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Hit people over the head so they realize run-time errors of the form

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/libexec/ld-elf.so.1: Undefined symbol "_ZNSs20_S_empty_rep_storageE"
does mean they are hitting the GCC 3.4 ABI change issue.
This commit is contained in:
David E. O'Brien 2004-08-21 19:44:43 +00:00
parent b99e61353f
commit d0e54ab4ce
1 changed files with 8 additions and 5 deletions

13
UPDATING

@ -69,11 +69,14 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
compiler upgrade, there are several issues to be aware of. GCC 3.4.x compiler upgrade, there are several issues to be aware of. GCC 3.4.x
has broken C++ ABI compatibility with previous releases yet again has broken C++ ABI compatibility with previous releases yet again
and users will have to rebuild all their C++ programs with the new and users will have to rebuild all their C++ programs with the new
compiler. A new unit-at-a-time optimization mode, which is default compiler. If you are getting run-time error such as
in this compiler release, is more aggressive in removing unused /libexec/ld-elf.so.1: Undefined symbol "_ZNSs20_S_empty_rep_storageE"
static symbols. This is the likely cause of 'make buildworld' This entry does apply to you.
breakages with non-default CFLAGS where optimization level is set
to -O2 or higher. A new unit-at-a-time optimization mode, which is default in this
compiler release, is more aggressive in removing unused static
symbols. This is the likely cause of 'make buildworld' breakages
with non-default CFLAGS where optimization level is set to -O2 or higher.
With the upgrade of the system compiler, the kernel has been upgraded With the upgrade of the system compiler, the kernel has been upgraded
to match the new system compiler. This makes it impossible to build to match the new system compiler. This makes it impossible to build