Has anybody else come across this?
I am no longer able to build from master due to this:
CC src/jltypes.o
In file included from /j/julia/src/jltypes.c:16:
In file included from ./julia_internal.h:465:
In file included from /j/julia/usr/include/libunwind.h:25:
In file included from /j/julia/usr/include/libunwind-x86_64.h:37:
/usr/include/ucontext.h:43:2: error: The deprecated ucontext routines
require _XOPEN_SOURCE to be defined
#error The deprecated ucontext routines require _XOPEN_SOURCE to be defined
