安装mysql-python时“找不到-lssl；找不到-lcrypto”？
安装mysql-python时“找不到-lssl；找不到-lcrypto”？
提问于 2014-09-23 01:09:14
我正在努力安装mysql-python pip，无论是在系统范围内还是在安装了MariaDB 10的ubuntu14.04上的venv中。我也尝试了MariaDB 5.5，并得到了相同的错误。在安装了vanilla mysql-server的情况下，我没有这个问题。
我已经通过apt-get安装了以下内容：
- build-essential
- python-dev
- libmariadbclient-dev (这是libmysqlclient-dev)
- python-mysqldb
的MariaDB替代品
最初，我认为将其安装到venv中是一个问题，但后来我注意到mysql-python也不能在系统范围内安装。下面是我在venv中安装的cmds。
virtualenv venv
. venv/bin/activate
pip install mysql-python==1.2.5
In file included from _mysql.c:44:0:
/usr/include/mysql/my_config.h:439:0: warning: "HAVE_WCSCOLL" redefined [enabled by default]
#define HAVE_WCSCOLL
^
In file included from /usr/include/python2.7/pyconfig.h:3:0,
from /usr/include/python2.7/Python.h:8,
from _mysql.c:29:
/usr/include/x86_64-linux-gnu/python2.7/pyconfig.h:911:0: note: this is the location of the previous definition
#define HAVE_WCSCOLL 1
^x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/_mysql.o -L/usr/lib/x86_64-linux-gnu -lmariadbclient_r -lpthread -lz -lm -lssl -lcrypto -ldl -o build/lib.linux-x86_64-2.7/_mysql.so
/usr/bin/ld: cannot find -lssl
/usr/bin/ld: cannot find -lcrypto
collect2: error: ld returned 1 exit status
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Cleaning up...
Command /root/env/bin/python -c "import setuptools, tokenize;__file__='/root/env/build/mysql- python/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-EyhO2v-record/install-record.txt --single-version-externally-managed --compile --install-headers /root/env/include/site/python2.7 failed with error code 1 in /root/env/build/mysql-python
Storing debug log for failure in /root/.pip/pip.log回答 4
Stack Overflow用户
回答已采纳
发布于 2014-09-23 01:42:24
您需要安装OpenSSL的开发库。它可以是libssl-dev、libssl-devel，如果您的发行版为dev库提供了单独的包。或者安装完整的openssl包。
(venv)➜ src pip install mysql-python==1.2.5
Downloading/unpacking mysql-python==1.2.5
Downloading MySQL-python-1.2.5.zip (108kB): 108kB downloaded
Running setup.py (path:/home/braiam/src/venv/build/mysql-python/setup.py) egg_info for package mysql-python
Installing collected packages: mysql-python
Running setup.py install for mysql-python
building '_mysql' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Dversion_info=(1,2,5,'final',1) -D__version__=1.2.5 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o -DBIG_JOINS=1 -fno-strict-aliasing -g -static-libgcc -fno-omit-frame-pointer -fno-strict-aliasing
In file included from _mysql.c:44:0:
/usr/include/mysql/my_config.h:439:0: warning: "HAVE_WCSCOLL" redefined
#define HAVE_WCSCOLL
^
In file included from /usr/include/python2.7/pyconfig.h:3:0,
from /usr/include/python2.7/Python.h:8,
from _mysql.c:29:
/usr/include/x86_64-linux-gnu/python2.7/pyconfig.h:911:0: note: this is the location of the previous definition
#define HAVE_WCSCOLL 1
^
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wl,-z,relro -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/_mysql.o -L/usr/lib/x86_64-linux-gnu -lmariadbclient_r -lpthread -lz -lm -lssl -lcrypto -ldl -o build/lib.linux-x86_64-2.7/_mysql.so
Successfully installed mysql-python
Cleaning up...但是，你有两个我没有的信息，那就是：
/usr/bin/ld: cannot find -lssl
/usr/bin/ld: cannot find -lcrypto如果您使用ld -lcrypto --verbose或ld -lssl --verbose，则不会产生以下结果：
➜ src ld -lcrypto --verbose | grep succeeded
attempt to open //usr/lib/x86_64-linux-gnu/libcrypto.so succeeded
ld: warning: cannot find entry symbol _start; not setting start address
➜ src ld -lssl --verbose | grep succeeded
attempt to open //usr/lib/x86_64-linux-gnu/libssl.so succeeded
ld: warning: cannot find entry symbol _start; not setting start address因此，要解决这个问题，只需确保您已经安装了提供这两个库的libssl-dev包。
Stack Overflow用户
发布于 2017-04-21 17:25:52
我在MacOS上遇到了类似的错误，但没有提示"/usr/bin/ld: cannot find -lssl“。
求解步骤如下：
步骤1.确保您已经安装了带有自制软件的openssl。
brew install openssl步骤2.在终端中：
export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/openssl/lib/对于Linux，您还可以尝试yum install您缺少的库，并将它们添加到LIBRARY_PATH。
Stack Overflow用户
发布于 2018-11-20 20:22:34
对于Debian 9.x：
apt install libssl-dev
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/25979525
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