generic.cmake 12.8 KB
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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#
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# 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
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# 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.
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#
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# generic.cmake defines CMakes functions that look like Bazel's
# building rules (https://bazel.build/).
#
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# 
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# -------------------------------------------
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#     C++        CUDA C++       Go
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# -------------------------------------------
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# cc_library    nv_library   go_library
# cc_binary     nv_binary    go_binary
# cc_test       nv_test      go_test
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# -------------------------------------------
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# 
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# To build a static library example.a from example.cc using the system
#  compiler (like GCC):
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# 
#   cc_library(example SRCS example.cc)
# 
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# To build a static library example.a from multiple source files
# example{1,2,3}.cc:
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# 
#   cc_library(example SRCS example1.cc example2.cc example3.cc)
# 
# To build a shared library example.so from example.cc:
# 
#   cc_library(example SHARED SRCS example.cc)
# 
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# To build a library using Nvidia's NVCC from .cu file(s), use the nv_
# prefixed version:
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# 
#   nv_library(example SRCS example.cu)
# 
# To specify that a library new_example.a depends on other libraies:
# 
#   cc_library(new_example SRCS new_example.cc DEPS example)
# 
# Static libraries can be composed of other static libraries:
# 
#   cc_library(composed DEPS dependent1 dependent2 dependent3)
# 
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# To build an executable binary file from some source files and
# dependent libraries:
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# 
#   cc_binary(example SRCS main.cc something.cc DEPS example1 example2)
# 
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# To build an executable binary file using NVCC, use the nv_ prefixed
# version:
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# 
#   nv_binary(example SRCS main.cc something.cu DEPS example1 example2)
# 
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# To build a unit test binary, which is an executable binary with
# GoogleTest linked:
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# 
#   cc_test(example_test SRCS example_test.cc DEPS example)
# 
# To build a unit test binary using NVCC, use the nv_ prefixed version:
# 
#   nv_test(example_test SRCS example_test.cu DEPS example)
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#
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# It is pretty often that executable and test binaries depend on
# pre-defined external libaries like glog and gflags defined in
# /cmake/external/*.cmake:
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#
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#   cc_test(example_test SRCS example_test.cc DEPS example glog gflags)
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#
# To build a go static library using Golang, use the go_ prefixed version:
#
#   go_library(example STATIC)
#
# To build a go shared library using Golang, use the go_ prefixed version:
#
#   go_library(example SHARED)
#
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# including binary directory for generated headers.
include_directories(${CMAKE_CURRENT_BINARY_DIR})

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if(NOT APPLE)
    find_package(Threads REQUIRED)
    link_libraries(${CMAKE_THREAD_LIBS_INIT})
endif(NOT APPLE)
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function(merge_static_libs TARGET_NAME)
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  set(libs ${ARGN})
  list(REMOVE_DUPLICATES libs)
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  # First get the file names of the libraries to be merged
  foreach(lib ${libs})
    get_target_property(libtype ${lib} TYPE)
    if(NOT libtype STREQUAL "STATIC_LIBRARY")
      message(FATAL_ERROR "merge_static_libs can only process static libraries")
    endif()
    set(libfiles ${libfiles} $<TARGET_FILE:${lib}>)
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  endforeach()

  if(APPLE) # Use OSX's libtool to merge archives
    add_custom_target(${TARGET_NAME}_archive
      COMMAND libtool -static -o "${CMAKE_CURRENT_BINARY_DIR}/lib${TARGET_NAME}.a" ${libfiles}
      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
      DEPENDS ${libs}
      )
    add_library(${TARGET_NAME} STATIC IMPORTED GLOBAL)
    set_property(TARGET ${TARGET_NAME} PROPERTY
      IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/lib${TARGET_NAME}.a")
    add_dependencies(${TARGET_NAME} ${TARGET_NAME}_archive)
	else() # general UNIX: use "ar" to extract objects and re-add to a common lib
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    foreach(lib ${libs})
      set(objlistfile ${lib}.objlist) # list of objects in the input library
      set(objdir ${lib}.objdir)
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      add_custom_command(OUTPUT ${objdir}
        COMMAND ${CMAKE_COMMAND} -E make_directory ${objdir})
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      add_custom_command(OUTPUT ${objlistfile}
        COMMAND ${CMAKE_AR} -x "$<TARGET_FILE:${lib}>"
        COMMAND ${CMAKE_AR} -t "$<TARGET_FILE:${lib}>" > ../${objlistfile}
        DEPENDS ${lib} ${objdir}
        WORKING_DIRECTORY ${objdir})
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      # Empty dummy source file that goes into merged library
      set(mergebase ${lib}.mergebase.c)
      add_custom_command(OUTPUT ${mergebase}
        COMMAND ${CMAKE_COMMAND} -E touch ${mergebase}
        DEPENDS ${objlistfile})
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      list(APPEND mergebases "${mergebase}")
    endforeach()
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    # We need a target for the output merged library
    add_library(${TARGET_NAME} STATIC ${mergebases})
    set(outlibfile "$<TARGET_FILE:${TARGET_NAME}>")
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    foreach(lib ${libs})
    add_custom_command(TARGET ${TARGET_NAME} POST_BUILD
      COMMAND ${CMAKE_AR} ru ${outlibfile} @"../${objlistfile}"
      WORKING_DIRECTORY ${objdir})
    endforeach()
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    add_custom_command(TARGET ${TARGET_NAME} POST_BUILD
      COMMAND ${CMAKE_RANLIB} ${outlibfile})
  endif()
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endfunction(merge_static_libs)

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function(cc_library TARGET_NAME)
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  set(options STATIC static SHARED shared)
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  set(oneValueArgs "")
  set(multiValueArgs SRCS DEPS)
  cmake_parse_arguments(cc_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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  if (cc_library_SRCS)
    if (cc_library_SHARED OR cc_library_shared) # build *.so
      add_library(${TARGET_NAME} SHARED ${cc_library_SRCS})
    else()
      add_library(${TARGET_NAME} STATIC ${cc_library_SRCS})
    endif()
    if (cc_library_DEPS)
      add_dependencies(${TARGET_NAME} ${cc_library_DEPS})
    endif()
  else(cc_library_SRCS)
    if (cc_library_DEPS)
      merge_static_libs(${TARGET_NAME} ${cc_library_DEPS})
    else()
      message(FATAL "Please specify source file or library in cc_library.")
    endif()
  endif(cc_library_SRCS)
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endfunction(cc_library)

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function(cc_binary TARGET_NAME)
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  set(options "")
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  set(oneValueArgs "")
  set(multiValueArgs SRCS DEPS)
  cmake_parse_arguments(cc_binary "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
  add_executable(${TARGET_NAME} ${cc_binary_SRCS})
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  if(cc_binary_DEPS)
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    target_link_libraries(${TARGET_NAME} ${cc_binary_DEPS})
    add_dependencies(${TARGET_NAME} ${cc_binary_DEPS})
  endif()
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endfunction(cc_binary)

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function(cc_test TARGET_NAME)
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  if(WITH_TESTING)
    set(options "")
    set(oneValueArgs "")
    set(multiValueArgs SRCS DEPS)
    cmake_parse_arguments(cc_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
    add_executable(${TARGET_NAME} ${cc_test_SRCS})
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    target_link_libraries(${TARGET_NAME} ${cc_test_DEPS} gtest gtest_main)
    add_dependencies(${TARGET_NAME} ${cc_test_DEPS} gtest gtest_main)
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    add_test(${TARGET_NAME} ${TARGET_NAME})
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  endif()
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endfunction(cc_test)
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function(nv_library TARGET_NAME)
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  if (WITH_GPU)
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    set(options STATIC static SHARED shared)
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    set(oneValueArgs "")
    set(multiValueArgs SRCS DEPS)
    cmake_parse_arguments(nv_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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    if(nv_library_SRCS)
      if (nv_library_SHARED OR nv_library_shared) # build *.so
        cuda_add_library(${TARGET_NAME} SHARED ${nv_library_SRCS})
      else()
          cuda_add_library(${TARGET_NAME} STATIC ${nv_library_SRCS})
      endif()
      if (nv_library_DEPS)
        add_dependencies(${TARGET_NAME} ${nv_library_DEPS})
      endif()
    else(nv_library_SRCS)
      if (nv_library_DEPS)
        merge_static_libs(${TARGET_NAME} ${nv_library_DEPS})
      else()
        message(FATAL "Please specify source file or library in nv_library.")
      endif()
    endif(nv_library_SRCS)
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  endif()
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endfunction(nv_library)

function(nv_binary TARGET_NAME)
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  if (WITH_GPU)
    set(options "")
    set(oneValueArgs "")
    set(multiValueArgs SRCS DEPS)
    cmake_parse_arguments(nv_binary "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
    cuda_add_executable(${TARGET_NAME} ${nv_binary_SRCS})
    if(nv_binary_DEPS)
      target_link_libraries(${TARGET_NAME} ${nv_binary_DEPS})
      add_dependencies(${TARGET_NAME} ${nv_binary_DEPS})
    endif()
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  endif()
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endfunction(nv_binary)

function(nv_test TARGET_NAME)
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  if (WITH_GPU AND WITH_TESTING)
    set(options "")
    set(oneValueArgs "")
    set(multiValueArgs SRCS DEPS)
    cmake_parse_arguments(nv_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
    cuda_add_executable(${TARGET_NAME} ${nv_test_SRCS})
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    target_link_libraries(${TARGET_NAME} ${nv_test_DEPS} gtest gtest_main)
    add_dependencies(${TARGET_NAME} ${nv_test_DEPS} gtest gtest_main)
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    add_test(${TARGET_NAME} ${TARGET_NAME})
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  endif()
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endfunction(nv_test)
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set(GOPATH "${CMAKE_CURRENT_BINARY_DIR}/go")
file(MAKE_DIRECTORY ${GOPATH})
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set(PADDLE_IN_GOPATH "${GOPATH}/src/github.com/PaddlePaddle/Paddle")
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function(go_library TARGET_NAME)
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  set(options STATIC static SHARED shared)
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  set(oneValueArgs "")
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  set(multiValueArgs DEPS)
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  cmake_parse_arguments(go_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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  if (go_library_SHARED OR go_library_shared)
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    set(BUILD_MODE "-buildmode=c-shared")
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    set(LIB_NAME "${CMAKE_SHARED_LIBRARY_PREFIX}${TARGET_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}")
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  else()
    set(BUILD_MODE "-buildmode=c-archive")
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    set(LIB_NAME "${CMAKE_STATIC_LIBRARY_PREFIX}${TARGET_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}")
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  endif()
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  # Add dummy code to support `make target_name` under Terminal Command
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  set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}_dummy.c)
  file(WRITE ${dummyfile} "const char * dummy = \"${dummyfile}\";")
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  if (go_library_SHARED OR go_library_shared)
    add_library(${TARGET_NAME} SHARED ${dummyfile})
  else()
    add_library(${TARGET_NAME} STATIC ${dummyfile})
  endif()
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  if(go_library_DEPS)
    add_dependencies(${TARGET_NAME} ${go_library_DEPS})
  endif(go_library_DEPS)
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  # we need to symlink Paddle directory into GOPATH. If we
  # don't do it and we have code that depends on Paddle, go
  # get ./... will download a new Paddle repo from Github,
  # without the changes in our current Paddle repo that we
  # want to build.
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  file(GLOB GO_SOURCE RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "*.go")
  add_custom_command(TARGET ${TARGET_NAME} POST_BUILD
    COMMAND rm "${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}"
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    # Symlink Paddle directory into GOPATH
    COMMAND mkdir -p ${PADDLE_IN_GOPATH}
    COMMAND rm -rf ${PADDLE_IN_GOPATH}                                                                                                                                         
    COMMAND ln -sf ${CMAKE_SOURCE_DIR} ${PADDLE_IN_GOPATH}
    # Automatically get all dependencies specified in the source code                                                                                                                                 
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    COMMAND env GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} get -d ./...
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    # Golang build source code
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    COMMAND env GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} build ${BUILD_MODE}
    -o "${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}"
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    ${GO_SOURCE}
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    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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endfunction(go_library)

function(go_binary TARGET_NAME)
  set(options OPTIONAL)
  set(oneValueArgs "")
  set(multiValueArgs SRCS DEPS)
  cmake_parse_arguments(go_binary "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
  add_custom_command(OUTPUT ${TARGET_NAME}_timestamp
    COMMAND env GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} build
    -o "${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}"
    ${go_library_SRCS}
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    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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  add_custom_target(${TARGET_NAME} ALL DEPENDS ${TARGET_NAME}_timestamp ${go_binary_DEPS})
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  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME} DESTINATION bin)
endfunction(go_binary)

function(go_test TARGET_NAME)
  set(options OPTIONAL)
  set(oneValueArgs "")
  set(multiValueArgs SRCS DEPS)
  cmake_parse_arguments(go_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
  add_custom_command(OUTPUT ${TARGET_NAME}_timestamp
    COMMAND env GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} test
    -c -o "${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}"
    ${go_test_SRCS}
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    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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  add_custom_target(${TARGET_NAME} ALL DEPENDS ${TARGET_NAME}_timestamp ${go_test_DEPS})
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  add_test(${TARGET_NAME} ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME})
endfunction(go_test)
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function(proto_library TARGET_NAME)
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  set(oneValueArgs "")
  set(multiValueArgs SRCS)
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  cmake_parse_arguments(proto_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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  set(proto_srcs)
  set(proto_hdrs)
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  protobuf_generate_cpp(proto_srcs proto_hdrs ${proto_library_SRCS})
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  cc_library(${TARGET_NAME} SRCS ${proto_srcs} DEPS protobuf)
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endfunction()