Question: Thanks to the guide on How to compile and install Python with OpenSSL Support. However, the installation failed with an error message error while loading shared libraries: libssl.so.1.0.0 cannot open shared object file during make. According to the installation guide, I installed OpenSSL and then edited Setup.dist file to refer the OpenSSL installation path. The OpenSSL installation directory is /usr/local/openssl.
Below is the complete error message:
[Python-3.5] $ make ./python: error while loading shared libraries: libssl.so.1.0.0: cannot open shared object file: No such file or directory make: *** [pybuilddir.txt] Error 127
Please suggest a solution.
Answer:
There are few things that you might need to check:
1) OpenSSL developer package will provide all necessary SSL libraries. Make sure openssl-devel package is installed as shown below:
# rpm -qa |grep openssl openssl-devel-1.0.1e-42.el6_7.2.x86_64 openssl-1.0.1e-42.el6_7.2.x86_64
If rpm -qa lists openssl-devel, then you mostly probably have libssl libraries installed. If not, you need to install it first.
# yum install openssl-devel
2) Check for libssl and libcrypto shared object files: Look out for the lib folder under OpenSSL installation directory (in case of yum install, the libraries might be present in /usr/lib or /usr/lib64). For example, if the OpenSSL is installed in /usr/local/openssl, then you will find lib folder containing library files as shown below:
Sample output:
# cd /usr/local/openssl/lib # ls engines libcrypto.so libssl.a libssl.so.1.0.0 libcrypto.a libcrypto.so.1.0.0 libssl.so pkgconfig
Lookout for the libssl and libcrypto shared object files.
3) Set library to the path: You might have the libraries installed, but may not be in the path. Add OpenSSL libraries to ld.so.conf file as shown below:
# vim /etc/ld.so.conf
Add below line to the end of the file:
/usr/local/openssl/lib/
Note: The path might vary depending upon your installation.
# ldconfig
Hope it works.
