Build failing when linking QuEST as a library

[vaferreiQMT]

Howdy!

I was playing around with QuEST last week and ran into some funky build system behaviour. Namely, QuEST will compile on its own but fail when linked as a library.

Basic example

cmake_minimum_required(VERSION 3.16)
project(ExampleApp)
include(FetchContent)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

FetchContent_Declare(
  quest
  GIT_REPOSITORY https://github.com/QuEST-Kit/QuEST
)
FetchContent_MakeAvailable(quest)

add_executable(ExampleApp main.cpp)
target_link_libraries(BasicApp PUBLIC QuEST)

Building will fail with fatal error: 'quest/include/config.h' file not found.

Not a CMake connoisseur but I found the following:
Current commit (2655690): fatal error: 'quest/include/config.h' file not found
21 June (f28691c): fatal error: 'quest/include/config.h' file not found
8 May (9be1dfd): fatal error: 'quest.h' file not found
6 May (ce95cf2): BUILDS

Thanks!

[TysonRayJones]

Hi Vasco,
Totally our fault - we're overhauling how the config file works in PR #685 which we're actually expecting to merge today! (unless something goes wrong). If you need installation right away, you can switch to the refactor-options branch, but otherwise checking back even tomorrow might mean a new QuEST release which installs fine (🤞)

[vaferreiQMT]

Thanks for the help! I've been using ce95cf2 which seems to build fine, so I'm happy to keep using that whilst the updated build setup is worked on.

Just a heads up the issue seems to persist on the refactor-options branch (as of commit 3878f03), raising fatal error: 'quest/include/config.h' file not found.

[otbrown]

Hi @vaferreiQMT -- your minimum example works for me with the fix in #691. Could you give it a go and let us know if it works for you too?

[vaferreiQMT]

Yup, #691 resolves the issue here too, thank you for the speedy fix!