The musl ebuild now tries to create an ldd symlink. However this breaks the build for crossdev targets. (The error message is something along the line "dosym: requires two arguments".) Another problem is that for crossdev targets the dynamic linker should be installed into /lib/ld-musl-* instead of /usr/${CTARGET}/lib/ld-musl-*. (Because the dynamic loader path is hardcoded.) Thirdly, the make.profile symlink in /usr/${CTARGET}/etc/make.conf is wrong. This seems to be an issue in crossdev, though. Reproducible: Always
*** This bug has been marked as a duplicate of bug 544128 ***