Check LIBXML_VERSION instead of testing in configure script.

We had put a test for libxml2's xmlStructuredErrorContext variable in
configure, but of course that doesn't work on Windows builds.  The next
best alternative seems to be to test the LIBXML_VERSION symbol provided
by xmlversion.h.

Per report from Talha Bin Rizwan, though this fixes it in a different way
than his proposed patch.

1 files changed, 0 insertions, 69 deletions

diff --git a/configure b/configure
index 78a10c8c885..5449d02c9b2 100755
--- a/configure
+++ b/configure
@@ -23843,75 +23843,6 @@ fi
 
 
 
-# Older versions of libxml2 lack the xmlStructuredErrorContext variable
-# (which could be a macro referring to a function, if threading is enabled)
-if test "$with_libxml" = yes ; then
-  { $as_echo "$as_me:$LINENO: checking for xmlStructuredErrorContext" >&5
-$as_echo_n "checking for xmlStructuredErrorContext... " >&6; }
-if test "${pgac_cv_libxml_structerrctx+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <libxml/globals.h>
-                void *globptr;
-int
-main ()
-{
-globptr = xmlStructuredErrorContext
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  pgac_cv_libxml_structerrctx=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	pgac_cv_libxml_structerrctx=no
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $pgac_cv_libxml_structerrctx" >&5
-$as_echo "$pgac_cv_libxml_structerrctx" >&6; }
-  if test x"$pgac_cv_libxml_structerrctx" = x"yes"; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_XMLSTRUCTUREDERRORCONTEXT 1
-_ACEOF
-
-  fi
-fi
-
-
 # This test makes sure that run tests work at all.  Sometimes a shared
 # library is found by the linker, but the runtime linker can't find it.
 # This check should come after all modifications of compiler or linker