Hit people over the head so they realize run-time errors of the form
/libexec/ld-elf.so.1: Undefined symbol "_ZNSs20_S_empty_rep_storageE" does mean they are hitting the GCC 3.4 ABI change issue.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=134129
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UPDATING
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UPDATING
@ -69,11 +69,14 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
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compiler upgrade, there are several issues to be aware of. GCC 3.4.x
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has broken C++ ABI compatibility with previous releases yet again
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and users will have to rebuild all their C++ programs with the new
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compiler. A new unit-at-a-time optimization mode, which is default
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in this compiler release, is more aggressive in removing unused
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static symbols. This is the likely cause of 'make buildworld'
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breakages with non-default CFLAGS where optimization level is set
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to -O2 or higher.
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compiler. If you are getting run-time error such as
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/libexec/ld-elf.so.1: Undefined symbol "_ZNSs20_S_empty_rep_storageE"
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This entry does apply to you.
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A new unit-at-a-time optimization mode, which is default in this
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compiler release, is more aggressive in removing unused static
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symbols. This is the likely cause of 'make buildworld' breakages
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with non-default CFLAGS where optimization level is set to -O2 or higher.
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With the upgrade of the system compiler, the kernel has been upgraded
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to match the new system compiler. This makes it impossible to build
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