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Description of problem:
During regression testing I found that there seems to be a typo in openssl X509_subject_name_hash_old symbol name. According to readelf the symbol ends with _ol not _old:

# readelf --symbols /lib64/libcrypto.so.10 | grep X509_subject_name_hash_
  1341: 0000004b177f399c    26 FUNC    GLOBAL DEFAULT   12 X509_subject_name_hash_ol@@libcrypto.so.10


Version-Release number of selected component (if applicable):
openssl-1.0.1c-1.el7

How reproducible:
100%

Steps to Reproduce:
1. readelf --symbols /lib64/libcrypto.so.10 | grep X509_subject_name_hash_old 
  
Actual results:
No symbol found

Expected results:
X509_subject_name_hash_old exists and works well

Additional info:

The names are truncated in the readelf output.

That is possible, anyway the function seems to be missing. Had it been deprecated??

/bin/ld: /tmp/cc6Ic736.o: undefined reference to symbol 'X509_subject_name_hash_old@@libcrypto.so.10'
/bin/ld: note: 'X509_subject_name_hash_old@@libcrypto.so.10' is defined in DSO /lib64/libcrypto.so.10 so try adding it to the linker command line
/lib64/libcrypto.so.10: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
:: [   FAIL   ] :: Running 'gcc -lssl -o./bz568395 bz568395.c' (Expected 0, got 1)

That's a buggy gcc command line. You need -lcrypto.

Thanks!