[question] How to properly build and install self-made headers and libraries with CMake and Conan for the consumer? about conan HOT 5 CLOSED

install(TARGETS my_foundation PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/include/my_foundation)

You are copying it wrong. Please copy my CMakeLists.txt on top of yours. Or omit the ${CMAKE_INSTALL_INCLUDEDIR}, which is creating a double include folder

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Or omit the ${CMAKE_INSTALL_INCLUDEDIR}, which is creating a double include folder

I understand that with this change it worked? 🙂

Happy if that is the case, thanks for the feedback!

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Hi @Isaacwhyuenac

Thanks for your question.

I hope my internal library in src would consume the include/my_foundation/my_algorithm.h file without the my_foundation namespace like this

I'd like to challenge this. In my experience (not talking about Conan specifically, but as a C++ developer for decades), it is almost always better to use the same #include paths both in development and for final consumption. The build systems and compilers "include paths" definition allows to have this easily.

Otherwise, this is mostly a CMake question, not a Conan one. You had:

install(TARGETS my_foundation
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/include/my_foundation # NOT WORKING
)

Use this CMakeLists.txt:

cmake_minimum_required(VERSION 3.15)
project(mypkg CXX)

add_library(mypkg src/mypkg.cpp)
target_include_directories(mypkg PUBLIC include)

set_target_properties(mypkg PROPERTIES PUBLIC_HEADER "include/mypkg.h")
install(TARGETS mypkg PUBLIC_HEADER DESTINATION include/myfolder)

And change the test_package include to #include "myfolder/mypkg.h" and it will work.

Please try that and let me know.

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Hi @memsharded.

Thank you for your quick response.

I updated my code based on your recommendation and still have some issues.

cpp-namespacing/test_package/src/example.cpp:1:10: fatal error: 'my_foundation/my_algorithm.h' file not found
#include "my_foundation/my_algorithm.h"

Seems the test_package cannot find my header files and the install(TARGETS my_foundation PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/include/my_foundation) is not copying the include directory to the build/Release folder.....

I have updated my code to Here

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Thank you for your advice. It is working.

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