CMake：如何为安装不同的目标创建别名？

Question

假设我有以下库：

add_library(myLib_static STATIC ${SRC_FILES})
add_library(myLib SHARED ${SRC_FILES})

# installing header files
install(FILES ${H_FILES} DESTINATION ${INSTDIRHEADER})

# installing binaries
install(TARGETS myLib_static
         DESTINATION ${INSTDIRBIN})

install(TARGETS myLib
         DESTINATION ${INSTDIRBIN})

如果我执行以下命令，将安装共享库和静态库：

make install

我怎样才能为它们分别设置单独的安装命令？像这样的：

make install-static
make install-shared

更新：

头文件也应该在需要时安装：

install(FILES ${H_FILES} DESTINATION ${INSTDIRHEADER})

Answer 1

将它们分别放在不同的组件中，并为安装设置自定义目标。

add_library(foo_static STATIC foo.cpp)
add_library(foo SHARED foo.cpp)

install(TARGETS foo_static
        DESTINATION bin
        COMPONENT static)

install(TARGETS foo
        DESTINATION bin
        COMPONENT shared)

add_custom_target(foo-install
  DEPENDS foo
  COMMAND 
      "${CMAKE_COMMAND}" -DCMAKE_INSTALL_COMPONENT=shared
      -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
)

add_custom_target(foo_static-install
  DEPENDS foo_static
  COMMAND
     "${CMAKE_COMMAND}" -DCMAKE_INSTALL_COMPONENT=static 
     -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
)

install(FILES foo.h DESTINATION include COMPONENT static)
install(FILES foo.h DESTINATION include COMPONENT shared)

然后调用自定义目标。

stephen@hal:~/dev/src/playground/cmake/build{master}$ cmake .. -DCMAKE_INSTALL_PREFIX=prefix
-- The C compiler identification is GNU 4.8.1
-- The CXX compiler identification is GNU 4.8.1
-- Check for working C compiler: /usr/lib/icecc/bin/cc
-- Check for working C compiler: /usr/lib/icecc/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/lib/icecc/bin/c++
-- Check for working CXX compiler: /usr/lib/icecc/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/stephen/dev/src/playground/cmake/build
stephen@hal:~/dev/src/playground/cmake/build{master}$ make foo_static-install
makeobj[0]: Entering directory `/home/stephen/dev/src/playground/cmake/build'
Scanning dependencies of target foo_static
[100%] Building CXX object CMakeFiles/foo_static.dir/foo.cpp.o
Linking CXX static library libfoo_static.a
[100%] Built target foo_static
Scanning dependencies of target foo_static-install
-- Install configuration: ""
-- Installing: /home/stephen/dev/src/playground/cmake/build/prefix/bin/libfoo_static.a
-- Installing: /home/stephen/dev/src/playground/cmake/build/prefix/include/foo.h

[100%] Built target foo_static-install
makeobj[0]: Leaving directory `/home/stephen/dev/src/playground/cmake/build'
stephen@hal:~/dev/src/playground/cmake/build{master}$ make foo-install
makeobj[0]: Entering directory `/home/stephen/dev/src/playground/cmake/build'
Scanning dependencies of target foo
[100%] Building CXX object CMakeFiles/foo.dir/foo.cpp.o
Linking CXX shared library libfoo.so
[100%] Built target foo
Scanning dependencies of target foo-install
-- Install configuration: ""
-- Installing: /home/stephen/dev/src/playground/cmake/build/prefix/bin/libfoo.so
-- Up-to-date: /home/stephen/dev/src/playground/cmake/build/prefix/include/foo_p.h
[100%] Built target foo-install
makeobj[0]: Leaving directory `/home/stephen/dev/src/playground/cmake/build'

请注意，cpack 使用组件来允许安装软件包的用户决定要安装哪些组件。因此，对于库来说，标头可能是开发组件的一部分。在这种情况下，我们安装带有共享和静态组件的标头。如果要以这种方式使用 cpack，则额外安装一个开发组件可能是有意义的。