https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118884
kargls at comcast dot net changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargls at comcast dot net --- Comment #4 from kargls at comcast dot net --- (In reply to Sam James from comment #3) > Should I ask LAPACK upstream to build with -std=legacy? Well, no, that should not be needed. Whatever changed is clearly broken. There is an explicit declaration for CSLECT and it is explicitly given an EXTERNAL attribute in the specification part of the subroutine. Lines 381-385 are * .. * .. External Functions .. LOGICAL CSLECT REAL CLANGE, SLAMCH EXTERNAL CSLECT, CLANGE, SLAMCH There is no type mismatch.