title: Need help to install DBD::Oracle on Cygwin
body: <p>I want to install the <code>DBD::Oracle</code> module in Cygwin. I have downloaded the Oracle Instant Client (ver 12.1) at <code>C:\Oracle\instantclient_12_1</code>. I have also downloaded the SDK and SQLPlus and extracted them into the instantclient_12_1 dir. The I set my ORACLE_HOME path as <code>export ORACLE_HOME=/cygdrive/c/Oracle/instantclient_12_1</code> and LD_LIBRARY_PATH as <code>export LD_LIBRARY_PATH=/cygdrive/c/Oracle/instantclient_12_1/lib</code>. When I try to install the package, I get the following:</p>
  
  <pre><code>I'm having trouble finding your Oracle version number... trying harder
  
  WARNING: I could not determine Oracle client version so I'll just
  default to version 8.0.0.0. Some features of DBD::Oracle may not work.
  Oracle version based logic in Makefile.PL may produce erroneous results.
  You can use "perl Makefile.PL -V X.Y.Z" to specify a your client version.
  
  Oracle version 8.0.0.0 (8.0)
  DBD::Oracle no longer supports Oracle client versions before 9.2
   Try a version before 1.25 for 9 and 1.18 for 8! at Makefile.PL line 271.
  Warning: No success on command[/usr/bin/perl Makefile.PL]
  'YAML' not installed, will not store persistent state
    PYTHIAN/DBD-Oracle-1.66.tar.gz
    /usr/bin/perl Makefile.PL -- NOT OK
  Running make test
    Make had some problems, won't test
  Running make install
    Make had some problems, won't install
  </code></pre>
  
  <p>Why is the installer not able to detect the version? What should I do to install the module successfully?</p>
  
  <p>EDIT: Following a suggestion below, I tried <code>perl Makefile.PL -V 12.1.0</code>. I got the output as:</p>
  
  <pre><code>Installing on a cygwin, Ver#1.7
  Using Oracle in /cygdrive/c/Oracle/instantclient_12_1
  
              If sqlplus failed due to a linker/symbol/relocation/library error or similar problem
              then it's likely that you've not configured your environment correctly.
              Specifically, your PATH environment variable
              set to include the directory containing the Oracle libraries.
  
  Forcing Oracle version to be treated as 12.1.0
  Oracle version 12.1.0 (12.1)
  Using OCI directory 'sdk'
  
  client_version=12.1
  
  
  DEFINE= -Wall -Wno-comment -DUTF8_SUPPORT -DORA_OCI_VERSION=\"12.1.0\" -DORA_OCI_102 -DORA_OCI_112
  
  
  Checking for functioning wait.ph
  
  
  System: perl5.014004 cygwin_nt-6.1 yaakov04 1.7.18(0.26353) 2013-03-07 19:25 x86_64 cygwin
  Compiler:   gcc -O3 -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__ -fno-strict-aliasing -pipe -fstack-protector
  Linker:     /usr/bin/ld
  Sysliblist:
  
  Checking if your kit is complete...
  Looks good
  LD_RUN_PATH=/cygdrive/c/Oracle/instantclient_12_1/lib:/cygdrive/c/Oracle/instantclient_12_1/rdbms/lib
  Using DBD::Oracle 1.66.
  Using DBD::Oracle 1.66.
  Using DBI 1.623 (for perl 5.014004 on cygwin-thread-multi) installed in /usr/lib/perl5/vendor_perl/5.14/x86_64-cygwin-threads/auto/DBI/
  Generating a GNU-style Makefile
  Writing Makefile for DBD::Oracle
  Writing MYMETA.yml and MYMETA.json
  </code></pre>
  
  <p>But after <code>make, make test and make install</code>, the module is still not installed properly and I cannot run any scripts using this (<code>make test</code> returned 37/38 failed cases). I am unable to see how to proceed.</p>