i686-pc-linux-gnu-gcc -pthread -c -fno-strict-aliasing -DNDEBUG -O2 -march=athlon-xp -mtune=athlon-xp -pipe -I. -I./Include -fPIC -DPy_BUILD_CORE -o Modules/config.o Modules/config.c
In file included from Python/thread_pthread.h:24,
                 from Python/thread.c:115:
/usr/include/semaphore.h:1:36: linuxthreads/semaphore.h: No such file or directory
In file included from Python/thread.c:115:
Python/thread_pthread.h: In function `PyThread_allocate_lock':
Python/thread_pthread.h:250: error: `sem_t' undeclared (first use in this function)
Python/thread_pthread.h:250: error: (Each undeclared identifier is reported only once
Python/thread_pthread.h:250: error: for each function it appears in.)
Python/thread_pthread.h:250: error: `lock' undeclared (first use in this function)
Python/thread_pthread.h:257: error: syntax error before ')' token
Python/thread_pthread.h: In function `PyThread_free_lock':
Python/thread_pthread.h:276: error: `sem_t' undeclared (first use in this function)
Python/thread_pthread.h:276: error: `thelock' undeclared (first use in this function)
Python/thread_pthread.h:276: error: syntax error before ')' token
Python/thread_pthread.h: In function `PyThread_acquire_lock':
Python/thread_pthread.h:306: error: `sem_t' undeclared (first use in this function)
Python/thread_pthread.h:306: error: `thelock' undeclared (first use in this function)
Python/thread_pthread.h:306: error: syntax error before ')' token
Python/thread_pthread.h: In function `PyThread_release_lock':
Python/thread_pthread.h:333: error: `sem_t' undeclared (first use in this function)
Python/thread_pthread.h:333: error: `thelock' undeclared (first use in this function)
Python/thread_pthread.h:333: error: syntax error before ')' token
make: *** [Python/thread.o] Error 1
make: *** Waiting for unfinished jobs....

!!! ERROR: dev-lang/python-2.4.4 failed.
Call stack:
  ebuild.sh, line 1568:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  python-2.4.4.ebuild, line 182:   Called die

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