用google-perftools编译Python 2.7.2

Question

我有一个64位的Debian Squeeze操作系统。我想用Python和Google的性能工具（google-perftools）。为此，我自己编译了Python 2.7.2，并加上了“-lctmalloc”这个选项。但是我遇到了一些错误。

1. 我安装了libuwind，因为在使用64位时，google-perftools需要这个包。
2. 我安装了所有需要的包：

步骤：

> sudo apt-get -y install build-essential 
> sudo apt-get -y install zlib1g-dev libxml2-dev libxslt1-dev libssl-dev libncurses5-dev  
> sudo apt-get -y install libreadline6-dev autotools-dev autoconf automake libtool 
> sudo apt-get -y install libsvn-dev mercurial subversion git-core 
> sudo apt-get -y install libbz2-dev libgdbm-dev sqlite3 libsqlite3-dev 
> sudo apt-get -y install curl libcurl4-gnutls-dev 
> sudo apt-get -y install libevent-dev libev-dev librrd4 rrdtool 
> sudo apt-get -y install uuid-dev libdb4.8-dev memcached libmemcached-dev  
> sudo apt-get -y install libmysqlclient-dev libexpat1-dev 
> sudo apt-get -y install google-perftool 
> cd python 
> export CFLAGS='-ltcmalloc' 
> ./configure 
> make

这就是我得到的结果：

gcc  -Xlinker -export-dynamic -o python \
            Modules/python.o \
            libpython2.7.a -ldl  -lutil   -lm  
libpython2.7.a(posixmodule.o): In function `posix_tmpnam':
/home/toto/python272/Python-2.7.2/./Modules/posixmodule.c:7370: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
libpython2.7.a(posixmodule.o): In function `posix_tempnam':
/home/toto/python272/Python-2.7.2/./Modules/posixmodule.c:7317: warning: the use of `tempnam' is dangerous, better use `mkstemp'
libpython2.7.a(thread.o): In function `_pythread_pthread_set_stacksize':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:491: undefined reference to `pthread_attr_setstacksize'
libpython2.7.a(thread.o): In function `PyThread_release_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:346: undefined reference to `sem_post'
libpython2.7.a(thread.o): In function `PyThread_acquire_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:323: undefined reference to `sem_trywait'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:321: undefined reference to `sem_wait'
libpython2.7.a(thread.o): In function `PyThread_free_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:292: undefined reference to `sem_destroy'
libpython2.7.a(thread.o): In function `PyThread_allocate_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:268: undefined reference to `sem_init'
libpython2.7.a(thread.o): In function `PyThread_start_new_thread':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:183: undefined reference to `pthread_attr_setstacksize'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:193: undefined reference to `pthread_create'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:209: undefined reference to `pthread_detach'
libpython2.7.a(thread.o): In function `PyThread_acquire_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:321: undefined reference to `sem_wait'
libpython2.7.a(thread.o): In function `PyThread_release_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:346: undefined reference to `sem_post'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:346: undefined reference to `sem_post'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:346: undefined reference to `sem_post'
libpython2.7.a(thread.o): In function `PyThread_allocate_lock':
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:268: undefined reference to `sem_init'
/home/toto/python272/Python-2.7.2/Python/thread_pthread.h:268: undefined reference to `sem_init'
collect2: ld returned 1 exit status
make: *** [python] Error 1
You have new mail in /var/mail/root

我真的不明白这个错误，因为当我不加CFLAGS='-ltcmalloc'时，我可以顺利编译。谢谢你的帮助。

Answer 1

使用 LDFlags

-ltcmalloc

这需要支持 POSIX 线程。

-lpthread