}-- Check gcc_minimal_version (found gcc version ${CMAKE_C_COMPILER_VERSION}) \
+               (found g++ version ${CMAKE_CXX_COMPILER_VERSION})${ColourReset}")
+       if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version} OR CMAKE_C_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version})
+               message(FATAL_ERROR "${Red}**** FATAL: Require at least gcc-${gcc_minimal_version} please set CMAKE_C[XX]_COMPILER")
+       endif()
+endif(gcc_minimal_version)
+
+# Check Kernel minimal version
+if (kernel_minimal_version)
+       if(DEFINED ENV{SDKTARGETSYSROOT})
+               file(STRINGS $ENV{SDKTARGETSYSROOT}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
+       else()
+               file(STRINGS /usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
+       endif()
+
+       string(REGEX MATCH "[0-9]+" LINUX_VERSION_CODE ${LINUX_VERSION_CODE_LINE})
+       math(EXPR a "${LINUX_VERSION_CODE} >> 16")
+       math(EXPR b "(${LINUX_VERSION_CODE} >> 8) & 255")
+       math(EXPR c "(${LINUX_VERSION_CODE} & 255)")
+
+       set(KERNEL_VERSION "${a}.${b}.${c}")
+       message (STATUS "${Cyan}-- Check kernel_minimal_version (found kernel version ${KERNEL_VERSION})${ColourReset}")
+
+       if (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
+               message(FATAL_ERROR "${Red}**** FATAL: Require at least ${kernel_minimal_version} please use a recent kernel or source your SDK environment then clean and reconfigure your CMake project.")
+       endif (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
+endif(kernel_minimal_version)
+
+INCLUDE(FindPkgConfig)
+INCLUDE(CheckIncludeFiles)
+INCLUDE(CheckLibraryExists)
+INCLUDE(GNUInstallDirs)
+
+# Default compilation options
+############################################################################
+link_libraries(-Wl,--as-needed -Wl,--gc-sections)
+add_compile_options(-Wall -Wextra -Wconversion)
+add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
+add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
+add_compile_options(-Werror=maybe-uninitialized)
+add_compile_options(-Werror=implicit-function-declaration)
+add_compile_options(-ffunction-sections -fdata-sections)
+add_compile_options(-fPIC)
+add_compile_options(-g)
+
+set(CMAKE_C_FLAGS_PROFILING   "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for profiling")
+set(CMAKE_C_FLAGS_DEBUG       "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for debugging")
+set(CMAKE_C_FLAGS_RELEASE     "-O2" CACHE STRING "Flags for releasing")
+set(CMAKE_C_FLAGS_CCOV        "-g -O2 --coverage" CACHE STRING "Flags for coverage test")
+
+set(CMAKE_CXX_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
+set(CMAKE_CXX_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
+set(CMAKE_CXX_FLAGS_RELEASE      "-g -O2")
+set(CMAKE_CXX_FLAGS_CCOV "-g -O2 --coverage")
+
+# Env variable overload default
+if(DEFINED ENV{INSTALL_PREFIX})
+       set (INSTALL_PREFIX $ENV{INSTALL_PREFIX})
+else()
+       set(INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/Install" CACHE PATH "The path where to install")
+endif()
+set(CMAKE_INSTALL_PREFIX ${INSTALL_PREFIX} CACHE STRING "Installation Prefix")
+
+# (BUG!!!) as PKG_CONFIG_PATH does not work [should be en env variable]
+set(PKG_CONFIG_USE_CMAKE_PREFIX_PATH ON CACHE BOOLEAN "Flag for using prefix path")
+
+# Loop on required package and add options
+foreach (PKG_CONFIG ${PKG_REQUIRED_LIST})
+       string(REGEX REPLACE "[<>]?=.*$" "" XPREFIX ${PKG_CONFIG})
+       PKG_CHECK_MODULES(${XPREFIX} REQUIRED ${PKG_CONFIG})
+
+       INCLUDE_DIRECTORIES(${${XPREFIX}_INCLUDE_DIRS})
+       list (APPEND link_libraries ${${XPREFIX}_LDFLAGS})
+       add_compile_options (${${XPREFIX}_CFLAGS})
+endforeach(PKG_CONFIG)
+
+# Optional LibEfence Malloc debug library
+IF(CMAKE_BUILD_TYPE MATCHES DEBUG)
+CHECK_LIBRARY_EXISTS(efence malloc "" HAVE_LIBEFENCE)
+IF(HAVE_LIBEFENCE)
+       MESSAGE(STATUS "Linking with ElectricFence for debugging purposes...")
+       SET(libefence_LIBRARIES "-lefence")
+       list (APPEND link_libraries ${libefence_LIBRARIES})
+ENDIF(HAVE_LIBEFENCE)
+ENDIF(CMAKE_BUILD_TYPE MATCHES DEBUG)
+
+# set default include directories
+INCLUDE_DIRECTORIES(${EXTRA_INCLUDE_DIRS})
+
+# Default Linkflag
+if(NOT BINDINGS_LINK_FLAG)
+       set(BINDINGS_LINK_FLAG "-Wl,--version-script=${PKG_TEMPLATE_PREFIX}/cmake/export.map")
+endif()