Malcolm.Wallace at cs.york.ac.uk
Wed Jul 12 05:23:25 EDT 2006
dons at cse.unsw.edu.au (Donald Bruce Stewart) wrote:
> > So what am I doing wrong? And is there any way to ask the compiler
> > to give a warning if the RULES pragma contains errors?
> In this case, it's because it's missing -fglasgow-exts, I think.
Ah, thank you. The missing (and undocumented) option. Is there any
reason why -fglasgow-exts should be required? Judging by the flag
reference material in section 4.17.15, -frules-off is used to turn RULES
off explicitly, but there is no corresponding flag to turn them on -
hence I assumed they would be enabled by default when -O or -O2 is set.
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