[Bug-ed] strict aliasing redux

[Mike Frysinger]

ed has had an issue for a while where it violates strict aliasing rules (stack 
management in buf.c, buffer management in carg_parser.c and glbl.c).  
depending on the version of gcc, this may trigger a crash in ed.  until the 
source gets sorted out, can we have configure append -fno-strict-aliasing to 
CFLAGS (assuming the target compiler supports it) ?
-mike

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