[CMake] Question about INSTALL_COMMAND for ExternalProject_Add()

[Workbench@gmx.at]

I got the problem solved again, but now i'm stuck... now i've the following:


add_library(glad STATIC IMPORTED)
set_target_properties(glad PROPERTIES IMPORTED_LOCATION
${LIB_DIR}/glad/lib/libglad.a)

add_library(glfw3 STATIC IMPORTED)
set_target_properties(glfw3 PROPERTIES IMPORTED_LOCATION
${LIB_DIR}/glew/lib/libglfw3.a)


add_executable(Test01 source/test/Test01.cpp)
target_link_libraries(Test01 PRIVATE glad glfw3)

But now he can't find the header files which are also created after the
configuration, how to solve this problem ??

I hope you see i put much effort in this and find most of the problems
alone, i hope this time someone can help me out.


best regards!


On 10.03.19 12:38, Workbench at gmx.at wrote:
>
> I came a step forward, now it looks like this:
>
> include(ExternalProject)
> ExternalProject_Add(glfw3
>     PREFIX ${CMAKE_BINARY_DIR}/glfw-log
>     GIT_REPOSITORY https://github.com/glfw/glfw.git
>     GIT_TAG 3.2.1
>     SOURCE_DIR ${CMAKE_BINARY_DIR}/glfw
>     UPDATE_COMMAND ""
>     PATCH_COMMAND ""
>     INSTALL_DIR ${CMAKE_BINARY_DIR}/glfw
>     CMAKE_ARGS -DCMAKE_BUILD_TYPE:String={CMAKE_BUILD_TYPE}
> -DCMAKE_INSTALL_PREFIX=${LIB_DIR}/glfw
> )
>
> ExternalProject_Add(glad
>     PREFIX ${CMAKE_BINARY_DIR}/glad-log
>     GIT_REPOSITORY https://github.com/Dav1dde/glad.git
>     GIT_TAG v0.1.29
>     SOURCE_DIR ${CMAKE_BINARY_DIR}/glad
>     UPDATE_COMMAND ""
>     PATCH_COMMAND ""
>     INSTALL_DIR ${CMAKE_BINARY_DIR}/glad
>     CMAKE_ARGS -DCMAKE_BUILD_TYPE:String=${CMAKE_BUILD_TYPE}
> -DCMAKE_INSTALL_PREFIX=${LIB_DIR}/glad -DGLAD_EXPORT=True
> -DGLAD_INSTALL=True
>     CONFIGURE_COMMAND ${CMAKE_BUILD_DIR}/
>     INSTALL_COMMAND
>         COMMAND ${CMAKE_COMMAND} -E copy
> ${CMAKE_BINARY_DIR}/glad-log/src/glad-build/libglad.a
> ${LIB_DIR}/glad/lib/libglad.a
>         COMMAND ${CMAKE_COMMAND} -E copy_directory
> ${CMAKE_BINARY_DIR}/glad-log/src/glad-build/include ${LIB_DIR}/glad/
> )
> find_package(glad REQUIRED)
> find_package(glfw3 REQUIRED)
> add_executable(Test01 source/test/Test01.cpp)
> target_link_libraries(Test01 PRIVATE glad glfw3)
>
> But now i've the following problem, i get the error message:
>
> CMake Error at CMakeLists.txt:95 (find_package):
>   By not providing "Findglad.cmake" in CMAKE_MODULE_PATH this project has
>   asked CMake to find a package configuration file provided by "glad", but
>   CMake did not find one.
>
>   Could not find a package configuration file provided by "glad" with
> any of
>   the following names:
>
>     gladConfig.cmake
>     glad-config.cmake
>
>   Add the installation prefix of "glad" to CMAKE_PREFIX_PATH or set
>   "glad_DIR" to a directory containing one of the above files.  If "glad"
>   provides a separate development package or SDK, be sure it has been
>   installed.
>
> The problem is gladConfig.cmake is created after the configure
> procedure, how can i solve this issue ??
>
>
> best regards!
>
>
>
>
> On 10.03.19 11:44, Workbench at gmx.at wrote:
>>
>> Now i've managed to create the right INSTALL_COMMAND but i don't know
>> how to link with my executable. i tried
>>
>> add_executable(MyApp ${src})
>>
>> target_link_libraries(MyApp STATIC GLFW GLAD)
>>
>> and i get the following error message:
>>
>> CMake Error at CMakeLists.txt:96 (target_link_libraries):
>>   Target "LIBGLAD" of type UTILITY may not be linked into another target.
>>   One may link only to INTERFACE, OBJECT, STATIC or SHARED libraries,
>> or to
>>   executables with the ENABLE_EXPORTS property set.
>>
>>
>> CMake Error at CMakeLists.txt:96 (target_link_libraries):
>>   Target "LIBGLFW" of type UTILITY may not be linked into another target.
>>   One may link only to INTERFACE, OBJECT, STATIC or SHARED libraries,
>> or to
>>   executables with the ENABLE_EXPORTS property set.
>>
>>
>>
>> target_link_libraries(M
>>
>> On 10.03.19 10:40, Workbench at gmx.at wrote:
>>> Hi everyone,
>>>
>>> i've managed to use ExternalProject_Add to install GLFW but i have
>>> troubles with glad...
>>>
>>> Here is my code for GLFW wich is working:
>>>
>>> include(ExternalProject)
>>> ExternalProject_Add(GLFW
>>>     PREFIX ${LIBDIR}/${CMAKE_BUILD_TYPE}/glfw-log
>>>     GIT_REPOSITORY https://github.com/glfw/glfw.git
>>>     GIT_TAG 3.2.1
>>>     SOURCE_DIR ${CMAKE_BINARY_DIR}/glfw
>>>     UPDATE_COMMAND ""
>>>     PATCH_COMMAND ""
>>>     INSTALL_DIR ${LIBDIR}/glfw
>>>     CMAKE_ARGS -DCMAKE_BUILD_TYPE:String={CMAKE_BUILD_TYPE}
>>> -DCMAKE_INSTALL_PREFIX=${LIB_DIR}/glfw
>>> )
>>>
>>> Now i tried the same with GLAD but i had to add INSTALL_COMMAND to make
>>> it work but i've no clue what i should enter there to install it the
>>> same way i did with glfw..
>>>
>>> ExternalProject_Add(GLAD
>>>     PREFIX ${LIBDIR}/${CMAKE_BUILD_TYPE}/glad-log
>>>     GIT_REPOSITORY https://github.com/Dav1dde/glad.git
>>>     GIT_TAG v0.1.29
>>>     SOURCE_DIR ${CMAKE_BINARY_DIR}/glad
>>>     UPDATE_COMMAND ""
>>>     PATCH_COMMAND ""
>>>     INSTALL_DIR ${CMAKE_BINARY_DIR}/${CMAKE_BUILD_TYPE}/glad
>>>     CMAKE_ARGS -DCMAKE_BUILD_TYPE:String=${CMAKE_BUILD_TYPE}
>>> -DCMAKE_INSTALL_PREFIX=${LIB_DIR}/glad
>>>     INSTALL_COMMAND "??"
>>> )
>>>
>>>
>>> I hope someone can help me, i'm a bit clueless about this.
>>>
>>>
>>> best regards!
>>>
>>>
>>
>
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