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[package] boost/*: CMakeDeps generator broken for Conan 1.51.0

See original GitHub issue

Package and Environment Details

Package Name/Version: conan/1.79.0
Operating System+version: Fedora Linux 36
Compiler+version: GCC 12
Conan version: conan 1.51.0
Python version: Python 3.10.5

Conan profile

conan profile show linux/gcc/debug Configuration for profile linux/gcc/debug:

[settings] os=Linux arch=x86_64 compiler=gcc compiler.version=12 compiler.libcxx=libstdc++11 compiler.cppstd=17 build_type=Debug [options] [conf] [build_requires] [env]

Steps to reproduce

Use CMakeDeps generator with the Boost package from Conan Center as a requires.
Run conan install.
Run conan build, where the configure stage of CMake will fail.

Logs

Click to expand log

CMake Error at build/Boost-Target-debug.cmake:1274 (target_link_libraries):
  Cannot specify link libraries for target "boost::boost" which is not built
  by this project.
Call Stack (most recent call first):
  build/BoostTargets.cmake:26 (include)
  build/BoostConfig.cmake:10 (include)
  CMakeLists.txt:1 (find_package)


-- Configuring incomplete, errors occurred!

Issue Analytics

State:
Created a year ago
Comments:20 (15 by maintainers)

Top GitHub Comments

2reactions

jwillikerscommented, Aug 1, 2022

I re-created a minimal example project demonstrating the problem. Due to the fact the release notes mentioned GLOBAL target behavior, I deduced the problem only occurred when using multiple CMakeLists.txt files through add_subdirectory.

CMakeLists.txt:

cmake_minimum_required(VERSION 3.16)
project(hello CXX)

set(CMAKE_FIND_PACKAGE_PREFER_CONFIG yes CACHE BOOL "")
find_package(Boost REQUIRED COMPONENTS exception headers)

add_subdirectory(src)

src/CMakeLists.txt:

find_package(Boost REQUIRED COMPONENTS exception headers)

add_library(hello hello.cpp)
target_include_directories(hello PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/../include)

target_link_libraries(hello PUBLIC Boost::exception Boost::headers)

set_target_properties(hello PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/../include/hello.h")
install(TARGETS hello)

1reaction

lasotecommented, Aug 2, 2022

I finally manage to reproduce it. Now I can hunt the bug, million thanks for your help.

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