osx - Qt OS 10.6 build not running on OS 10.5 and less -

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this issue has been queried twice before separate people, there have been no answers.

so, i'm posting, again:

building qt4.7 on 10.6.6, xcode 3.2.5, g++-4.2 flag '-mmacosx-version-min=10.4', i'm presuming taking care of dirty work, underneath.

when bring on 10.5, crashes right out of box this:

 <... process identification info removed ...>  exception type:  exc_breakpoint (sigtrap) exception codes: 0x0000000000000002, 0x0000000000000000 crashed thread:  0  dyld error message:   symbol not found: __zst16__ostream_inserticst11char_traitsiceerst13basic_ostreamit_t0_es6_pks3_i   referenced from: /applications/myapp.app/contents/macos/myapp   expected in: /usr/lib/libstdc++.6.dylib

has come resolution on this?

you need specify -sdk /developer/sdks/macosx10.4u.sdk in configure line when building qt itself. minimum version option trigger pre-processor macros limit apis 10.4 level.

note may stop building 64-bit binaries. not sure.


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