diff --git a/rtl/dragonfly/Makefile.fpc b/rtl/dragonfly/Makefile.fpc
index 3959de83e7..cbacaccb24 100644
--- a/rtl/dragonfly/Makefile.fpc
+++ b/rtl/dragonfly/Makefile.fpc
@@ -16,7 +16,7 @@ units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
       $(CPU_UNITS) $(CHARSETUNIT) $(CPALLUNIT) $(GETOPTSUNIT) $(HEAPTRCUNIT) $(LNFODWRFUNIT) $(LINEINFOUNIT) \
-      $(ERRORSUNIT) bsd \
+      $(ERRORSUNIT) $(BSDUNIT) \
       $(CONSOLEUNIT) \
       sysconst cthreads dos cwstring \
       $(FPINTRESUNIT) $(UNIXCPUNIT) $(FPWIDESTRINGUNIT) \
@@ -60,6 +60,9 @@ BSDPROCINC=$(BSDINC)/$(CPU_TARGET)
 UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 CPU_UNITS=
+
+BSD_DEPS_OS=$(SYSCALLUNIT)$(PPUEXT)
+
 DYNLIBS_DEPS_OS=$(DLUNIT)$(PPUEXT)
 DYNLIBSINCDIR=$(UNIXINC)
 SYSCALL_DEPS_OS=sysnr.inc $(BSDPROCINC)/syscallh.inc
@@ -140,8 +143,6 @@ unix$(PPUEXT) : $(UNIXINC)/unix.pp strings$(PPUEXT) $(INC)/textrec.inc $(INC)/fi
                  unxconst.inc $(UNIXINC)/timezone.inc \
                  unxfunc.inc baseunix$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
 
-bsd$(PPUEXT) : $(BSDINC)/bsd.pas $(INITCUNIT)$(PPUEXT) unix$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
-
 #
 # TP7 Compatible RTL Units
 #
diff --git a/rtl/freebsd/Makefile.fpc b/rtl/freebsd/Makefile.fpc
index 3d1853c7b7..c87a7881ec 100644
--- a/rtl/freebsd/Makefile.fpc
+++ b/rtl/freebsd/Makefile.fpc
@@ -16,7 +16,7 @@ units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
       $(CPU_UNITS) $(CHARSETUNIT) $(CPALLUNIT) $(GETOPTSUNIT) $(HEAPTRCUNIT) $(LNFODWRFUNIT) $(LINEINFOUNIT) \
-      $(ERRORSUNIT) bsd freebsd \
+      $(ERRORSUNIT) $(BSDUNIT) freebsd \
       $(CONSOLEUNIT) \
       sysconst cthreads dos cwstring \
       $(FPINTRESUNIT) $(UNIXCPUNIT) $(FPWIDESTRINGUNIT) \
@@ -61,6 +61,7 @@ BSDPROCINC=$(BSDINC)/$(CPU_TARGET)
 UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 CPU_UNITS=
+BSD_DEPS_OS=$(SYSCALLUNIT)$(PPUEXT)
 DYNLIBS_DEPS_OS=$(DLUNIT)$(PPUEXT)
 DYNLIBSINCDIR=$(UNIXINC)
 
@@ -214,6 +215,3 @@ ctypes$(PPUEXT) :  $(INC)/ctypes.pp $(SYSTEMUNIT)$(PPUEXT)
 cwstring$(PPUEXT) : $(UNIXINC)/cwstring.pp $(SYSTEMUNIT)$(PPUEXT) sysutils$(PPUEXT) baseunix$(PPUEXT) unix$(PPUEXT) unixtype$(PPUEXT) ctypes$(PPUEXT) $(DYNLIBSUNIT)$(PPUEXT)
         $(COMPILER) $<
 
-bsd$(PPUEXT) : $(BSDINC)/bsd.pas $(INITCUNIT)$(PPUEXT) unix$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
-        $(COMPILER) $<
-
diff --git a/rtl/netbsd/Makefile.fpc b/rtl/netbsd/Makefile.fpc
index 8c6b65dea6..76ef738ea4 100644
--- a/rtl/netbsd/Makefile.fpc
+++ b/rtl/netbsd/Makefile.fpc
@@ -16,7 +16,7 @@ units=$(SYSTEMUNIT) $(UUCHARUNIT) unixtype ctypes $(OBJPASUNIT) $(MACPASUNIT) $(
       $(DLUNIT) $(TERMIOUNIT) \
       sysutils $(MATHUNIT) typinfo types $(SORTBASEUNIT) classes $(FGLUNIT) $(DYNLIBSUNIT) \
       $(CPU_UNITS) $(CHARSETUNIT) $(CPALLUNIT) $(GETOPTSUNIT) $(HEAPTRCUNIT) $(LNFODWRFUNIT) $(LINEINFOUNIT) \
-      $(ERRORSUNIT) bsd \
+      $(ERRORSUNIT) $(BSDUNIT) \
       sysconst cthreads dos cwstring \
       $(FPINTRESUNIT) $(UNIXCPUNIT) $(FPWIDESTRINGUNIT) \
       $(SOFTFPUUNIT) $(SFPUX80UNIT) $(UFLOATX80UNIT) $(SFPU128UNIT) $(UFLOAT128UNIT)
@@ -59,6 +59,8 @@ BSDPROCINC=$(BSDINC)/$(CPU_TARGET)
 UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 TARGETPROCINC=$(RTL)/netbsd/$(CPU_TARGET)
+
+BSD_DEPS_OS=$(SYSCALLUNIT)$(PPUEXT)
 DYNLIBS_DEPS_OS=$(DLUNIT)$(PPUEXT)
 DYNLIBSINCDIR=$(UNIXINC)
 SYSCALL_DEPS_OS=baseunix$(PPUEXT) unixtype$(PPUEXT) sysnr.inc $(BSDPROCINC)/syscallh.inc
@@ -212,9 +214,6 @@ variants$(PPUEXT) : $(INC)/variants.pp sysutils$(PPUEXT) sysconst$(PPUEXT) varut
 cwstring$(PPUEXT) : $(UNIXINC)/cwstring.pp $(SYSTEMUNIT)$(PPUEXT) sysutils$(PPUEXT) baseunix$(PPUEXT) unix$(PPUEXT) unixtype$(PPUEXT) ctypes$(PPUEXT) $(DYNLIBSUNIT)$(PPUEXT)
 	$(COMPILER) $<
 
-bsd$(PPUEXT) : $(BSDINC)/bsd.pas $(INITCUNIT)$(PPUEXT) unix$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
-	$(COMPILER) $<
-
 ctypes$(PPUEXT) :  $(INC)/ctypes.pp $(SYSTEMUNIT)$(PPUEXT)
 	$(COMPILER) $<
 
diff --git a/rtl/openbsd/Makefile.fpc b/rtl/openbsd/Makefile.fpc
index a9a7eb5f03..308c721bc2 100644
--- a/rtl/openbsd/Makefile.fpc
+++ b/rtl/openbsd/Makefile.fpc
@@ -11,7 +11,7 @@ fpcpackage=y
 [target]
 loaders=$(LOADERS)
 units=$(SYSTEMUNIT) $(SYSINIT_UNITS) $(INITCUNIT) $(UUCHARUNIT) $(OBJPASUNIT) $(MACPASUNIT) $(ISO7185UNIT) $(EXTPASUNIT) $(STRINGSUNIT) $(SYSCALLUNIT) baseunix \
-      $(LINUXUNIT) unixtype unixutil unix ctypes bsd \
+      $(LINUXUNIT) unixtype unixutil unix ctypes $(BSDUNIT) \
       $(CPU_UNITS) dos rtlconsts \
       sysutils $(SORTBASEUNIT) $(FGLUNIT) classes typinfo $(MATHUNIT) \
       $(CHARSETUNIT) $(CPALLUNIT) $(CHARACTERUNIT) $(GETOPTSUNIT) $(HEAPTRCUNIT) $(LINEINFOUNIT) $(LNFODWRFUNIT) \
@@ -58,6 +58,8 @@ BSDPROCINC=$(BSDINC)/$(CPU_TARGET)
 UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 TARGETPROCINC=$(RTL)/openbsd/$(CPU_TARGET)
+
+BSD_DEPS_OS=$(SYSCALLUNIT)$(PPUEXT)
 DYNLIBS_DEPS_OS=$(DLUNIT)$(PPUEXT)
 DYNLIBSINCDIR=$(UNIXINC)
 SYSCALL_DEPS_OS=baseunix$(PPUEXT) unixtype$(PPUEXT) sysnr.inc setsysnr.inc $(BSDPROCINC)/syscallh.inc
@@ -216,9 +218,6 @@ cpu$(PPUEXT) : $(PROCINC)/cpu.pp $(SYSTEMUNIT)$(PPUEXT)
         $(COMPILER) $<
 endif
 
-bsd$(PPUEXT) : $(BSDINC)/bsd.pas $(INITCUNIT)$(PPUEXT) unix$(PPUEXT) $(SYSCALLUNIT)$(PPUEXT) $(SYSTEMUNIT)$(PPUEXT)
-        $(COMPILER) $<
-
 #
 # Other system-dependent RTL Units
 #