dyld: DYLD_ environment variables being ignored because main executable (/usr/bin/login) is setuid or setgid

I think that ever since I installed MacPorts, I'm getting this error mesage whenever I start a new bash session. I know some other people were having this problem except the problem was with sudo and not login. I've tried commenting out all of my ~/.bash_profile to see if that would make it go away and it didn't. Then I did an in-place install of the whole OS; the problem persists.

For good measure, here's my .bash_profile file

# set the number of open files to be 1024

ulimit -S -n 1024

# Setting PATH for Python 2.7

# The orginal version is saved in .bash_profile.pysave

PATH="/Library/Frameworks/Python.framework/Versions/2.7/bin:${PATH}"

export PATH

# Setting PATH for Python 3.3

# The orginal version is saved in .bash_profile.pysave

PATH="/Library/Frameworks/Python.framework/Versions/3.3/bin:${PATH}"

export PATH

# MacPorts Installer addition on 2013-04-18_at_01:01:46: adding an appropriate PATH variable for use with MacPorts.

export PATH=/opt/local/bin:/opt/local/sbin:$PATH

# Finished adapting your PATH environment variable for use with MacPorts.

Anyways, is there a solution to this? And if not, is it something I should worry about?

Thanks.