Merge topic 'update-libxml2'

6ebb628 Merge branch 'upstream-libxml2' into update-libxml2
4cc84e7 libxml2 2019-04-01 (a41ab7b3)
a7f2269 libxml2: Modify update.sh for new update

Acked-by: Kitware Robot <[email protected]>
Acked-by: Ben Boeckel <[email protected]>
Merge-request: !5356

Author: cquammen

ThirdParty/libxml2/update.sh

@@ -8,7 +8,7 @@ readonly name="libxml2"
 readonly ownership="libxml2 Upstream <[email protected]>"
 readonly subtree="ThirdParty/$name/vtk$name"
 readonly repo="https://gitlab.kitware.com/third-party/libxml2.git"
-readonly tag="for/vtk-20181015-2.9.8"
+readonly tag="for/vtk-20190401-2.9.8"
 readonly paths="
 include/libxml/*.h
 include/libxml/xmlversion.h.in

ThirdParty/libxml2/vtklibxml2/CMakeLists.txt

@@ -4,6 +4,12 @@ SET(LIBXML_VERSION_NUMBER 20627)
 SET(LIBXML_VERSION_EXTRA "")
 SET(MODULE_EXTENSION ${CMAKE_SHARED_MODULE_SUFFIX})
 
+# Use new behavior of linking against libraries in the CMAKE_REQUIRED_LIBRARIES
+# variable in the CHECK_INCLUDE_FILE macro
+IF (POLICY CMP0075)
+  CMAKE_POLICY(SET CMP0075 NEW)
+ENDIF()
+
 INCLUDE(CheckLibraryExists)
 INCLUDE(CheckIncludeFile)
 INCLUDE(CheckIncludeFiles)