------- Comment #5 from jvdelisle at gcc dot gnu dot org 2010-01-01 06:35 ------- I forgot to mention I am using Cygwin 1.7, so this is beginning to look like some sort of installation issue. The gfortran version 4.5 I downloaded and installed per the gfortran wiki.
The other possibility to consider is what version of Windows you are using. I notice some reports on the Cygwin list of Vista and Windows 7 bugs. However, these bugs are being actively worked. Try using Cygwin setup.exe and select the reinstall option for gcc core and gfortran. Also install all updates that are coming in daily almost on cygwin as the bugs are getting cleared. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42568
