brew doctor output associated with https://gist.github.com/1358666

gistfile1.txt

/usr/local/Library/Formula/pdf2svg.rb:6: warning: parenthesize argument(s) for future version
Unbrewed dylibs were found in /usr/local/lib.

If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libcdt.4.0.0.dylib
    /usr/local/lib/libcgraph.4.0.0.dylib
    /usr/local/lib/libfontforge.1.0.0.dylib
    /usr/local/lib/libgdraw.4.0.8.dylib
    /usr/local/lib/libgioftp.1.0.0.dylib
    /usr/local/lib/libgraph.4.0.0.dylib
    /usr/local/lib/libgunicode.3.0.1.dylib
    /usr/local/lib/libgutils.1.0.3.dylib
    /usr/local/lib/libgvc.5.0.0.dylib
    /usr/local/lib/libpathplan.4.0.0.dylib

Unbrewed static libraries were found in /usr/local/lib.

If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected static libraries:
    /usr/local/lib/libruby-static.a

Unbrewed .pc files were found in /usr/local/lib/pkgconfig.

If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected .pc files:
    /usr/local/lib/pkgconfig/fontforge.pc
    /usr/local/lib/pkgconfig/libcdt.pc
    /usr/local/lib/pkgconfig/libcgraph.pc
    /usr/local/lib/pkgconfig/libgraph.pc
    /usr/local/lib/pkgconfig/libgvc.pc
    /usr/local/lib/pkgconfig/libpathplan.pc
    /usr/local/lib/pkgconfig/ruby-1.9.pc

Unbrewed .la files were found in /usr/local/lib.

If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected .la files:
    /usr/local/lib/libcdt.la
    /usr/local/lib/libcgraph.la
    /usr/local/lib/libfontforge.la
    /usr/local/lib/libgdraw.la
    /usr/local/lib/libgioftp.la
    /usr/local/lib/libgraph.la
    /usr/local/lib/libgunicode.la
    /usr/local/lib/libgutils.la
    /usr/local/lib/libgvc.la
    /usr/local/lib/libpathplan.la