在Ubuntu 14.04 LTS上，eglibc-2.19 nptl编译失败
我正在尝试构建我下载的eglibc-2.19
apt-get source libc6 我按照INSTALL指令但在遇到nptl时遇到了这个错误，
gcc sem_init.c -c -std=gnu99 -fgnu89-inline -fno-stack-protector -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -frounding-math -g -Wstrict-prototypes -U_FORTIFY_SOURCE -I../include -I/home/gpanda/wksp/glibc/tmp2/glibc-build/nptl -I/home/gpanda/wksp/glibc/tmp2/glibc-build -I../sysdeps/unix/sysv/linux/x86_64/64/nptl -I../sysdeps/unix/sysv/linux/x86_64/64 -I../nptl/sysdeps/unix/sysv/linux/x86_64 -I../nptl/sysdeps/unix/sysv/linux/x86 -I../sysdeps/unix/sysv/linux/x86 -I../sysdeps/unix/sysv/linux/x86_64 -I../sysdeps/unix/sysv/linux/wordsize-64 -I../nptl/sysdeps/unix/sysv/linux -I../nptl/sysdeps/pthread -I../libpthread/sysdeps/pthread -I../sysdeps/pthread -I../ports/sysdeps/unix/sysv/linux -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/inet -I../nptl/sysdeps/unix/sysv -I../ports/sysdeps/unix/sysv -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64 -I../nptl/sysdeps/unix -I../ports/sysdeps/unix -I../sysdeps/unix -I../sysdeps/posix -I../libpthread/sysdeps/posix -I../nptl/sysdeps/x86_64/64 -I../sysdeps/x86_64/64 -I../sysdeps/x86_64/fpu/multiarch -I../sysdeps/x86_64/fpu -I../sysdeps/x86/fpu -I../sysdeps/x86_64/multiarch -I../nptl/sysdeps/x86_64 -I../sysdeps/x86_64 -I../sysdeps/x86 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64/wordsize-64 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I../libpthread/include -I../libpthread -I../nptl -I../ports -I.. -I../libio -I. -I../libpthread/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h -DNOT_IN_libc=1 -DIS_IN_libpthread=1 -DIN_LIB=libpthread -o /home/gpanda/wksp/glibc/tmp2/glibc-build/nptl/sem_init.o -MD -MP -MF /home/gpanda/wksp/glibc/tmp2/glibc-build/nptl/sem_init.o.dt -MT /home/gpanda/wksp/glibc/tmp2/glibc-build/nptl/sem_init.o In file included from sem_init.c:20:0: ../libpthread/include/semaphore.h:28:0: warning: "SEM_FAILED" redefined [enabled by default] #define SEM_FAILED ((void *) 0) ^ In file included from ../libpthread/include/semaphore.h:26:0, from sem_init.c:20: ../nptl/sysdeps/unix/sysv/linux/x86/bits/semaphore.h:33:0: note: this is the location of the previous definition #define SEM_FAILED ((sem_t *) 0) ^ In file included from sem_init.c:20:0: ../libpthread/include/semaphore.h:30:28: error: conflicting types for 'sem_t' typedef struct __semaphore sem_t; ^ In file included from ../libpthread/include/semaphore.h:26:0, from sem_init.c:20: ../nptl/sysdeps/unix/sysv/linux/x86/bits/semaphore.h:40:3: note: previous declaration of 'sem_t' was here } sem_t; ^ make[2]: *** [/home/gpanda/wksp/glibc/tmp2/glibc-build/nptl/sem_init.o] Error 1 make[2]: Leaving directory `/home/gpanda/wksp/glibc/tmp2/eglibc-2.19/nptl' make[1]: *** [nptl/subdir_lib] Error 2 make[1]: Leaving directory `/home/gpanda/wksp/glibc/tmp2/eglibc-2.19' make: *** [all] Error 2
我也尝试了另外14.04我的LTS，也得到了同样的错误。
uname -a Linux gpanda-ibmt420 3.13.0-65-generic #105-Ubuntu SMP Mon Sep 21 18:50:58 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
请问有人可以告诉我如何解决这个问题？
提前致谢。