Recently a new issue manifested out of thin air: linking to pango fails with
missing symbols like '_g_object_unref'. Pango requires '-lgobject-2.0',
but this does not appear in the linker flags (check invocation with
'make V=1'). Easiest way for a quick & dirty fix is to configure with
PANGO_LIBS set accordingly, but the configure scripts deletes the setting
although claiming to respect it. Therefore we patch the configure
script first.
--- a/configure
+++ b/configure
@@ -31889,7 +31889,7 @@
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_PANGO_LIBS=`$PKG_CONFIG --libs "pangocairo >= 1.28.1" 2>/dev/null`
+  pkg_cv_PANGO_LIBS="$($PKG_CONFIG --libs pangocairo) -lgobject-2.0"
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes