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The end of the multiarch era?The end of the multiarch era?Posted Jul 13, 2006 14:09 UTC (Thu) by dmantione (guest, #4640)In reply to: The end of the multiarch era? by kleptog Parent article: The end of the multiarch era?
No, we've had a lot more breakage trouble with Glibc than with the
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The end of the multiarch era? Posted Jul 13, 2006 18:11 UTC (Thu) by kleptog (subscriber, #1183) [Link] I think you're comparing apples to oranges here. You're comparing a bug in glibc (which was fixed) to the fact that the kernel breaks backward compatability permanently in "minor" releases. devfs was removed in 2.6.13. Systems using udev won't work with kernel versions older than 2.6.15. In the middle is hotplug.
Having the same userspace work for all versions of 2.6 kernels is just about impossible.
The end of the multiarch era? Posted Jul 13, 2006 19:11 UTC (Thu) by dmantione (guest, #4640) [Link] It was not fixed, you are confusing the _res issue with the errno issue.The 1.0.10 compiler from 2003 still works on modern kernels, so we can test: daniel@laptop:~> cat test.pas program test; uses inet; begin end. daniel@laptop:~> rpm -q -a|grep glibc glibc-2.3.3-118 glibc-locale-2.3.3-118 glibc-devel-2.3.3-118 daniel@laptop:~> /usr/local/lib/fpc/1.0.10/ppc386 -n -Fu/usr/local/lib/fpc/1.0.10/units/linux/* test /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0x3a2): In function `_INET$$_$$_THOST_$$_NAMELOOKUP$STRING': : undefined reference to `h_errno' /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0x40d): In function `_INET$$_$$_THOST_$$_ADDRESSLOOKUP$THOSTADDR': : undefined reference to `h_errno' /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0x742): In function `_INET$$_$$_TNET_$$_NAMELOOKUP$STRING': : undefined reference to `h_errno' /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0x79a): In function `_INET$$_$$_TNET_$$_ADDRESSLOOKUP$LONGINT': : undefined reference to `h_errno' /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0xa6c): In function `_INET$$_$$_TSERVICE_$$_NAMELOOKUP$STRING$STRING': : undefined reference to `h_errno' /usr/local/lib/fpc/1.0.10/units/linux/inet/inet.o(.text+0xb37): more undefined references to `h_errno' follow test.pas(7) Error: Error while linking daniel@laptop:~> The issue was solved in the modern compilers by coding a netdb package in Pascal, and it never gave us trouble ever again. I think you are right about the kernel versus its system tools. However, for applications the kernel has remained remarkably compatible. We recently discovered that we were still using a system call that was replaced by a more advanced one in kernel 2.0 (we are one of the older free software projects), it still worked.
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