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Removing version information caused problems when relinking with shared
libraries depending on libxml2. It also broke the ABI on Android.
Revert libxml2.syms to the 2.10.0 version.
Fixes#526.
The version script didn't account for symbols disabled by configuration
options. This has caused problems on some OSs in the past and breaks
lld 16 which enables --no-undefined-version by default.
A proper fix would be rather involved, so we simply remove all symbols
from the version script. This is an ELF-only feature and libxml2 never
made use of symbol versioning anyway. Ultimately, this removes the need
for a lot of bookkeeping without tangible benefits.
We have to keep the version nodes to avoid errors when running binaries
linked against older versions of libxml2.
Fixes#473.
As suggested by Andrew W. Nosenko:
Proposal: expose the new xmlBufShrink() to the "public" API for
compatibility with xmlBufUse().
Reason: the following scenario:
1. Read something into xmlParserInputBuffer (e.g. using
xmlParserInputBufferRead())
2. Extract content through xmlBufContent()
3. Extract content length through xmlBufUse(). Result have type
'size_t'.
4. Use this content
5. Now, you need to shrink the buffer. How to do it? Doing that
through legacy xmlBufferShrink() is unsafe because it uses 'unsigned
int' and the whole point of introducing the new API was handling the
cases, when 'unsigned int' is not enough. Therefore, need to use the
new xmlBufShrink(). But it is "private".
Therefore, I propose to expose the new xmlBufShrink() in the same way,
as xmlBufContent() and xmlBufUse() are exposed.
* doc/Makefile.am: make the check for symbols pbm a make api failure
* doc/symbols.xml: added xmlXIncludeProcessTreeFlagsData
* doc//* elfgcchack.h libxml2.syms testapi.c: regenerated
* doc/symbols.xml: new global data xmlStructuredErrorContext
* doc/checkapisym.xsl: slightly improve output
* doc/* libxml2.syms win32/libxml2.def.src: regenerated the API
* doc/symbols.xml: the source for all exported symbols
* doc/checkapisym.xsl: used to check libxml2-api.xml against exported
symbols
* doc/syms.xsl: stylesheet regenerating libxml2.syms from symbols.xml
* doc/Makefile.am libxml2.syms: add the new rules and the generated
version
* libxml2.syms: the symbols with history, going back to 2.4.30
* Makefile.am configure.in: linking flags detection and use
* parser.c tree.c valid.c xpointer.c: various cleanup of functions
which could be made static or simply discarded, not that many
