Add symbol versioning to libxml2 shared libs
* 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
diff --git a/Makefile.am b/Makefile.am
index 236c26b..fc4601b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -18,7 +18,16 @@
lib_LTLIBRARIES = libxml2.la
libxml2_la_LIBADD = @THREAD_LIBS@ @Z_LIBS@ $(ICONV_LIBS) @M_LIBS@ @WIN32_EXTRA_LIBADD@
-libxml2_la_LDFLAGS = @CYGWIN_EXTRA_LDFLAGS@ @WIN32_EXTRA_LDFLAGS@ -version-info @LIBXML_VERSION_INFO@ @MODULE_PLATFORM_LIBS@
+if USE_VERSION_SCRIPT
+LIBXML2_VERSION_SCRIPT = $(VERSION_SCRIPT_FLAGS)$(srcdir)/libxml2.syms
+else
+LIBXML2_VERSION_SCRIPT =
+endif
+
+libxml2_la_LDFLAGS = @CYGWIN_EXTRA_LDFLAGS@ @WIN32_EXTRA_LDFLAGS@ \
+ $(LIBXML2_VERSION_SCRIPT) \
+ -version-info @LIBXML_VERSION_INFO@ \
+ @MODULE_PLATFORM_LIBS@
if WITH_TRIO_SOURCES
libxml2_la_SOURCES = SAX.c entities.c encoding.c error.c parserInternals.c \
@@ -1187,7 +1196,7 @@
triop.h triodef.h libxml.h elfgcchack.h \
testThreadsWin32.c genUnicode.py TODO_SCHEMAS \
dbgen.pl dbgenattr.pl regressions.py regressions.xml \
- README.tests Makefile.tests \
+ README.tests Makefile.tests libxml2.syms \
$(CVS_EXTRA_DIST)