re-enable missing plugins on macOS

src/filter/CMakeLists.txt

@@ -61,10 +61,7 @@ add_subdirectory (lightgraffiti)
 add_subdirectory (luminance)
 add_subdirectory (mask0mate)
 add_subdirectory (medians)
-if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-  # clang 3.1 on OSX fails to compile this one
-  add_subdirectory (measure)
-endif ()
+add_subdirectory (measure)
 add_subdirectory (ndvi)
 add_subdirectory (nervous)
 add_subdirectory (normaliz0r)

src/filter/measure/CMakeLists.txt

@@ -7,6 +7,7 @@ if (MSVC)
   set (F_SOURCES ${F_SOURCES} ${FREI0R_DEF})
 endif (MSVC)
 
+link_libraries(m)
 add_library (pr0be  MODULE  ${B_SOURCES})
 add_library (pr0file  MODULE  ${F_SOURCES})
 

src/generator/CMakeLists.txt

@@ -4,7 +4,4 @@ add_subdirectory (lissajous0r)
 add_subdirectory (nois0r)
 add_subdirectory (onecol0r)
 add_subdirectory (partik0l)
-if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-  # clang 3.1 on OSX fails to compile this one
-  add_subdirectory (test_pat)
-endif ()
+add_subdirectory (test_pat)