Boost universal variant broken for GCC

[barracuda156]

The current realization of universal variant of Boost is broken with GCC. Since it requires newer GCC than Apple, muniversal PG has to be used (at least for GCC builds). However even adding PG does not help, single configure done (for ppc), and double archs are passed on command line, which obviously cannot work. Like this:

    "/opt/local/bin/g++-mp-11"   -fvisibility-inlines-hidden -Os -std=gnu++11 -D_GLIBCXX_USE_CXX11_ABI=0 -arch ppc -arch ppc64  -fPIC -O3 -Wall -fvisibility=hidden -dynamic -gdwarf-2 -fexceptions -Wno-inline -ftemplate-depth-255 -fvisibility=hidden -fvisibility-inlines-hidden -DBOOST_ALL_NO_LIB=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DNDEBUG  -I"."  -c -o "bin.v2/libs/serialization/build/darwin-11.3.0/release/address-model-32_64/pch-off/threading-multi/visibility-hidden/basic_iarchive.o" "libs/serialization/src/basic_iarchive.cpp"

g++-mp-11: warning: ppc64 conflicts with ppc (arch flags ignored)

[kencu (Ken)]

boost is it's own very complicated animal.

look through the source for "jam" files and look at the Portfile for these are hacked to do MacPorts' bidding.

It is frankly very complicated sometimes to make boost obey.

Only someone running such a system would have any chance of getting it to work, so most others will be unlikely to help.

I never tried building it ppc/ppc64.

It may only be fixed when newer gcc versions have a newer driverdriver.c updated to work like clang works.

[barracuda156]

Replying to kencu:

boost is it's own very complicated animal.

look through the source for "jam" files and look at the Portfile for how these are hacked to do MacPorts' bidding.

It is frankly very complicated sometimes to make boost obey.

Only someone running such a system would have any chance of getting it to work, so most others will be unlikely to help.

I never tried building it ppc/ppc64.

It may only be fixed when newer gcc versions have a newer driverdriver.c updated to work like clang works.

Will you help me to work on driverdriver.c? :)

We know Iain is too busy, so I cannot bother his too much even with GCC-related matters.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In c8c31e5a15cc39ffc76898f5da65f39decf783da/macports-ports (master):

boost: enable universal build except for ppc

See #66006