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Re: [PATCH v4 03/13] C-SKY: Math support
On Wed, 12 Sep 2018, Mao Han wrote:
> * sysdeps/csky/fpu/fpu_control.h: Likewise.
fpu_control.h is an installed header, and we generally want installed
headers to be the same between different multilibs for the same compiler,
so that a single include directory can be shared between multilibs.
Thus, it should not be in the fpu/ directory; instead, it should contain
preprocessor conditionals to make most of the contents trivial in the
soft-float case (as done for arm / m68k / mips / riscv / sh).
Joseph S. Myers