hpx: Configure of HPX project using CMake FetchContent fails

Expected Behavior

My project uses CMake’s FetchContent module to fetch, configure and build HPX. Configuring and building my project should trigger a successful configure and build of HPX.

Actual Behavior

Configuring of the HPX project fails with messages like this:

CMake Error: File /home/kor/development/project/hello_hpx/cmake/templates/global_module_header.hpp.in does not exist.
CMake Error at /tmp/hello_hpx/Debug-default/build/_deps/hpx-src/cmake/HPX_AddModule.cmake:102 (configure_file):
  configure_file Problem configuring file
Call Stack (most recent call first):
  /tmp/hello_hpx/Debug-default/build/_deps/hpx-src/libs/algorithms/CMakeLists.txt:126 (add_hpx_module)

Steps to Reproduce the Problem

1. git clone https://github.com/kordejong/hello_hpx.git
2. ./debug_build.sh

Specifications

I will attach a file with details and error messages.

• HPX Version: 1.4.0-rc1
• Platform (compiler, OS): Linux, gcc