i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../config -I../.. -I../.. -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -Wall -g -O2 -march=i686 -pipe -I/opt/oss/include -I../../config -I../.. -I../.. -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -Wall -g -O2 -march=i686 -pipe -march=i686 -MT oss_driver.lo -MD -MP -MF .deps/oss_driver.Tpo -c oss_driver.c  -fPIC -DPIC -o .libs/oss_driver.o
In file included from oss_driver.c:53:
/usr/include/semaphore.h:1:36: linuxthreads/semaphore.h: No such file or directory
In file included from oss_driver.c:66:
oss_driver.h:93: error: syntax error before "sem_t"
oss_driver.h:93: warning: no semicolon at end of struct or union
oss_driver.h:94: warning: type defaults to `int' in declaration of `oss_driver_t'
oss_driver.h:94: warning: data definition has no type or storage class
oss_driver.c:155: error: syntax error before '*' token
oss_driver.c: In function `set_period_size':
oss_driver.c:158: error: `driver' undeclared (first use in this function)
oss_driver.c:158: error: (Each undeclared identifier is reported only once
oss_driver.c:158: error: for each function it appears in.)
oss_driver.c:158: error: `new_period_size' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:170: error: syntax error before '*' token
oss_driver.c: In function `update_times':
oss_driver.c:172: error: `driver' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:186: error: syntax error before '*' token
oss_driver.c: In function `driver_cycle':
oss_driver.c:188: error: `driver' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:341: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_attach':
oss_driver.c:348: error: `driver' undeclared (first use in this function)
oss_driver.c:348: error: `engine' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:397: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_detach':
oss_driver.c:401: error: `driver' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:432: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_start':
oss_driver.c:437: error: `driver' undeclared (first use in this function)
oss_driver.c:677: warning: implicit declaration of function `sem_init'
oss_driver.c:709: warning: implicit declaration of function `sem_post'
oss_driver.c: At top level:
oss_driver.c:720: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_stop':
oss_driver.c:724: error: `driver' undeclared (first use in this function)
oss_driver.c:743: warning: implicit declaration of function `sem_destroy'
oss_driver.c: At top level:
oss_driver.c:776: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_read':
oss_driver.c:783: error: `driver' undeclared (first use in this function)
oss_driver.c:784: error: `nframes' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:819: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_write':
oss_driver.c:826: error: `driver' undeclared (first use in this function)
oss_driver.c:827: error: `nframes' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:862: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_null_cycle':
oss_driver.c:864: error: `driver' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:876: error: syntax error before '*' token
oss_driver.c: In function `oss_driver_bufsize':
oss_driver.c:878: error: `driver' undeclared (first use in this function)
oss_driver.c:880: error: `nframes' undeclared (first use in this function)
oss_driver.c: At top level:
oss_driver.c:894: error: syntax error before '*' token
oss_driver.c: In function `synchronize':
oss_driver.c:896: error: `driver' undeclared (first use in this function)
oss_driver.c: In function `io_thread':
oss_driver.c:917: error: `driver' undeclared (first use in this function)
oss_driver.c:917: error: syntax error before ')' token
oss_driver.c:919: warning: implicit declaration of function `sem_wait'
oss_driver.c: In function `driver_initialize':
oss_driver.c:1098: error: `driver' undeclared (first use in this function)
oss_driver.c:1100: error: syntax error before ')' token
oss_driver.c: In function `driver_finish':
oss_driver.c:1253: error: `oss_driver' undeclared (first use in this function)
oss_driver.c:1253: error: syntax error before ')' token
oss_driver.c:1255: error: syntax error before ')' token
make[3]: *** [oss_driver.lo] Error 1
make[3]: Leaving directory `/var/tmp/portage/media-sound/jack-audio-connection-kit-0.102.20/work/jack-audio-connection-kit-0.102.20/drivers/oss'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/var/tmp/portage/media-sound/jack-audio-connection-kit-0.102.20/work/jack-audio-connection-kit-0.102.20/drivers'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/media-sound/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 1568:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  jack-audio-connection-kit-0.102.20.ebuild, line 103:   Called die

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