[ET Trac] [Einstein Toolkit] #1859: use OPENSSL_DIR variable instead of SSL_DR

[Einstein Toolkit]

#1859: use OPENSSL_DIR variable instead of SSL_DR
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  Reporter:  rhaas       |       Owner:                     
      Type:  defect      |      Status:  new                
  Priority:  minor       |   Milestone:                     
 Component:  SimFactory  |     Version:  development version
Resolution:              |    Keywords:                     
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Comment (by eschnett):

 The library is called "OpenSSL". There is no generic "SSL" library,
 comparable e.g. to a "LAPACK". Alternative libraries have different names,
 e.g. "mbedTLS", with different APIs.

 We also always use configuration variable names that have the thorn name
 as prefix.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1859#comment:2>
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