Let me guess, you’re using GCC5 and not 4.92 or less. If you’re getting this error: dynamic_fmt.o: In function `DynamicFunc__crypt_md5_to_input_raw_Overwrite_NoLen’: /home/dave/wksp/john/src/dynamic_fmt.c:4989: undefined reference to `MD5_body_for_thread’ dynamic_fmt.o: In function `DynamicFunc__crypt_md5′: /home/dave/wksp/john/src/dynamic_fmt.c:4425: undefined reference to `MD5_body_for_thread’ dynamic_fmt.o: In function `DynamicFunc__crypt_md5_in1_to_out2′: /home/dave/wksp/john/src/dynamic_fmt.c:4732: undefined …

John-The-Ripper Jumbo 1.8.0 compile/make Fails in Fedora 25, GCC5 Read more →

Eagle CAD complains of missing libraries > sh eagle-lin64* Ensure the following libraries are available: libssl.so.1.0.0 => not found libcrypto.so.1.0.0 => not found The fix: # cd /usr/lib64 # ln -s libssl.so.10 libssl.so.1.0.0 # ln -s libcrypto.so.10 libcrypto.so.1.0.0