There are missing includes for libsoundtouch 1.3.1-r1 and does not compile with gcc 4.3. I attach a patch to make it work. Could you bump to r2 with the patches I include? Reproducible: Always
Created attachment 149398 [details, diff] libsoundtouch-1.3.1-gcc-4.3.patch
No need to bump the ebuild as it is a compile problem.
applied, thanks. as always, please dont forget to poke upstream about it.