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Fix Zstd x86 kernel build with -march=<specific>

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Disable Zstd experimental support for __BMI__ intrinsics, when built with
-march=foo supporting such intrinsics, to avoid attempting to include
immintrin.h.  If a later Zstd marks the support non-experimental, we may want
to revisit this approach.

Submitted by:	jkim
Reported by:	jkim, "Oliver Hartmann" <ohartmann AT walstatt.org>
This commit is contained in:
Conrad Meyer 2018-01-09 20:53:30 +00:00
parent da7a237fac
commit ad7a1fc6c5
1 changed files with 1 additions and 1 deletions
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2
sys/conf/kern.pre.mk
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@ -133,7 +133,7 @@ NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
-m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw}
# for ZSTD in the kernel (include zstd/lib/freebsd before other CFLAGS)
ZSTD_C= ${CC} -c -DZSTD_HEAPMODE=1 -I$S/contrib/zstd/lib/freebsd ${CFLAGS} -I$S/contrib/zstd/lib -I$S/contrib/zstd/lib/common ${WERROR} -Wno-inline -Wno-missing-prototypes ${PROF} ${.IMPSRC}
ZSTD_C= ${CC} -c -DZSTD_HEAPMODE=1 -I$S/contrib/zstd/lib/freebsd ${CFLAGS} -I$S/contrib/zstd/lib -I$S/contrib/zstd/lib/common ${WERROR} -Wno-inline -Wno-missing-prototypes ${PROF} -U__BMI__ ${.IMPSRC}
# Common for dtrace / zfs
CDDL_CFLAGS= -DFREEBSD_NAMECACHE -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common -I$S -I$S/cddl/contrib/opensolaris/common ${CFLAGS} -Wno-unknown-pragmas -Wno-missing-prototypes -Wno-undef -Wno-strict-prototypes -Wno-cast-qual -Wno-parentheses -Wno-redundant-decls -Wno-missing-braces -Wno-uninitialized -Wno-unused -Wno-inline -Wno-switch -Wno-pointer-arith -Wno-unknown-pragmas