MacOSX compatibility: avoid dangerous TARGET_LINK_LIBRARIES

This crashes the linkage because of the particular link
with the frameworks (here the framework Acceleration).

src/CMakeLists.txt

@@ -57,7 +57,10 @@ IF (UNIX)
 ENDIF (UNIX)
 
 TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${Boost_LIBRARIES})
-TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${JRL_MAL_LDFLAGS_OTHER})
+
+IF (UNIX AND NOT APPLE)
+  TARGET_LINK_LIBRARIES(${LIBRARY_NAME} ${JRL_MAL_LDFLAGS_OTHER})
+ENDIF (UNIX AND NOT APPLE)
 
 INSTALL(TARGETS ${LIBRARY_NAME}
   DESTINATION lib)

tests/CMakeLists.txt

@@ -46,7 +46,9 @@ MACRO(DYNAMIC_GRAPH_TEST NAME)
   # Search for jrl-mal.
   INCLUDE_DIRECTORIES(${JRL_MAL_INCLUDE_DIRS})
   LINK_DIRECTORIES(${JRL_MAL_LIBRARY_DIRS})
-  TARGET_LINK_LIBRARIES(${NAME} ${JRL_MAL_LDFLAGS})
+  IF(UNIX AND NOT APPLE)
+    TARGET_LINK_LIBRARIES(${NAME} ${JRL_MAL_LDFLAGS})
+  ENDIF(UNIX AND NOT APPLE)
 ENDMACRO(DYNAMIC_GRAPH_TEST)