Merge topic 'llvm-fix' into release

4ff3e836 llvm: fix LLVMWindowsManifest not finding libxml2

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !530

projects/unix/llvm.cmake

@@ -23,5 +23,7 @@ superbuild_add_project(llvm
 
 superbuild_apply_patch(${project} workaround-intel-build-failures
   "Fix build failures with the Intel compiler")
+superbuild_apply_patch(${project} fix-libxml2
+  "Fix -lxml2-not-found problem")
 
 set(llvm_dir "<INSTALL_DIR>")

projects/unix/patches/llvm-fix-libxml2.patch

+--- src/cmake/config-ix.cmake	2018-11-07 19:10:31.910221296 +0000
++++ src/cmake/config-ix.cmake	2018-11-07 19:02:58.794960316 +0000
+@@ -153,7 +153,7 @@
+         else()
+           include_directories(${LIBXML2_INCLUDE_DIR})
+         endif()
+-        set(LIBXML2_LIBS "xml2")
++        set(LIBXML2_LIBS ${LIBXML2_LIBRARY})
+       endif()
+     endif()
+   endif()