Post #3574249

The issue is more than this one bug, if you're dealing with this bug, this is how you fix it, as it starts at the very beginning of the non-Sun compiler stack: - Don't use tgcware or sunfreeware packages. They're all poisoned in this way, and it causes issues compiling just about everything later down the line. Start with SUNWspro. - Build binutils 2.13 before gcc 2.x, which is required for 3.x or higher anyway. SUNWspro will just barely suffice for this on Solaris 7. - Build gcc 2.95.3, ENFORCE THE GNU BINUTILS. The docs say to use Solaris as+ld, this is a trap. Don't fall for it! Never use them unless there's strictly no other option. - Build binutils 2.15, then gcc 3.2.3 (do not bootstrap.) Because gcc 2.95.3 isn't poisoned by the system linker, you'll be OK. - As gcc 3.2.3 cannot be bootstrapped with 2.95.3 (despite that being the opposite of every doc in the universe about gcc being forced to bootstrap, gcc 2.95.3 is not capable of doing this) remove the GCC 2.x specific include dir in your prefix (3.2.3 won't do this itself) and immediately rebuild gcc 3.2.3 (with bootstrap-lean) to remove errant C++ behavior for later. - Build binutils 2.17. 2.15 will build gcc 4.x and beyond, but this breaks libstdc++ permanently as it'll version symbols that do not exist. If "floor@@SUNW_1.1" symbol refs exist in a binary, you've hit this bug. - Build gcc 4.2.4, disable bootstrap. (It will bootstrap anyway, but if you try to enable it, it'll break. This occurs with make 3.7 through 4.4, so it's a logic bug in gcc's autotools set.) As before, remove all 3.2.3-specific include directories (and $PREFIX/i386-pc-solaris2.7/assert.h, due to a CFLAGS bug in 4.2.4 through 4.6, and probably much further) and then immediately rebuild it with itself. (Again, disable bootstrap, it will anyway.) At this point, if libstdc++.so has no references to __eprintf or floor@@SUNW_1.1, you're in the clear. More testing is needed to see if this persists through 4.6.x, the last versions with any measure of sol7 support, but i'll keep people posted.