Currently, only db-4.x and db-5.0.x can be built directly from tree, due to __atomic_compare_exchange and Interix patch issues. However, with db-4.8.30 installed, the SLOT setup suggests that 5.0.32 should be able to be installed simultaneously. However, on src_install, the following error occurs: >>> Installing (1 of 1) sys-libs/db-5.0.32 * checking 44 files for package collisions * This package will overwrite one or more files that may belong to other * packages (see list below). You can use a command such as `portageq * owners / <filename>` to identify the installed package that owns a * file. If portageq reports that only one package owns a file then do * NOT file a bug report. A bug report is only useful if it identifies at * least two or more packages that are known to install the same file(s). * If a collision occurs and you can not explain where the file came from * then you should simply ignore the collision since there is not enough * information to determine if a real problem exists. Please do NOT file * a bug report at http://bugs.gentoo.org unless you report exactly which * two packages install the same file(s). See * http://wiki.gentoo.org/wiki/Knowledge_Base:Blockers for tips on how to * solve the problem. And once again, please do NOT file a bug report * unless you have completely understood the above message. * * package sys-libs/db-5.0.32 NOT merged * * Detected file collision(s): * * /opt/gentoo/usr/lib/libdb.dylib * * Searching all installed packages for file collisions... * * Press Ctrl-C to Stop * * sys-libs/db-4.8.30:4.8::gentoo_prefix * /opt/gentoo/usr/lib/libdb.dylib * * Package 'sys-libs/db-5.0.32' NOT merged due to file collisions. If * necessary, refer to your elog messages for the whole content of the * above message. !!! When you file a bug report, please include the following information: GENTOO_VM= CLASSPATH="" JAVA_HOME="" JAVACFLAGS="" COMPILER="" and of course, the output of emerge --info =db-5.0.32 ... as all buildable versions of sys-libs/db appear, on Darwin, to try to install their own version of libdb to ${EPREFIX}/usr/lib/libdb.dylib. The live filesystem contains: $ ls -l /opt/gentoo/usr/lib/libdb* -rw-r--r-- 1 portage portage 2058704 Mar 23 16:28 /opt/gentoo/usr/lib/libdb-4.8.a -rwxr-xr-x 1 portage portage 1424092 Mar 23 16:28 /opt/gentoo/usr/lib/libdb-4.8.dylib -rw-r--r-- 1 portage portage 948 Mar 23 16:28 /opt/gentoo/usr/lib/libdb-4.8.la lrwxr-xr-x 1 portage portage 11 Mar 23 16:28 /opt/gentoo/usr/lib/libdb.a -> libdb-4.8.a lrwxr-xr-x 1 portage portage 15 Mar 23 16:28 /opt/gentoo/usr/lib/libdb.dylib -> libdb-4.8.dylib -rw-r--r-- 1 portage portage 2289592 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_cxx-4.8.a -rwxr-xr-x 1 portage portage 1567852 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_cxx-4.8.dylib -rw-r--r-- 1 portage portage 976 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_cxx-4.8.la lrwxr-xr-x 1 portage portage 15 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_cxx.a -> libdb_cxx-4.8.a lrwxr-xr-x 1 portage portage 19 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_cxx.dylib -> libdb_cxx-4.8.dylib -rw-r--r-- 1 portage portage 2399128 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_stl-4.8.a -rwxr-xr-x 1 portage portage 1634800 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_stl-4.8.dylib -rw-r--r-- 1 portage portage 976 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_stl-4.8.la lrwxr-xr-x 1 portage portage 15 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_stl.a -> libdb_stl-4.8.a lrwxr-xr-x 1 portage portage 19 Mar 23 16:28 /opt/gentoo/usr/lib/libdb_stl.dylib -> libdb_stl-4.8.dylib ... so it appears that db-4.8.30 has incorrectly(?) installed unversioned symlinks: /usr/lib/libdb.a /usr/lib/libdb.dylib /usr/lib/libdb_cxx.a /usr/lib/libdb_cxx.dylib ... which prevent installation of other SLOTs.
Had the same issue on my amd64-linux system. However on my amd64 is works, so my guess is there is a bug in db_fix_so in db.eclass.
Ok, I got it! db.eclass gx86 -> prefix (pattern inside `find .. -delete`) 'libdb[1._-]*'so -> 'libdb[1._-]*'"$(get_libname)" on linux: 'libdb[1._-]*'so -> 'libdb[1._-]*'.so This doesn't match libdb.so in prefix, while it matches libdb.so on gx86. changeset: 60239:ade3af14ba84 tag: tip user: Christoph Junghans <ottxor@gentoo.org> date: Fri Aug 08 11:54:23 2014 -0600 summary: db.eclass: fix bug #519364
