[oi-dev] libxml2 mapfile and symbol removal

[Tim Mooney]

In regard to: Re: [oi-dev] libxml2 mapfile and symbol removal, Richard Lowe...:

> If they were public they really should stick around. I have no idea how
> best you could do that though.  Did the soname change so both versions
> could be shipped?

Hey Rich, thanks for the response.  It's appreciated.

The soname did not change; it's still libxml2.so.2

 	libtool: link: /usr/gcc/7/bin/gcc -shared  -fPIC -DPIC -Wl,-z -Wl,text
 	-Wl,-h -Wl,libxml2.so.2 -o .libs/libxml2.so.2.9.12  .libs/SAX.o
 	.libs/entities.o [and so on]

The only mention of it in the libxml2 "news" is this line in the "Cleanup"
section for 2.9.10:

 	Disable xmlExp regex code (Nick Wellnhofer),

Tim

> On Sat, Nov 13, 2021, 22:25 Tim Mooney via oi-dev <oi-dev at openindiana.org>
> wrote:
>
>>
>> All-
>>
>> I'm investigating how difficult it might be to update libxml2 and libxslt
>> to current latest versions.
>>
>> Unfortunately, libxml2 removed a bunch of formerly public symbols at
>> version 2.9.10:
>>
>>         # emptyExp; removed in 2.9.10
>>         # forbiddenExp; removed in 2.9.10
>>         # xmlExpCtxtNbCons; removed in 2.9.10
>>         # xmlExpCtxtNbNodes; removed in 2.9.10
>>         # xmlExpDump; removed in 2.9.10
>>         # xmlExpExpDerive; removed in 2.9.10
>>         # xmlExpFreeCtxt; removed in 2.9.10
>>         # xmlExpFree; removed in 2.9.10
>>         # xmlExpGetLanguage; removed in 2.9.10
>>         # xmlExpGetStart; removed in 2.9.10
>>         # xmlExpIsNillable; removed in 2.9.10
>>         # xmlExpMaxToken; removed in 2.9.10
>>         # xmlExpNewAtom; removed in 2.9.10
>>         # xmlExpNewCtxt; removed in 2.9.10
>>         # xmlExpNewOr; removed in 2.9.10
>>         # xmlExpNewRange; removed in 2.9.10
>>         # xmlExpNewSeq; removed in 2.9.10
>>         # xmlExpParse; removed in 2.9.10
>>         # xmlExpRef; removed in 2.9.10
>>         # xmlExpStringDerive; removed in 2.9.10
>>         # xmlExpSubsume; removed in 2.9.10
>>
>> At a minimum, that likely means that nearly everything that depends
>> upon libxml2 will need a rebuild.
>>
>> My question is about what should be done to the mapfile we use with
>> libxml2.  Most of these symbols are marked "global" at
>>
>>         SYMBOL_VERSION SUNW_1.6 {
>>
>> Do I just comment them out of that block, or is there some other better
>> way to handle these now-removed symbols?
>>
>> Tim
>> --
>> Tim Mooney                                             Tim.Mooney at ndsu.edu
>> Enterprise Computing & Infrastructure /
>> Division of Information Technology    /                701-231-1076 (Voice)
>> North Dakota State University, Fargo, ND 58105-5164
>>
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>

-- 
Tim Mooney                                             Tim.Mooney at ndsu.edu
Enterprise Computing & Infrastructure /
Division of Information Technology    /                701-231-1076 (Voice)
North Dakota State University, Fargo, ND 58105-5164