https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69639
pkoning at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pkoning at gcc dot gnu.org --- Comment #10 from pkoning at gcc dot gnu.org --- I see this issue on my Mac (Mac OS 10.13.3, Apple LLVM version 9.1.0 (clang-902.0.39.1)). It shows up both for the native (x86) target, and the pdp11 target. But the behavior is very strange. If I create a new build directory, configure, make, then try compiling limits-exprparens.c, it works fine. If I then rebuild some files -- for example, by "touch config/<target>/<target>.h; make" then the bug appears. This strangeness is reproducible. What's stranger is that doing a "make distclean; configure... ; make" also reproduces the problem; it doesn't make any sense for make distclean to be different from starting with a new empty directory, but it is.