Minor question about optimization flags in ./configure

[José Luis García Pallero]

Hello:

I've seen (octave 4.0.0 rc4) that after the ./configure step, the
C/C++ compiling order contains the -O2 optimization flags but the
Fortran one contains only the -O. Is there any reason in order to not
use the -O2 flag in Fortran by default?

Also the gcc and g++ calls contain the -g flag in order to generate
debug symbols, but it is not used in the Fortran call. About the
performance for a normal user (not a developer), has -g any impact?

Thanks

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José Luis García Pallero
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