You receive this bug because this package does not respect my system's AR (x86_64-pc-linux-gnu-ar) and calls directly /usr/bin/ar The possible solutions to fix this issue are: 1)Fix the buildsystem, if you can; 2)inherit toolchain-funcs and use tc-export AR 3)inherit toolchain-funcs and use emake AR="$(tc-getAR)" From the build log: ar r ../../tools/lib/libtools.a Break.o RandNum.o MatVec.o TrackBall.o EllInteg.o Callback.o Tree.o Hashtab.o Linlist.o RectSet.o Grid.o StrTab.o DStr.o StrMatch.o FileName.o LeastSqr.o CubicSpline.o Sphere.o IsoSurface.o SurfaceDots.o SurfaceSolid.o SurfCheck.o Potential.o FitCylinder.o MapCoord.o PrincipAxis.o SingVal.o Cluster.o SimulAnneal.o
+*molmol-2k_p2-r4 (02 May 2013) + + 02 May 2013; Justin Lecher <jlec@gentoo.org> +molmol-2k_p2-r4.ebuild: + Respect AR, #468178 +