The -mcustom-fpu-cfg=60-1 option is equivalent to setting
The -mcustom-fpu-cfg=60-2 option is equivalent to setting
However, be aware that these two "60" options are applied late when scanning the command line. The consequence is that you cannot disable -fsingle-precision-constant if either of these options is present.
The "60" in the options' names refers to the first version of the Nios dev kit that supports them (6.0).
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