$ perl Makefile.PL 
Using DBI 1.620 (for perl 5.010001 on i686-cygwin-thread-multi-64int) installed in /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/DBI/

Configuring DBD::Oracle for perl 5.010001 on cygwin (i686-cygwin-thread-multi-64int)

Remember to actually *READ* the README file! Especially if you have any problems.

cygwin warning:
  MS-DOS style path detected: C:\oracle\product\11.1.0\db_1
  Preferred POSIX equivalent is: /cygdrive/c/oracle/product/11.1.0/db_1
  CYGWIN environment variable option "nodosfilewarning" turns off this warning.
  Consult the user's guide for more details about POSIX paths:
    http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
Installing on a cygwin, Ver#1.7
Using Oracle in C:/oracle/product/11.1.0/db_1
DEFINE _SQLPLUS_RELEASE = "1101000600" (CHAR)
Oracle version 11.1.0.6 (11.1)
Found OCI directory
Using OCI directory 'OCI'

client_version=11.1


DEFINE= -Wall -Wno-comment -DUTF8_SUPPORT -DORA_OCI_VERSION=\"11.1.0.6\" -DORA_OCI_102


Checking for functioning wait.ph


System: perl5.010001 cygwin_nt-5.1 reini 1.7.0(0.21853) 2009-12-04 17:08 i686 cygwin 
Compiler:   gcc -O3 -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__ -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
Linker:     /usr/bin/ld
Sysliblist: 


WARNING: If you have problems you may need to rebuild perl with -Uusemymalloc.
LD_RUN_PATH=C:/oracle/product/11.1.0/db_1/lib:C:/oracle/product/11.1.0/db_1/rdbms/lib
Using DBD::Oracle 1.44.
Using DBD::Oracle 1.44.
Using DBI 1.620 (for perl 5.010001 on i686-cygwin-thread-multi-64int) installed in /usr/lib/perl5/site_perl/5.10/i686-cygwin/auto/DBI/
Writing Makefile for DBD::Oracle

***  If you have problems...
     read all the log printed above, and the README and README.help.txt files.
     (Of course, you have read README by now anyway, haven't you?)