diff --git a/compiler/cfileutl.pas b/compiler/cfileutl.pas
index 445452fb58..43030ca90e 100644
--- a/compiler/cfileutl.pas
+++ b/compiler/cfileutl.pas
@@ -37,6 +37,9 @@ interface
 {$if defined(go32v2) or defined(watcom)}
       Dos,
 {$endif}
+{$ifdef macos}
+      macutils,
+{$endif macos}
 {$IFNDEF USE_FAKE_SYSUTILS}
       SysUtils,
 {$ELSE}
diff --git a/compiler/fpcdefs.inc b/compiler/fpcdefs.inc
index 810b364f9d..c7ca6c5a5e 100644
--- a/compiler/fpcdefs.inc
+++ b/compiler/fpcdefs.inc
@@ -274,10 +274,6 @@
   {$define SUPPORT_SAFECALL}
 {$endif aarch64}
 
-{$IFDEF MACOS}
-{$DEFINE USE_FAKE_SYSUTILS}
-{$ENDIF MACOS}
-
 { Stabs is not officially supported on 64 bit targets by gdb, except on Mac OS X
   (but there we don't support it)
 }
diff --git a/rtl/beos/errno.inc b/rtl/beos/errno.inc
index b41796cbf1..8300ece913 100644
--- a/rtl/beos/errno.inc
+++ b/rtl/beos/errno.inc
@@ -386,10 +386,12 @@ const
     ESysESRCH       = (B_POSIX_ERROR_BASE + 13);
     ESysETIMEDOUT   = ord(B_TIMED_OUT);
     ESysEXDEV       = ord(B_CROSS_DEVICE_LINK);
+    ESysEMSGSIZE     = EMSGSIZE;
+    ESysEOPNOTSUPP   = EOPNOTSUPP;
+
 
     {ESysEBADMSG     =    realtime extension POSIX only   }
     {ESysECANCELED   =    async. I/O extension POSIX only }
-    {ESysEMSGSIZE    =    realtime extension POSIX only   }
     {ESysEINPROGRESS =    async. I/O extension POSIX only }
 
 {***********************************************************************}