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--- rdtsc_ordered.o ---
cc  -march=sandybridge -mtune=sandybridge -O2 -pipe -fcolor-diagnostics -DINVARIANTS -DINVARIANT_SUPPORT -march=sandybridge  -fno-strict-aliasing -D_KERNEL -DKLD_MODULE -nostdinc  -Iinclude -include /var/tmp/tmpfs0/usr/home/koobs/repos/freebsd/ports-git/sysutils/kvmclock-kmod/work/kvmclock-0.0.0-a4/opt_global.h -I. -I/usr/src/sys -I/usr/src/sys/contrib/ck/include -fno-common  -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fdebug-prefix-map=./machine=/usr/src/sys/amd64/include -fdebug-prefix-map=./x86=/usr/src/sys/x86/include     -MD  -MF.depend.rdtsc_ordered.o -MTrdtsc_ordered.o -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse -msoft-float  -fno-asynchronous-unwind-tables -ffreestanding -fwrapv -fstack-protector -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wcast-qual -Wundef -Wno-pointer-sign -D__printf__=__freebsd_kprintf__ -Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas -Wno-error=tautological-compare -Wno-error=empty-body -Wno-error=parentheses-equality -Wno-error=unused-function -Wno-error=pointer-sign -Wno-error=shift-negative-value -Wno-address-of-packed-member -Wno-format-zero-length   -mno-aes -mno-avx  -std=iso9899:1999 -c rdtsc_ordered.c -o rdtsc_ordered.o
rdtsc_ordered.c:34:1: error: redefinition of 'rdtsc_ordered_lfence'
DEFINE_RDTSC_ORDERED();
^
include/x86/_rdtsc_ordered.h:84:5: note: expanded from macro 'DEFINE_RDTSC_ORDERED'
    DEFINE_RDTSC_ORDERED_COMMON()                                       \
    ^
include/x86/_rdtsc_ordered.h:52:5: note: expanded from macro 'DEFINE_RDTSC_ORDERED_COMMON'
    rdtsc_ordered_lfence(void)                                          \
    ^
./machine/cpufunc.h:359:1: note: previous definition is here
rdtsc_ordered_lfence(void)
^
rdtsc_ordered.c:34:1: error: redefinition of 'rdtsc_ordered_mfence'
DEFINE_RDTSC_ORDERED();
^
include/x86/_rdtsc_ordered.h:84:5: note: expanded from macro 'DEFINE_RDTSC_ORDERED'
    DEFINE_RDTSC_ORDERED_COMMON()                                       \
    ^
include/x86/_rdtsc_ordered.h:58:5: note: expanded from macro 'DEFINE_RDTSC_ORDERED_COMMON'
    rdtsc_ordered_mfence(void)                                          \
    ^
./machine/cpufunc.h:366:1: note: previous definition is here
rdtsc_ordered_mfence(void)
^
2 errors generated.
*** [rdtsc_ordered.o] Error code 1

make[2]: stopped in /var/tmp/tmpfs0/usr/home/koobs/repos/freebsd/ports-git/sysutils/kvmclock-kmod/work/kvmclock-0.0.0-a4

# OPTIMIZE ALL THE THINGS

CFLAGS=         -march=sandybridge -mtune=sandybridge -O2 -pipe -fcolor-diagnostics
CPUTYPE?=       sandybridge

.if !empty(.CURDIR:M/*/ports*/*)
SSP_CFLAGS=     -fstack-protector-strong
USE_LTO=        yes
LTO_TOOLCHAIN=  AR=llvm-ar \
                RANLIB=llvm-ranlib \
                NM=llvm-nm \
                OBJDUMP=llvm-objdump

.if defined(USE_LTO)
AR=     llvm-ar
RANLIB= llvm-ranlib
NM=     llvm-nm
OBJDUMP=llvm-objdump
LTO_TOOLCHAIN=  AR=${AR} \
                RANLIB=${RANLIB} \
                NM=${RANLIB} \
                OBJDUMP=#{OBJDUMP}

#CONFIGURE_ARGS+=       ${LTO_TOOLCHAIN}
MAKE_ENV+=              ${LTO_TOOLCHAIN}
#MAKE_ARGS+=            ${LTO_TOOLCHAIN}
.endif
.endif

# Speed
MALLOC_PRODUCTION=yes
WITHOUT_LLVM_ASSERTIONS=ses

# Hardening
WITH_PIE=yes
WITH_BIND_NOW=yes
WITH_RETPOLINE=yes
WITH_SSP=yes

# Sanitizers
#WITH_ASAN=yes
#WITH_UBSAN=yes

WITH_CCACHE_BUILD=yes
CCACHE_PREFIX=/usr/local/bin/distcc