if hwloc is present on mac, it is also linked as otherwise, we get linker errors

resources/3rdparty/CMakeLists.txt

@@ -364,14 +364,14 @@ add_imported_library(sylvan STATIC ${Sylvan_LIBRARY} ${Sylvan_INCLUDE_DIR})
 add_dependencies(sylvan_STATIC sylvan)
 list(APPEND STORM_DEP_TARGETS sylvan_STATIC)
 
-if(${OPERATING_SYSTEM} MATCHES "Linux")
-    find_package(Hwloc QUIET REQUIRED)
-    if(HWLOC_FOUND)
+find_package(Hwloc QUIET REQUIRED)
+if(HWLOC_FOUND)
     message(STATUS "Storm - Linking with hwloc ${HWLOC_VERSION}.")
     add_imported_library(hwloc STATIC ${HWLOC_LIBRARIES} "")
     list(APPEND STORM_DEP_TARGETS hwloc_STATIC)
-    else()
-        message(FATAL_ERROR "HWLOC is required but was not found.")
+else()
+    if(${OPERATING_SYSTEM} MATCHES "Linux")
+        message(FATAL_ERROR "HWLOC is required on Linux but was not found.")
     endif()
 endif()
 

resources/cmake/find_modules/FindHwloc.cmake

@@ -19,7 +19,6 @@ if (NOT HWLOC_PREFIX AND NOT $ENV{HWLOC_BASE} STREQUAL "")
   set(HWLOC_PREFIX $ENV{HWLOC_BASE})
 endif()
 
-message(STATUS "Searching for hwloc library in path " ${HWLOC_PREFIX})
 
 find_library(
   HWLOC_LIBRARIES
@@ -50,6 +49,4 @@ if (HWLOC_FOUND)
   if (NOT $ENV{HWLOC_LIB} STREQUAL "")
 # set(HWLOC_LIBRARIES "$ENV{HWLOC_LIB}")
   endif()
-  message(STATUS "hwloc includes:  " ${HWLOC_INCLUDE_DIRS})
-  message(STATUS "hwloc libraries: " ${HWLOC_LIBRARIES})
 endif()