subtiltecomposer will fail to build from source with binutils-gold because it will be unable to link against GObject.
To reproduce the problem, just install binutils-gold, and check:
$ ld --version
GNU gold (GNU Binutils for Debian 2.20) 1.9
Copyright 2008 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.
Then, compile the program, you will see complains from the linker about missing symbols (which are provided by GObject).
See the attached patch to solve the problem, note that it's supossed to work with binutils-gold as well as with the usual binutils package.