https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90419
Bug ID: 90419 Summary: RISCV --with-multilib-list support is somewhat incomplete Product: gcc Version: 8.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: dilfridge at gentoo dot org Target Milestone: --- Right now, building a multilib compiler for riscv64 / glibc gives you two options: 1) Enable multilib, no further specifications This tries to build both rv64gc and rv32i, and fails badly because glibc does not support 32bit yet (it #errors in headers). 2) Use --with-multilib-list, which is restricted to one ABI and thus makes the whole *multi*lib thing a bit pointless. Being able to select more than one ABI, or being able to deselect all of 32bit (at least until glibc support for that is available) would be highly desirable.