Build script fails to build YACLib (missing header)

[foxpy]

Build script fails with following output:

[7/16] Building CXX object future/CMakeFiles/bench.dir/bind/yaclib/future.cpp.o
FAILED: future/CMakeFiles/bench.dir/bind/yaclib/future.cpp.o 
/usr/sbin/clang++ -DBENCHMARK_STATIC_DEFINE -I/root/Bench/future -I/root/Bench/util -I/root/Bench/build_clang_libcxx/_deps/yaclib-src/include -I/root/Bench/build_clang_libcxx/_deps/yaclib-build/include -I/root/Bench/build_clang_libcxx/_deps/benchmark-src/include -O3 -DNDEBUG -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -stdlib=libc++ -std=c++17 -MD -MT future/CMakeFiles/bench.dir/bind/yaclib/future.cpp.o -MF future/CMakeFiles/bench.dir/bind/yaclib/future.cpp.o.d -o future/CMakeFiles/bench.dir/bind/yaclib/future.cpp.o -c /root/Bench/future/bind/yaclib/future.cpp
In file included from /root/Bench/future/bind/yaclib/future.cpp:1:
/root/Bench/future/bind/yaclib/future.hpp:4:10: fatal error: 'yaclib/algo/when_all.hpp' file not found
#include <yaclib/algo/when_all.hpp>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

Indeed, file algo/when_all.hpp doesn't exist anywhere.