diff --git a/sapfor/experts/Sapfor_2017/CMakeLists.txt b/sapfor/experts/Sapfor_2017/CMakeLists.txt
index f3f4abf..b06ff45 100644
--- a/sapfor/experts/Sapfor_2017/CMakeLists.txt
+++ b/sapfor/experts/Sapfor_2017/CMakeLists.txt
@@ -500,6 +500,8 @@ add_definitions("-D __SPF_BUILT_IN_PPPA")
 
 if (WIN32)
     target_link_libraries(Sapfor_F SageNewSrc SageLib SageOldSrc)
+elseif(APPLE)
+    target_link_libraries(Sapfor_F SageNewSrc SageLib SageOldSrc pthread)
 elseif(UNIX)
     if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 6.0)
         target_link_libraries(Sapfor_F SageNewSrc SageLib SageOldSrc pthread stdc++fs)
diff --git a/sapfor/experts/Sapfor_2017/_src/ProjectManipulation/StdCapture.h b/sapfor/experts/Sapfor_2017/_src/ProjectManipulation/StdCapture.h
index 4867c7a..2878448 100644
--- a/sapfor/experts/Sapfor_2017/_src/ProjectManipulation/StdCapture.h
+++ b/sapfor/experts/Sapfor_2017/_src/ProjectManipulation/StdCapture.h
@@ -66,7 +66,11 @@ class StdCapture
             ret = pipe(pipes, 1024 * 1024 * 20, O_BINARY); // 20 MB
 #else
             ret = pipe(pipes) == -1;
+    #ifdef __APPLE__
+            fcntl(*pipes, F_PREALLOCATE, 1024 * 1024 * 20);
+    #else
             fcntl(*pipes, F_SETPIPE_SZ, 1024 * 1024 * 20);
+    #endif
 #endif
             fd_blocked = (errno == EINTR || errno == EBUSY);
             if (fd_blocked)