Fix a few install export issues with KWSYS.

These local patches are soon to be replaced with upstream fixes

thirdparty/KWSys/CMakeLists.txt

@@ -4,5 +4,7 @@ set(KWSYS_USE_RegularExpression ON)
 set(KWSYS_USE_SystemTools ON)
 set(KWSYS_BUILD_SHARED ${ADIOS2_BUILD_SHARED_LIBS})
 set(KWSYS_SPLIT_OBJECTS_FROM_INTERFACE ON)
+set(KWSYS_INSTALL_EXPORT_NAME adios2Exports)
+set(KWSYS_INSTALL_LIB_DIR ${CMAKE_INSTALL_LIBDIR})
 
-add_subdirectory(adios2sys EXCLUDE_FROM_ALL)
+add_subdirectory(adios2sys)

thirdparty/KWSys/adios2sys/CMakeLists.txt

@@ -886,12 +886,16 @@ IF(KWSYS_C_SRCS OR KWSYS_CXX_SRCS)
   # Set up include usage requirement
   IF(COMMAND TARGET_INCLUDE_DIRECTORIES)
     TARGET_INCLUDE_DIRECTORIES(${KWSYS_TARGET_INTERFACE} INTERFACE
-      ${CMAKE_CURRENT_BINARY_DIR})
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>)
+    IF(KWSYS_INSTALL_INCLUDE_DIR)
+      TARGET_INCLUDE_DIRECTORIES(${KWSYS_TARGET_INTERFACE} INTERFACE
+        $<INSTALL_INTERFACE:${KWSYS_INSTALL_INCLUDE_DIR}>)
+    ENDIF()
   ENDIF()
 
   # Create an install target for the library.
   IF(KWSYS_INSTALL_LIBRARY_RULE)
-    INSTALL(TARGETS ${KWSYS_TARGET_INTERFACE} ${KWSYS_INSTALL_LIBRARY_RULE})
+    INSTALL(TARGETS ${KWSYS_TARGET_LINK} ${KWSYS_TARGET_INTERFACE} ${KWSYS_INSTALL_LIBRARY_RULE})
   ENDIF()
 ENDIF()
 
@@ -930,6 +934,16 @@ IF(KWSYS_ENABLE_C AND KWSYS_C_SRCS)
       ${KWSYS_PROPERTIES_C})
   ENDIF()
 
+  # Set up include usage requirement
+  IF(COMMAND TARGET_INCLUDE_DIRECTORIES)
+    TARGET_INCLUDE_DIRECTORIES(${KWSYS_TARGET_C_INTERFACE} INTERFACE
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>)
+    IF(KWSYS_INSTALL_INCLUDE_DIR)
+      TARGET_INCLUDE_DIRECTORIES(${KWSYS_TARGET_C_INTERFACE} INTERFACE
+        $<INSTALL_INTERFACE:${KWSYS_INSTALL_INCLUDE_DIR}>)
+    ENDIF()
+  ENDIF()
+
   # Create an install target for the library.
   IF(KWSYS_INSTALL_LIBRARY_RULE)
     INSTALL(TARGETS ${KWSYS_TARGET_C_INTERFACE} ${KWSYS_INSTALL_LIBRARY_RULE})