i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../config -I.. -I.. -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -Wall -g -march=i686 -O2 -pipe -DJACK_LOCATION=\"/usr/bin\" -I../config -I.. -I.. -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -Wall -g -march=i686 -O2 -pipe -march=i686 -MT libjack_la-midiport.lo -MD -MP -MF .deps/libjack_la-midiport.Tpo -c midiport.c  -fPIC -DPIC -o .libs/libjack_la-midiport.o
port.c: In function 'x86_3dnow_add2f':
port.c:109: error: unknown register name 'mm0' in 'asm'
port.c:120: error: unknown register name 'mm1' in 'asm'
port.c:120: error: unknown register name 'mm0' in 'asm'
port.c: In function 'x86_3dnow_copyf':
port.c:146: error: unknown register name 'mm0' in 'asm'
port.c:148: error: unknown register name 'mm1' in 'asm'
port.c:150: error: unknown register name 'mm2' in 'asm'
port.c:152: error: unknown register name 'mm3' in 'asm'
port.c:154: error: unknown register name 'mm4' in 'asm'
port.c:156: error: unknown register name 'mm5' in 'asm'
port.c:158: error: unknown register name 'mm6' in 'asm'
port.c:160: error: unknown register name 'xmm7' in 'asm'
port.c:163: error: unknown register name 'mm0' in 'asm'
port.c:165: error: unknown register name 'mm1' in 'asm'
port.c:167: error: unknown register name 'mm2' in 'asm'
port.c:169: error: unknown register name 'mm3' in 'asm'
port.c:171: error: unknown register name 'mm4' in 'asm'
port.c:173: error: unknown register name 'mm5' in 'asm'
port.c:175: error: unknown register name 'mm6' in 'asm'
port.c:177: error: unknown register name 'mm7' in 'asm'
port.c:182: error: unknown register name 'mm0' in 'asm'
port.c:191: error: unknown register name 'mm0' in 'asm'
port.c: In function 'x86_sse_copyf':
port.c:215: error: unknown register name 'xmm0' in 'asm'
port.c:217: error: unknown register name 'xmm1' in 'asm'
port.c:219: error: unknown register name 'xmm2' in 'asm'
port.c:221: error: unknown register name 'xmm3' in 'asm'
port.c:223: error: unknown register name 'xmm4' in 'asm'
port.c:225: error: unknown register name 'xmm5' in 'asm'
port.c:227: error: unknown register name 'xmm6' in 'asm'
port.c:229: error: unknown register name 'xmm7' in 'asm'
port.c:232: error: unknown register name 'xmm0' in 'asm'
port.c:234: error: unknown register name 'xmm1' in 'asm'
port.c:236: error: unknown register name 'xmm2' in 'asm'
port.c:238: error: unknown register name 'xmm3' in 'asm'
port.c:240: error: unknown register name 'xmm4' in 'asm'
port.c:242: error: unknown register name 'xmm5' in 'asm'
port.c:244: error: unknown register name 'xmm6' in 'asm'
port.c:246: error: unknown register name 'xmm7' in 'asm'
port.c:251: error: unknown register name 'xmm0' in 'asm'
port.c:260: error: unknown register name 'xmm0' in 'asm'
port.c: In function 'x86_sse_add2f':
port.c:286: error: unknown register name 'xmm0' in 'asm'
port.c:298: error: unknown register name 'xmm0' in 'asm'
make[2]: *** [libjack_la-port.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
 i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../config -I.. -I.. -D_REE
NTRANT -D_POSIX_PTHREAD_SEMANTICS -Wall -g -march=i686 -O2 -pipe -DJACK_LOCATION
=\"/usr/bin\" -I../config -I.. -I.. -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -Wal
l -g -march=i686 -O2 -pipe -march=i686 -MT libjack_la-ringbuffer.lo -MD -MP -MF 
.deps/libjack_la-ringbuffer.Tpo -c ringbuffer.c  -fPIC -DPIC -o .libs/libjack_la
-ringbuffer.o
make[2]: Leaving directory `/var/tmp/portage/jack-audio-connection-kit-0.102.20/
work/jack-audio-connection-kit-0.102.20/libjack'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/jack-audio-connection-kit-0.102.20/
work/jack-audio-connection-kit-0.102.20'
make: *** [all] Error 2

!!! ERROR: media-sound/jack-audio-connection-kit-0.102.20 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  jack-audio-connection-kit-0.102.20.ebuild, line 115:   Called die

!!! compilation failed
!!! If you need support, post the topmost build error, and the call stack if rel
evant.

!!! This ebuild is from an overlay: '/usr/portage/local/layman/pro-audio'