db46: Cannot install with build_arch i386 on 64-bit Mac OS X 10.6

[joseph.spiros@…]

After a fresh installation of MacPorts 1.8.0, I uncommented and set the build_arch setting in macports.conf to "i386" on my 64-bit capable system (for compatibility with wine) prior to the installation of any ports.

Upon attempting to install git-core+svn, db46 fails. It seems that it is being built as 64-bit despite the build_arch setting.

Attached log is the result of running port -d install db46 after running port clean --all -f db46 following initial failure. The result of running file /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_db46/work/db-4.6.21/build_unix/.libs/libdb-4.6.dylib:

/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_db46/work/db-4.6.21/build_unix/.libs/libdb-4.6.dylib: Mach-O 64-bit dynamically linked shared library x86_64

[joseph.spiros@…]

Output of port -d install db46 with build_arch set to i386

[toby@…]

Yeah, build_arch isn't going to be all that reliable...

[blair@…]

This is not a configuration I run db46 in, so I'll need a patch to implement the behavior you're looking for.

Regards, Blair

[snc@…]

Would building universal help, setting it for i386?

[ryandesign@…]

Replying to snc@…:

Would building universal help, setting it for i386?

I believe so, because the muniversal portgroup, which db46 uses, uses -m64 and -m32 instead of -arch flags when possible, and db46 seems to respond well to this. But building a port "universal" for a single architecture is a hack. The universal variant is designed for building for multiple architectures. So it would make most sense to build db46 (and your other ports) universal for x86_64 and i386, which works for me on Snow Leopard.

[janngobble@…]

Compile error for db46 + universal

[janngobble@…]

+universal does not compile for me on a clean install of MacPorts 1.8

db46_universal_compile_error.txt attached to ticket.

Jann

[me@…]

I can confirm that adding -m32 to LDFLAGS compiles this package for me with 1.8.1 on 10.6.1

[jmr@…]

Superseded by #21898.