Both of the other ebuilds for alsa-utils do not exhibit this issue. Emerging with CFLAGS=-O works fine. Emerge output, emerge info and patch to follow.
Created attachment 77922 [details] Output from `USE=nls CFLAGS=-O0 emerge =media-sound/alsa-utils-1.0.11_rc2`
Created attachment 77923 [details] Output from `emerge info`
*** This bug has been marked as a duplicate of 119287 ***
Created attachment 77924 [details, diff] A patch for the ebuild