use a cache variable to pass around lib paths

cmake/macros/AddPathToLibPaths.cmake

@@ -0,0 +1,16 @@
+# 
+#  AddPathToLibPaths.cmake
+#  cmake/macros
+# 
+#  Copyright 2015 High Fidelity, Inc.
+#  Created by Stephen Birarda on February 13, 2014
+#
+#  Distributed under the Apache License, Version 2.0.
+#  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+# 
+
+macro(ADD_PATH_TO_LIB_PATHS _PATH)
+  set(TEMP_LIB_PATHS ${LIB_PATHS})
+  list(APPEND TEMP_LIB_PATHS ${_PATH})
+  set(LIB_PATHS ${TEMP_LIB_PATHS} CACHE TYPE LIST FORCE)
+endmacro()

cmake/modules/FindSoxr.cmake

@@ -24,6 +24,11 @@ hifi_library_search_hints("soxr")
 find_path(SOXR_INCLUDE_DIRS soxr.h PATH_SUFFIXES include HINTS ${SOXR_SEARCH_DIRS})
 find_library(SOXR_LIBRARIES NAMES soxr PATH_SUFFIXES lib HINTS ${SOXR_SEARCH_DIRS})
 
+if (NOT DEFINED SOXR_LIB_PATH)
+  get_filename_component(SOXR_LIB_PATH ${SOXR_LIBRARIES} DIRECTORY CACHE)
+  add_path_to_lib_paths(${SOXR_LIB_PATH})
+endif ()
+
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(SOXR DEFAULT_MSG SOXR_INCLUDE_DIRS SOXR_LIBRARIES)
 

cmake/scripts/FixupBundlePostBuild.cmake

@@ -10,4 +10,4 @@
 # 
 
 include(BundleUtilities)
-fixup_bundle("${BUNDLE_EXECUTABLE}" "" "${LIB_SEARCH_DIRS}")
+fixup_bundle("${BUNDLE_EXECUTABLE}" "" "${LIB_PATHS}")

interface/CMakeLists.txt

@@ -240,14 +240,13 @@ else (APPLE)
 endif (APPLE)
 
 if (WIN32)
-  list(APPEND LIB_SEARCH_DIRS ${EXTERNALS_BINARY_DIR})
   # add a post-build command to copy DLLs beside the interface executable
   add_custom_command(
     TARGET ${TARGET_NAME}
     POST_BUILD
     COMMAND ${CMAKE_COMMAND} 
       -DBUNDLE_EXECUTABLE=$<TARGET_FILE:${TARGET_NAME}> 
-      -DLIB_SEARCH_DIRS=${LIB_SEARCH_DIRS} 
+      -DLIB_PATHS=${LIB_PATHS} 
       -P ${HIFI_CMAKE_DIR}/scripts/FixupBundlePostBuild.cmake
   )
 endif ()