This is ticket http://trac.sagemath.org/ticket/18892 and it has been solved 
earlier
today and incidentally in April in sage-on-gentoo.

You can just copy the patch 
https://raw.githubusercontent.com/cschwan/sage-on-gentoo/master/sci-mathematics/singular/files/singular-3.1.7-use_cxx_for_linking.patch
in build/pkgs/singular/patches/ and you should be good to go.

François

> On 14/07/2015, at 12:53, Brenton Horne <brentonhorn...@gmail.com> wrote:
> 
> Hi, 
> 
> I attempted to build Sage 6.8.beta8 by cloning the git SageMath repo, i.e., 
> running:
> git clone git://git.sagemath.org/sage.git
> then running:
> cd sage
> make
> 
> This runs without issue until the
> ~/sage
> directory reaches 1.5 GB in size then I received the error:
> make[2]: *** 
> [/home/fusion809/sage/local/var/lib/sage/installed/singular-3.1.7p1.p0] Error 
> 1
> make[2]: Leaving directory '/home/fusion809/sage/build'
> Makefile:418: recipe for target 'all' failed
> make[1]: *** [all] Error 2
> make[1]: Leaving directory '/home/fusion809/sage/build'
> 
> 
> real 6m16.285s
> user 5m44.756s
> sys 0m19.516s
> ***************************************************************
> Error building Sage.
> 
> 
> The following package(s) may have failed to build:
> 
> 
> package: singular-3.1.7p1.p0
> log file: /home/fusion809/sage/logs/pkgs/singular-3.1.7p1.p0.log
> build directory: 
> /home/fusion809/sage/local/var/tmp/sage/build/singular-3.1.7p1.p0
> 
> 
> The build directory may contain configuration files and other potentially
> helpful information. WARNING: if you now run 'make' again, the build
> directory will, by default, be deleted. Set the environment variable
> SAGE_KEEP_BUILT_SPKGS to 'yes' to prevent this.
> 
> 
> Makefile:19: recipe for target 'build' failed
> make: *** [build] Error 1
> 
> I have attempted to build sage 6.7 from source tarballs and I received the 
> same error, so I doubt it's unique to git. My operating system is 32 bit 
> Ubuntu 15.04 (although I have switched to a 4.0.0 kernel, but I experienced 
> this same error before I switched the kernel too). My RAM is 3.8 GB, CPU is 4 
> x Intel Core (TM) i5 CPU M 460 @ 2.53GHz. 
> 
> Thanks for your time,
> Brenton
> 
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