OpenROAD build with recent versions of FMT and SPDLOG

Subcategory: Dependency compatibility issues

Conversation

sebinho

I am not sure where to put this, but I had lots of issues lately building OpenROAD on ArchLinux and I thought this might help other people. The issues I had seem to be related to more recent versions of spdlog and fmt packages. Dowgrading fmt to 8.1.1-2 and spdlog to 1.13.0 solves the issues (latest versions are 10.2.0-1 and 1.14.1-1).

The issues were as follows during the build (one example, others are similar):

/usr/include/fmt/core.h:1600:63: error: ‘fmt::v10::detail::type_is_unformattable_for<const dpl::TypedCoordinate<dpl::GridYType>, char> _’ has incomplete type
 1600 |     type_is_unformattable_for<T, typename Context::char_type> _;
      |                                                               ^
/usr/include/fmt/core.h:1604:7: error: static assertion failed: Cannot format an argument. To make type T formattable provide a formatter<T> specialization: https://fmt.dev/latest/api.html#udt
 1604 |       formattable,
      |       ^~~~~~~~~~~
/usr/include/fmt/core.h:1604:7: note: ‘formattable’ evaluates to false

The better way for me to solve my issue (instead of downgrading packages) was to build OpenROAD with the following flag during cmake: -DSPDLOG_FMT_EXTERNAL=OFF

rovinski

You might want to take a look at the dependency installer because this issue is known. It may not have support for Arch but you can look at comments for other distros for notes like this.

maliberty

Please see my comment about FMT_DEPRECATED_OSTREAM in https://github.com/The-OpenROAD-Project/OpenROAD/pull/2696