commit fa5d633ee56cce1e09d9e423b380cfe6f811526c
Author: Nicolas Morey <nmorey@suse.com>
Date:   Wed Jun 26 15:27:48 2024 +0200

    remove maybe_unused
    
    For some reason GCC < 9 does not like this one
    
    Signed-off-by: Nicolas Morey <nmorey@suse.com>

diff --git libs/core/executors/include/hpx/executors/service_executors.hpp libs/core/executors/include/hpx/executors/service_executors.hpp
index 297b49d9bec3..f7697164b4f2 100644
--- libs/core/executors/include/hpx/executors/service_executors.hpp
+++ libs/core/executors/include/hpx/executors/service_executors.hpp
@@ -47,7 +47,7 @@ namespace hpx::parallel::execution::detail {
             hpx::execution::experimental::static_chunk_size;
 
         explicit service_executor(
-            [[maybe_unused]] hpx::util::io_service_pool* pool) noexcept
+            hpx::util::io_service_pool* pool) noexcept
 #if defined(HPX_COMPUTE_HOST_CODE)
           : pool_(pool)
 #endif