Issue #19481 has been updated by k0kubun (Takashi Kokubun). Status changed from Assigned to Closed Accepting @nobu's answer as the solution. I personally just blew away the entire build directory, but a colleague of mine did `./autogen.sh`, `./configure`, and `make` and it worked. It might work without `./autogen.sh` as @hsbt said, but I haven't tested it. ---------------------------------------- Bug #19481: make: *** No rule to make target 'defs/universal.mk'. Stop. https://bugs.ruby-lang.org/issues/19481#change-102184 * Author: duerst (Martin Dürst) * Status: Closed * Priority: Normal * Assignee: k0kubun (Takashi Kokubun) * ruby -v: ruby 3.1.0dev (2021-06-03T06:59:33Z master 7e14762159) [x86_64-linux] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- When I tried to compile Ruby with `make up; make`, I got the message in the Subject. The line before said: `GNUmakefile:30: defs/universal.mk: No such file or directory` Below is the start of the output. git seems to correctly download new stuff. But apparently something is missing. I hope this problem can be fixed soon. ``` duerst@Kloentalersee:~/15ruby$ make up; make remote: Enumerating objects: 4839, done. remote: Counting objects: 100% (4839/4839), done. remote: Compressing objects: 100% (2467/2467), done. remote: Total 4839 (delta 3132), reused 2965 (delta 2049), pack-reused 0 Receiving objects: 100% (4839/4839), 3.20 MiB | 2.53 MiB/s, done. Resolving deltas: 100% (3132/3132), completed with 391 local objects. From git.ruby-lang.org:ruby cb40432c74..f68580890f master -> origin/master a4ab9921a1..0602df301c ruby_3_1 -> origin/ruby_3_1 31819e82c8..f93c7b9f58 ruby_3_2 -> origin/ruby_3_2 8f9b896b51..926b22ef5c refs/notes/commits -> refs/notes/commits Updating cb40432c74..f68580890f Fast-forward ``` -- https://bugs.ruby-lang.org/