First, arprec 2.2.16 is out. The patch for 2.2.15 does not apply to 2.2.16. Second, in src_install, the ebuild does: exeinto /usr/libexec/${PN} doexe mathtool The doexe installs the libtool wrapper script rather than the actual binary. Also, the ebuild should install a script at /usr/bin/mathtool which does something like: #!/bin/sh cd /usr/libexec/arprec && exec ./mathtool (The mathtool program will only run if the two .dat files also installed into /usr/libexec/${PN} are present in its $CWD, which one expects is why the ebuild puts them in libexec.)
+*arprec-2.2.16 (11 Dec 2012) + + 11 Dec 2012; Sébastien Fabbro <bicatali@gentoo.org> +arprec-2.2.16.ebuild, + -arprec-2.2.13.ebuild, -arprec-2.2.15.ebuild, + -files/arprec-2.2.15-fix-enabling.patch: + Version bump. Patch applied upstream. Fix mathtool according to bug #446418 + thanks to James Cloos +