These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild UD] media-libs/libpng-1.4.5 [1.4.7] USE="static-libs* (-apng%*)" 0 kB
[ebuild R ] virtual/jpeg-0 USE="static-libs*" 0 kB
[ebuild N ] media-gfx/fbgrab-1.0 12 kB
[ebuild N ] dev-libs/klibc-1.5.12-r1 USE="-debug (-n32)" 48,765 kB
[ebuild R ] media-libs/lcms-1.19 USE="jpeg python static-libs* tiff zlib" 0 kB
[ebuild N ] media-gfx/splashutils-1.5.4.3-r3 USE="fbcondecor gpm mng png truetype -hardened" 3,939 kB
Total: 6 packages (1 downgrade, 3 new, 2 reinstalls), Size of downloads: 52,715 kB
!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:
media-libs/libpng:0
(media-libs/libpng-1.4.7, installed) pulled in by
media-libs/libpng[apng] required by (www-client/firefox-4.0.1-r1, installed)
(and 1 more with the same problem)
(media-libs/libpng-1.4.5, ebuild scheduled for merge) pulled in by
>=media-libs/libpng-1.4.3[static-libs] required by (media-gfx/splashutils-1.5.4.3-r3, ebuild scheduled for merge)
virtual/jpeg:0
(virtual/jpeg-0, installed) pulled in by
(no parents that aren't satisfied by other packages in this slot)
(virtual/jpeg-0, ebuild scheduled for merge) pulled in by
virtual/jpeg[static-libs] required by (media-gfx/splashutils-1.5.4.3-r3, ebuild scheduled for merge)
!!! Enabling --newuse and --update might solve this conflict.
!!! If not, it might at least allow emerge to give a suggestions.
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