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.