[Octave-bug-tracker] [bug #42339] Reasonable defaults for CFLAGS, CXXFLAGS, FFLAGS

[Mike Miller]

Update of bug #42339 (project octave):

                  Status:                    None => Works For Me           
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #1:

Thanks for your bug report. There are reasonable defaults set for all 3, and
they are


CFLAGS = -g -O2
CXXFLAGS = -g -O2
FFLAGS = -O


And as you found, users are free to override to whatever they like via
environment or configure command-line. So there's no bug as far as I can tell,
closing as works for me.

Note that if you got no optimization, it is likely you had CFLAGS and/or
CXXFLAGS set in your environment. If it is set to an empty string, that is
still a value, and empty default flags is what you will get.

Note also that -march=native is a bad choice for a default option because 1)
the option not work with all compilers, and 2) the resulting binary may not
run on other systems.

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