diff --git a/rtl/dragonfly/Makefile.fpc b/rtl/dragonfly/Makefile.fpc
index cbacaccb24..495f61c1c7 100644
--- a/rtl/dragonfly/Makefile.fpc
+++ b/rtl/dragonfly/Makefile.fpc
@@ -11,7 +11,7 @@ fpcpackage=y
 [target]
 loaders=prt0 cprt0 gprt0 dllprt0
 units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(ISO7185UNIT) $(EXTPASUNIT) \
-      $(STRINGSUNIT) $(SYSCALLUNIT) sysctl baseunix unixutil $(CHARACTERUNIT) \
+      $(STRINGSUNIT) $(SYSCALLUNIT) $(SYSCTL) baseunix unixutil $(CHARACTERUNIT) \
       unix rtlconsts $(INITCUNIT) $(CMEMUNIT) \
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
@@ -136,7 +136,7 @@ baseunix$(PPUEXT) : errno.inc ptypes.inc $(UNIXINC)/ctypes.inc \
   $(CPU_TARGET)/signal.inc $(UNIXINC)/bunxh.inc \
   $(BSDINC)/bunxsysc.inc $(BSDPROCINC)/syscallh.inc sysnr.inc \
   $(BSDINC)/ostypes.inc $(BSDINC)/osmacro.inc $(UNIXINC)/gensigset.inc \
-  $(UNIXINC)/genfuncs.inc sysctl$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
+  $(UNIXINC)/genfuncs.inc $(SYSCTL)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
 
 
 unix$(PPUEXT) : $(UNIXINC)/unix.pp strings$(PPUEXT) $(INC)/textrec.inc $(INC)/filerec.inc \
@@ -189,8 +189,6 @@ endif
 # Other system-dependent RTL Units
 #
 
-sysctl$(PPUEXT) : $(BSDINC)/sysctl.pp unixtype$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT)
-
 cthreads$(PPUEXT) : $(UNIXINC)/cthreads.pp $(SYSTEMUNIT)$(PPUEXT)
 
 ctypes$(PPUEXT) :  $(INC)/ctypes.pp $(SYSTEMUNIT)$(PPUEXT)
diff --git a/rtl/freebsd/Makefile.fpc b/rtl/freebsd/Makefile.fpc
index c87a7881ec..439463642c 100644
--- a/rtl/freebsd/Makefile.fpc
+++ b/rtl/freebsd/Makefile.fpc
@@ -11,7 +11,7 @@ fpcpackage=y
 [target]
 loaders=prt0 cprt0 gprt0 dllprt0
 units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(ISO7185UNIT) $(EXTPASUNIT) \
-      $(STRINGSUNIT) $(SYSCALLUNIT) sysctl baseunix unixutil $(CHARACTERUNIT) \
+      $(STRINGSUNIT) $(SYSCALLUNIT) $(SYSCTL) baseunix unixutil $(CHARACTERUNIT) \
       unix rtlconsts $(INITCUNIT) $(CMEMUNIT) \
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
@@ -142,7 +142,7 @@ baseunix$(PPUEXT) : $(UNIXINC)/baseunix.pp errno.inc ptypes.inc $(UNIXINC)/ctype
   signal.inc $(UNIXINC)/bunxh.inc \
   $(BSDINC)/bunxsysc.inc $(BSDPROCINC)/syscallh.inc sysnr.inc \
   $(BSDINC)/ostypes.inc $(BSDINC)/osmacro.inc $(UNIXINC)/gensigset.inc \
-  $(UNIXINC)/genfuncs.inc sysctl$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
+  $(UNIXINC)/genfuncs.inc $(SYSCTL)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
         $(COMPILER) $<
 
 
@@ -203,9 +203,6 @@ endif
 # Other system-dependent RTL Units
 #
 
-sysctl$(PPUEXT) : $(BSDINC)/sysctl.pp unixtype$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT)
-        $(COMPILER) $<
-
 cthreads$(PPUEXT) : $(UNIXINC)/cthreads.pp $(SYSTEMUNIT)$(PPUEXT)
         $(COMPILER) $<
 
diff --git a/rtl/inc/Makefile.rtl b/rtl/inc/Makefile.rtl
index 0338b2f863..551785c5a3 100644
--- a/rtl/inc/Makefile.rtl
+++ b/rtl/inc/Makefile.rtl
@@ -1577,7 +1577,7 @@ WinApi.Messages$(PPUEXT): $(NSWINDOWSDIR)/WinApi.Messages.pp $(MESSAGES_DEPS)
 # sysctl
 #
 
-SYSCTL_DEPS=$(BSDINC)/sysctl.pp $(SYSTEMUNIT)$(PPUEXT) $(UNIXTYPEUNIT)$(PPUEXT) \
+SYSCTL_DEPS=$(BSDINC)/sysctl.pp $(SYSTEMUNIT)$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(UNIXTYPEUNIT)$(PPUEXT) \
             $(SYSCTL_DEPS_OS) $(SYSCTL_DEPS_CPU)
 
 
diff --git a/rtl/netbsd/Makefile.fpc b/rtl/netbsd/Makefile.fpc
index 76ef738ea4..04ecaa599c 100644
--- a/rtl/netbsd/Makefile.fpc
+++ b/rtl/netbsd/Makefile.fpc
@@ -11,7 +11,7 @@ fpcpackage=y
 [target]
 loaders=prt0 cprt0 dllprt0
 units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(ISO7185UNIT) $(EXTPASUNIT) \
-      $(STRINGSUNIT) $(SYSCALLUNIT) sysctl  baseunix unixutil $(CHARACTERUNIT) \
+      $(STRINGSUNIT) $(SYSCALLUNIT) $(SYSCTL)  baseunix unixutil $(CHARACTERUNIT) \
       unix rtlconsts $(INITCUNIT) $(CMEMUNIT) \
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
@@ -130,7 +130,7 @@ $(SYSTEMUNIT)$(PPUEXT) : $(BSDINC)/$(SYSTEMUNIT).pp sysconst.inc systypes.inc sy
 #
 
 baseunix$(PPUEXT) :  $(UNIXINC)/baseunix.pp errno.inc ptypes.inc $(UNIXINC)/ctypes.inc \
-  signal.inc $(UNIXINC)/bunxh.inc sysctl$(PPUEXT) \
+  signal.inc $(UNIXINC)/bunxh.inc $(SYSCTL)$(PPUEXT) \
   $(BSDINC)/bunxsysc.inc $(BSDPROCINC)/syscallh.inc sysnr.inc \
   $(BSDINC)/ostypes.inc $(BSDINC)/osmacro.inc $(UNIXINC)/gensigset.inc \
   $(UNIXINC)/genfuncs.inc $(SYSTEMUNIT)$(PPUEXT)
@@ -140,7 +140,7 @@ unixtype$(PPUEXT): $(UNIXINC)/unixtype.pp $(UNIXINC)/ctypes.inc ptypes.inc $(SYS
 	$(COMPILER) $<
 
 
-unix$(PPUEXT) : $(UNIXINC)/unix.pp strings$(PPUEXT) sysctl$(PPUEXT) $(INC)/textrec.inc $(INC)/filerec.inc \
+unix$(PPUEXT) : $(UNIXINC)/unix.pp strings$(PPUEXT) $(SYSCTL)$(PPUEXT) $(INC)/textrec.inc $(INC)/filerec.inc \
                  syscalls.inc systypes.inc sysconst.inc $(UNIXINC)/timezone.inc \
                  unxsysc.inc baseunix$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
 	$(COMPILER) $<
@@ -202,9 +202,6 @@ unixutil$(PPUEXT) : $(UNIXINC)/unixutil.pp $(INC)/textrec.inc $(INC)/filerec.inc
 sysconst$(PPUEXT) : $(OBJPASDIR)/sysconst.pp $(OBJPASUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
         $(COMPILER) $(OBJPASDIR)/sysconst.pp
 
-sysctl$(PPUEXT) : $(BSDINC)/sysctl.pp unixtype$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
-	$(COMPILER) $<
-
 cthreads$(PPUEXT) : $(UNIXINC)/cthreads.pp $(SYSTEMUNIT)$(PPUEXT)
 	$(COMPILER) $<
 
diff --git a/rtl/openbsd/Makefile.fpc b/rtl/openbsd/Makefile.fpc
index 308c721bc2..4c14af3576 100644
--- a/rtl/openbsd/Makefile.fpc
+++ b/rtl/openbsd/Makefile.fpc
@@ -16,7 +16,7 @@ units=$(SYSTEMUNIT) $(SYSINIT_UNITS) $(INITCUNIT) $(UUCHARUNIT) $(OBJPASUNIT) $(
       sysutils $(SORTBASEUNIT) $(FGLUNIT) classes typinfo $(MATHUNIT) \
       $(CHARSETUNIT) $(CPALLUNIT) $(CHARACTERUNIT) $(GETOPTSUNIT) $(HEAPTRCUNIT) $(LINEINFOUNIT) $(LNFODWRFUNIT) \
       $(ERRORSUNIT) \
-      types sysctl sysconst \
+      types $(SYSCTL) sysconst \
       $(FPINTRESUNIT) $(DYNLIBSUNIT) cwstring $(CMEMUNIT) $(DLUNIT) $(TERMIOUNIT) \
       cthreads $(UNIXCPUNIT) $(FPWIDESTRINGUNIT) \
       $(SOFTFPUUNIT) $(SFPUX80UNIT) $(UFLOATX80UNIT) $(SFPU128UNIT) $(UFLOAT128UNIT)
@@ -222,11 +222,6 @@ endif
 # Other system-dependent RTL Units
 #
 
-# sysctl needs to also compile baseunix and syscall units, which
-# are respectively located in ../
-sysctl$(PPUEXT) : $(BSDINC)/sysctl.pp $(SYSTEMUNIT)$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) unixtype$(PPUEXT)
-	$(COMPILER) -Fu$(UNIXINC) -Fu$(BSDINC) $(BSDINC)/sysctl.pp
-
 sysconst$(PPUEXT) : $(OBJPASDIR)/sysconst.pp $(OBJPASUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
         $(COMPILER) $(OBJPASDIR)/sysconst.pp