master build issue

[Neil Jerram]

I built and installed libunistring this evening, to /usr/local, and
now ./configure is failing for me at:

checking size of float... configure: error: cannot compute sizeof (float)

which is because (from config.log):

configure:52553: ccache gcc -o conftest -g -O2   conftest.c -L/usr/local/lib 
-lunistring -R/usr/local/lib -lgmp -lcrypt -lm -lltdl  >&5
gcc: unrecognized option '-R/usr/local/lib'

My GCC is version 4.3.2, so pretty recent.

Ludo, Andy, I'm wondering why this isn't a problem for you too.  Is it
because you've installed libunistring in /usr, perhaps?

Regards,
        Neil