https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120929
--- Comment #6 from qinzhao at gcc dot gnu.org --- (In reply to Sergei Trofimovich from comment #3) > (In reply to qinzhao from comment #2) > > could you please reduce the testing case to help me debug? > > Will do. Might take some time as I'm not very familiar with `file` code base. Thanks a lot. will you use C-reduce to reduce the testing case? I tried your instructions in the Description part to git clone, autoreconf -ivf, these have no issues, but when make [opc@qinzhao-ol8u3-x86 file]$ make make: *** No targets specified and no makefile found. Stop. did I do anything wrong?