Problem installing image-2.4.1 after fix in bug 65843

[Terry Duell]

Hello All,
I have Octave-4.0.0 on Fedora 22, and when trying to update the image  
package got the message...

configure: error:
    Your C++ compiler (are you using GCC 5.0 or 5.1?) has a bug that
    prevents it from building the Octave Forge image package.  But you
    can fix it very easily.  See https://savannah.gnu.org/bugs/?45096
    for details on working around it.

So, went to the link, read about the fix (This issue is caused by gcc bug  
65843. To workaround this issue, open the image package tarball, and  
remove the word "const" from lines 154 and 213 of "src/imreconstruct.cc"),  
downloaded image-2.4.1.tar.gz and made the changes.
When I tried to install...

> > pkg install /home/terry/Downloads/image-2.4.1.tar.gz
configure: error:
    Your C++ compiler (are you using GCC 5.0 or 5.1?) has a bug that
    prevents it from building the Octave Forge image package.  But you
    can fix it very easily.  See https://savannah.gnu.org/bugs/?45096
    for details on working around it.

Is the advice on how to fix this problem incorrect, or something else?

Cheers,
--
Regards,
Terry Duell