Someone

emerge -pv gimp

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild     U ] media-libs/alsa-lib-1.0.16_rc2 [1.0.14_rc3] USE="midi%* -alisp% -debug -doc" ALSA_PCM_PLUGINS="adpcm%* alaw%* asym%* copy%* dmix%* dshare%* dsnoop%* empty%* extplug%* file%* hooks%* iec958%* ioplug%* ladspa%* lfloat%* linear%* meter%* mulaw%* multi%* null%* plug%* rate%* route%* share%* shm%* softvol%*" 0 kB [0]
[ebuild  N    ] media-gfx/gimp-2.4.5  USE="aalib alsa dbus hal mmx mng pdf png python svg tiff wmf (-altivec) -curl -debug -doc -exif -gnome -gtkhtml -lcms -smp -sse" 0 kB [0]

Total: 2 packages (1 upgrade, 1 new), Size of downloads: 0 kB
Portage tree and overlays:
 [0] /usr/portage