the attached patch fixes speech-tools-1.2.96_beta to build with GCC 4.3 by adding two missing includes. previously it worked because the headers were being pulled in by others, but there was a big header dependency cleanup in 4.3 with the result that all headers used must now be explicitly included.
Created attachment 140207 [details, diff] speech-tools-1.2.96_beta-gcc-4.3-include.patch
This has been added to portage.