55ee53ce91
Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the application and test build scripts. Modern versions of CMake will spam users with a deprecation warning when the toplevel CMakeLists.txt does not specify a CMake version. This is documented in bug #8355. To resolve this we include a cmake_minimum_required() line into the toplevel build scripts. Additionally, cmake_minimum_required is invoked from within boilerplate.cmake. The highest version will be enforced. This patch allows us to afterwards change CMake policy CMP000 from OLD to NEW which in turn finally rids us of the verbose warning. The extra boilerplate is considered more acceptable than the verbosity of the CMP0000 policy. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
60 lines
2.3 KiB
CMake
60 lines
2.3 KiB
CMake
cmake_minimum_required(VERSION 3.8.2)
|
|
include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
|
|
project(NONE)
|
|
|
|
target_sources(app PRIVATE src/main.c)
|
|
|
|
# The external static library that we are linking with does not know
|
|
# how to build for this platform so we export all the flags used in
|
|
# this zephyr build to the external build system.
|
|
#
|
|
# Other external build systems may be self-contained enough that they
|
|
# do not need any build information from zephyr. Or they may be
|
|
# incompatible with certain zephyr options and need them to be
|
|
# filtered out.
|
|
zephyr_get_include_directories_for_lang_as_string( C includes)
|
|
zephyr_get_system_include_directories_for_lang_as_string(C system_includes)
|
|
zephyr_get_compile_definitions_for_lang_as_string( C definitions)
|
|
zephyr_get_compile_options_for_lang_as_string( C options)
|
|
|
|
set(external_project_cflags
|
|
"${includes} ${definitions} ${options} ${system_includes}"
|
|
)
|
|
|
|
include(ExternalProject)
|
|
|
|
# Add an external project to be able download and build the third
|
|
# party library. In this case downloading is not necessary as it has
|
|
# been committed to the repository.
|
|
set(mylib_src_dir ${CMAKE_CURRENT_SOURCE_DIR}/mylib)
|
|
set(mylib_build_dir ${CMAKE_CURRENT_BINARY_DIR}/mylib)
|
|
|
|
set(MYLIB_LIB_DIR ${mylib_build_dir}/lib)
|
|
set(MYLIB_INCLUDE_DIR ${mylib_src_dir}/include)
|
|
|
|
ExternalProject_Add(
|
|
mylib_project # Name for custom target
|
|
PREFIX ${mylib_build_dir} # Root dir for entire project
|
|
SOURCE_DIR ${mylib_src_dir}
|
|
BINARY_DIR ${mylib_src_dir} # This particular build system is invoked from the root
|
|
CONFIGURE_COMMAND "" # Skip configuring the project, e.g. with autoconf
|
|
BUILD_COMMAND
|
|
make
|
|
PREFIX=${mylib_build_dir}
|
|
CC=${CMAKE_C_COMPILER}
|
|
CFLAGS=${external_project_cflags}
|
|
INSTALL_COMMAND "" # This particular build system has no install command
|
|
BUILD_BYPRODUCTS ${MYLIB_LIB_DIR}/libmylib.a
|
|
)
|
|
|
|
# Create a wrapper CMake library that our app can link with
|
|
add_library(mylib_lib STATIC IMPORTED GLOBAL)
|
|
add_dependencies(
|
|
mylib_lib
|
|
mylib_project
|
|
)
|
|
set_target_properties(mylib_lib PROPERTIES IMPORTED_LOCATION ${MYLIB_LIB_DIR}/libmylib.a)
|
|
set_target_properties(mylib_lib PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${MYLIB_INCLUDE_DIR})
|
|
|
|
target_link_libraries(app PUBLIC mylib_lib)
|