/builddir/build/BUILD/rnp-v0.17.1/src/librekey/key_store_g10.cpp: In member function ‘void gnupg_sexp_t::add_mpi(const std::string&, const pgp_mpi_t&)’:
/builddir/build/BUILD/rnp-v0.17.1/src/librekey/key_store_g10.cpp:342:46: error: ‘std::__cxx11::basic_string<unsigned char>’ is not a base of ‘sexp::sexp_simple_string_t’
342 | data.std::basic_string<uint8_t>::append(mpi.mpi + idx, len - idx);
| ^~~~~~
/builddir/build/BUILD/rnp-v0.17.1/src/librekey/key_store_g10.cpp: In function ‘bool g23_parse_seckey(pgp_key_pkt_t&, const uint8_t*, size_t, const char*)’:
/builddir/build/BUILD/rnp-v0.17.1/src/librekey/key_store_g10.cpp:809:51: error: ‘const class sexp::sexp_simple_string_t’ has no member named ‘c_str’
809 | id_str_pair::lookup(g10_alg_aliases, alg_bt.c_str(), PGP_PKA_NOTHING));
| ^~~~~
So API is changed BUT soname is unchanged.
(switching from 0.8.7 to 0.9.0 for the soname is not enough, as only the first number is used for compact.)
See abi-compliance-checker report https://rpms.remirepo.net/compat_reports/libsexpp/0.8.7_to_0.9.0/compat_report.html
And rnp build is failing
So API is changed BUT soname is unchanged. (switching from 0.8.7 to 0.9.0 for the soname is not enough, as only the first number is used for compact.)