Check the attached build log (with -j8), at the beginning of src_install. By the way, the Makefiles hardcode gmake calls, it should use ${MAKE} instead, and should probably need extra attention so that jobserver data (for parallel make) is passed on (check the GNU make manual if you want to fix it, or tell upstream to). In general mkdir should always be replaced by mkdir -p so that it does not fail when the directory exist... HTH, Diego
Created attachment 170203 [details] Build log
Fixed in CVS. Thanks for catching this.