diff --git a/post/Makefile b/post/Makefile
index 169d126..200e2f1 100644
--- a/post/Makefile
+++ b/post/Makefile
@@ -24,20 +24,20 @@
 include $(TOPDIR)/config.mk
 include $(OBJTREE)/include/autoconf.mk
 
-LIB				= libpost.a
-GPLIB-$(CONFIG_HAS_POST)	+= libgenpost.a
+LIB				= libpost.o
+GPLIB-$(CONFIG_HAS_POST)	+= libgenpost.o
 COBJS-$(CONFIG_HAS_POST)	+= post.o
 COBJS-$(CONFIG_POST_STD_LIST)	+= tests.o
 
-SPLIB-$(CONFIG_HAS_POST) = drivers/libpostdrivers.a
+SPLIB-$(CONFIG_HAS_POST) = drivers/libpostdrivers.o
 SPLIB-$(CONFIG_HAS_POST) += $(shell if [ -d lib_$(ARCH) ]; then echo \
-			    "lib_$(ARCH)/libpost$(ARCH).a"; fi)
+			    "lib_$(ARCH)/libpost$(ARCH).o"; fi)
 SPLIB-$(CONFIG_HAS_POST) += $(shell if [ -d lib_$(ARCH)/fpu ]; then echo \
-			    "lib_$(ARCH)/fpu/libpost$(ARCH)fpu.a"; fi)
+			    "lib_$(ARCH)/fpu/libpost$(ARCH)fpu.o"; fi)
 SPLIB-$(CONFIG_HAS_POST) += $(shell if [ -d cpu/$(CPU) ]; then echo \
-			    "cpu/$(CPU)/libpost$(CPU).a"; fi)
+			    "cpu/$(CPU)/libpost$(CPU).o"; fi)
 SPLIB-$(CONFIG_HAS_POST) += $(shell if [ -d board/$(BOARD) ]; then echo \
-			    "board/$(BOARD)/libpost$(BOARD).a"; fi)
+			    "board/$(BOARD)/libpost$(BOARD).o"; fi)
 
 GPLIB	:= $(addprefix $(obj),$(GPLIB-y))
 SPLIB	:= $(addprefix $(obj),$(SPLIB-y))
@@ -55,7 +55,7 @@
 
 # generic POST library
 $(GPLIB): $(obj).depend $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 # specific POST libraries
 $(SPLIB): $(obj).depend postdeps
@@ -63,9 +63,7 @@
 
 # the POST lib archive
 $(LIB): $(GPLIB) $(SPLIB)
-	(echo create $(LIB); for lib in $(GPLIB) $(SPLIB) ; \
-	 do echo addlib $$lib; done; echo save) \
-	| $(AR) -M
+	$(call cmd_link_o_target, $^)
 
 #########################################################################
 
diff --git a/post/board/lwmon/Makefile b/post/board/lwmon/Makefile
index d2932be..83026c0 100644
--- a/post/board/lwmon/Makefile
+++ b/post/board/lwmon/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostlwmon.a
+LIB	= libpostlwmon.o
 
 COBJS-$(CONFIG_HAS_POST)	+= sysmon.o
 
diff --git a/post/board/lwmon5/Makefile b/post/board/lwmon5/Makefile
index 4e95515..b199688 100644
--- a/post/board/lwmon5/Makefile
+++ b/post/board/lwmon5/Makefile
@@ -22,7 +22,7 @@
 # MA 02111-1307 USA
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostlwmon5.a
+LIB	= libpostlwmon5.o
 
 COBJS-$(CONFIG_HAS_POST)	+= sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
 
diff --git a/post/board/netta/Makefile b/post/board/netta/Makefile
index 8a8578f..2d34dd8 100644
--- a/post/board/netta/Makefile
+++ b/post/board/netta/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostnetta.a
+LIB	= libpostnetta.o
 
 COBJS-$(CONFIG_HAS_POST)	+= codec.o dsp.o
 
diff --git a/post/board/pdm360ng/Makefile b/post/board/pdm360ng/Makefile
index d1538f6..d25b0d1 100644
--- a/post/board/pdm360ng/Makefile
+++ b/post/board/pdm360ng/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostpdm360ng.a
+LIB	= libpostpdm360ng.o
 
 COBJS-$(CONFIG_HAS_POST)	+= coproc_com.o
 
diff --git a/post/cpu/mpc83xx/Makefile b/post/cpu/mpc83xx/Makefile
index 86d8784..a8b7005 100644
--- a/post/cpu/mpc83xx/Makefile
+++ b/post/cpu/mpc83xx/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostmpc83xx.a
+LIB	= libpostmpc83xx.o
 
 AOBJS-$(CONFIG_HAS_POST)	+=
 COBJS-$(CONFIG_HAS_POST)	+= ecc.o
diff --git a/post/cpu/mpc8xx/Makefile b/post/cpu/mpc8xx/Makefile
index 162924f..3e1792f 100644
--- a/post/cpu/mpc8xx/Makefile
+++ b/post/cpu/mpc8xx/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostmpc8xx.a
+LIB	= libpostmpc8xx.o
 
 AOBJS-$(CONFIG_HAS_POST)	+= cache_8xx.o
 COBJS-$(CONFIG_HAS_POST)	+= cache.o ether.o spr.o uart.o usb.o watchdog.o
diff --git a/post/cpu/ppc4xx/Makefile b/post/cpu/ppc4xx/Makefile
index 1cfd3bb..9220131 100644
--- a/post/cpu/ppc4xx/Makefile
+++ b/post/cpu/ppc4xx/Makefile
@@ -22,7 +22,7 @@
 #
 include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostppc4xx.a
+LIB	= libpostppc4xx.o
 
 AOBJS-$(CONFIG_HAS_POST)	+= cache_4xx.o
 COBJS-$(CONFIG_HAS_POST)	+= cache.o
diff --git a/post/drivers/Makefile b/post/drivers/Makefile
index 0b6cdf5..0d87ae0 100644
--- a/post/drivers/Makefile
+++ b/post/drivers/Makefile
@@ -22,7 +22,7 @@
 #
 include $(TOPDIR)/config.mk
 
-LIB	= libpostdrivers.a
+LIB	= libpostdrivers.o
 
 COBJS-$(CONFIG_HAS_POST)	+= i2c.o memory.o rtc.o
 
diff --git a/post/lib_powerpc/Makefile b/post/lib_powerpc/Makefile
index 0cd15cf..bc9b82e 100644
--- a/post/lib_powerpc/Makefile
+++ b/post/lib_powerpc/Makefile
@@ -22,7 +22,7 @@
 #
 include $(TOPDIR)/config.mk
 
-LIB	= libpost$(ARCH).a
+LIB	= libpost$(ARCH).o
 
 AOBJS-$(CONFIG_HAS_POST)	+= asm.o
 COBJS-$(CONFIG_HAS_POST)	+= cpu.o cmp.o cmpi.o two.o twox.o three.o threex.o
diff --git a/post/lib_powerpc/fpu/Makefile b/post/lib_powerpc/fpu/Makefile
index 25726db..b97ad6f 100644
--- a/post/lib_powerpc/fpu/Makefile
+++ b/post/lib_powerpc/fpu/Makefile
@@ -22,7 +22,7 @@
 #
 include $(TOPDIR)/config.mk
 
-LIB	= libpost$(ARCH)fpu.a
+LIB	= libpost$(ARCH)fpu.o
 
 COBJS-$(CONFIG_HAS_POST)	+= fpu.o 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o
 COBJS-$(CONFIG_HAS_POST)	+= acc1.o compare-fp-1.o mul-subnormal-single-1.o
diff --git a/post/rules.mk b/post/rules.mk
index 1efc9c7..17f8ef7 100644
--- a/post/rules.mk
+++ b/post/rules.mk
@@ -34,7 +34,7 @@
 all:	$(LIB)
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################