blob: 7875504a56ed126df648027f6c0b2fc69aff2c33 [file] [log] [blame]
cmake_minimum_required(VERSION 2.8.12)
project(nanopb C)
set(nanopb_VERSION_STRING nanopb-0.4.8-dev)
set(nanopb_SOVERSION 0)
string(REPLACE "nanopb-" "" nanopb_VERSION ${nanopb_VERSION_STRING})
option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
option(BUILD_STATIC_LIBS "Build static libraries" ON)
option(nanopb_BUILD_RUNTIME "Build the headers and libraries needed at runtime" ON)
option(nanopb_BUILD_GENERATOR "Build the protoc plugin for code generation" ON)
option(nanopb_MSVC_STATIC_RUNTIME "Link static runtime libraries" ON)
set(nanopb_PYTHON_INSTDIR_OVERRIDE "" CACHE PATH "Override the default python installation directory with the given path")
find_program(nanopb_PROTOC_PATH protoc HINTS generator-bin generator)
if(NOT EXISTS ${nanopb_PROTOC_PATH})
message(FATAL_ERROR "protoc compiler not found")
endif()
if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
set(CMAKE_DEBUG_POSTFIX "d")
endif()
include(GNUInstallDirs)
if(MSVC AND nanopb_MSVC_STATIC_RUNTIME)
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
endforeach(flag_var)
endif()
if(NOT DEFINED CMAKE_INSTALL_CMAKEDIR)
set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/nanopb")
endif()
if (NOT nanopb_PYTHON_INSTDIR_OVERRIDE)
find_package(Python REQUIRED COMPONENTS Interpreter)
execute_process(
COMMAND ${Python_EXECUTABLE} -c
"import os.path, sys, sysconfig; print(os.path.relpath(sysconfig.get_path('purelib'), start=sys.prefix))"
OUTPUT_VARIABLE PYTHON_INSTDIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else()
set(PYTHON_INSTDIR ${nanopb_PYTHON_INSTDIR_OVERRIDE})
endif()
message(STATUS "Python install dir: ${PYTHON_INSTDIR}")
if(nanopb_BUILD_GENERATOR)
set(generator_protos nanopb)
foreach(generator_proto IN LISTS generator_protos)
string(REGEX REPLACE "([^;]+)" "${PROJECT_SOURCE_DIR}/generator/proto/\\1.proto" generator_proto_file "${generator_proto}")
string(REGEX REPLACE "([^;]+)" "\\1_pb2.py" generator_proto_py_file "${generator_proto}")
add_custom_command(
OUTPUT ${generator_proto_py_file}
COMMAND ${nanopb_PROTOC_PATH} --python_out=${PROJECT_BINARY_DIR} -I${PROJECT_SOURCE_DIR}/generator/proto ${generator_proto_file}
DEPENDS ${generator_proto_file}
)
add_custom_target("generate_${generator_proto_py_file}" ALL DEPENDS ${generator_proto_py_file})
install(
FILES ${PROJECT_BINARY_DIR}/${generator_proto_py_file}
${generator_proto_file}
DESTINATION ${PYTHON_INSTDIR}/proto/
)
endforeach()
install( FILES generator/proto/_utils.py
generator/proto/__init__.py
DESTINATION ${PYTHON_INSTDIR}/proto/ )
endif()
if(WIN32)
install(
PROGRAMS
generator/nanopb_generator.py
generator/protoc-gen-nanopb.bat
DESTINATION ${CMAKE_INSTALL_BINDIR}
)
else()
install(
PROGRAMS
generator/nanopb_generator.py
generator/protoc-gen-nanopb
DESTINATION ${CMAKE_INSTALL_BINDIR}
)
endif()
if(nanopb_BUILD_RUNTIME)
if(BUILD_SHARED_LIBS)
add_library(protobuf-nanopb SHARED
pb.h
pb_common.h
pb_common.c
pb_encode.h
pb_encode.c
pb_decode.h
pb_decode.c)
set_target_properties(protobuf-nanopb PROPERTIES
SOVERSION ${nanopb_SOVERSION})
install(TARGETS protobuf-nanopb EXPORT nanopb-targets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
target_include_directories(protobuf-nanopb INTERFACE
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
)
endif()
if(BUILD_STATIC_LIBS)
add_library(protobuf-nanopb-static STATIC
pb.h
pb_common.h
pb_common.c
pb_encode.h
pb_encode.c
pb_decode.h
pb_decode.c)
set_target_properties(protobuf-nanopb-static PROPERTIES
OUTPUT_NAME protobuf-nanopb)
install(TARGETS protobuf-nanopb-static EXPORT nanopb-targets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
target_include_directories(protobuf-nanopb-static INTERFACE
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
)
endif()
configure_file(extra/nanopb-config-version.cmake.in
nanopb-config-version.cmake @ONLY)
install(EXPORT nanopb-targets
DESTINATION ${CMAKE_INSTALL_CMAKEDIR}
NAMESPACE nanopb::)
install(FILES extra/nanopb-config.cmake
${CMAKE_CURRENT_BINARY_DIR}/nanopb-config-version.cmake
DESTINATION ${CMAKE_INSTALL_CMAKEDIR})
install(FILES pb.h pb_common.h pb_encode.h pb_decode.h
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
endif()