People porting FreeBSD to new architectures ought not have to

implement a deprecated FPU control interface in addition to the
standard one.  To make this clearer, further deprecate ieeefp.h
by not declaring the function prototypes except on architectures
that implement them already.

Currently i386 and amd64 implement the ieeefp.h interface for
compatibility, and for fp[gs]etprec(), which doesn't exist on
most other hardware.  Powerpc, sparc64, and ia64 partially implement
it and probably shouldn't, and other architectures don't implement it
at all.

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/mips/include/ieeefp.h b/sys/mips/include/ieeefp.h
index c7d9244ae420..fb6c21a47c43 100644
--- a/sys/mips/include/ieeefp.h
+++ b/sys/mips/include/ieeefp.h
@@ -11,6 +11,8 @@
 #ifndef _MACHINE_IEEEFP_H_
 #define	_MACHINE_IEEEFP_H_
 
+/* Deprecated historical FPU control interface */
+
 typedef int fp_except;
 typedef int fp_except_t;