D8376 extended softfloat/hardfloat support, but used a macro that never
actually gets set except in libc and msun's Makefile.inc. So libc and libm
got built correctly, but any program including fenv.h itself assumed it was
on a hardfloat systen and emitted inline fpu instructions for
fedisableexcept() and friends.
Using __mips_soft_float makes everything work in all cases, since it's a
compiler-internal macro that is always set correctly for the target
PR: 217845
Submitted by: Dan Nelson <dnelson_1901@yahoo.com>
MFC after: 1 week
MDSRCS it intended to allow assembly versions of funtions with C
implementations listed in MISRCS. The selection of the correct
machdep_ldis?.c for a given architecture does not follow this pattern
and the file should be added to SRCS directly.
Reviewed by: emaste, imp, jhb
MFC after: 1 week
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9841
if not already defined. This allows building libc from outside of
lib/libc using a reach-over makefile.
A typical use-case is to build a standard ILP32 version and a COMPAT32
version in a single iteration by building the COMPAT32 version using a
reach-over makefile.
Obtained from: Juniper Networks, Inc.
