diff --git a/Makefile.target b/Makefile.target
index 422328314a..06c1e59bc4 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -85,6 +85,12 @@ obj-y += disas.o
 obj-$(call notempty,$(TARGET_XML_FILES)) += gdbstub-xml.o
 obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
 
+obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decContext.o
+obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decNumber.o
+obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal32.o
+obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal64.o
+obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal128.o
+
 #########################################################
 # Linux user emulator target
 
diff --git a/default-configs/ppc-linux-user.mak b/default-configs/ppc-linux-user.mak
index 6273df2930..260ba41836 100644
--- a/default-configs/ppc-linux-user.mak
+++ b/default-configs/ppc-linux-user.mak
@@ -1 +1,2 @@
 # Default configuration for ppc-linux-user
+CONFIG_LIBDECNUMBER=y
diff --git a/default-configs/ppc-softmmu.mak b/default-configs/ppc-softmmu.mak
index 07c51ced1f..33f8d84e68 100644
--- a/default-configs/ppc-softmmu.mak
+++ b/default-configs/ppc-softmmu.mak
@@ -49,3 +49,4 @@ CONFIG_OPENPIC_KVM=$(and $(CONFIG_E500),$(CONFIG_KVM))
 CONFIG_MC146818RTC=y
 CONFIG_ETSEC=y
 CONFIG_ISA_TESTDEV=y
+CONFIG_LIBDECNUMBER=y
diff --git a/default-configs/ppc64-linux-user.mak b/default-configs/ppc64-linux-user.mak
index 422d3fbaeb..e731ce016e 100644
--- a/default-configs/ppc64-linux-user.mak
+++ b/default-configs/ppc64-linux-user.mak
@@ -1 +1,2 @@
 # Default configuration for ppc64-linux-user
+CONFIG_LIBDECNUMBER=y
diff --git a/default-configs/ppc64-softmmu.mak b/default-configs/ppc64-softmmu.mak
index e2beac6df1..37a15b7ce2 100644
--- a/default-configs/ppc64-softmmu.mak
+++ b/default-configs/ppc64-softmmu.mak
@@ -58,3 +58,4 @@ CONFIG_I82374=y
 CONFIG_I8257=y
 CONFIG_MC146818RTC=y
 CONFIG_ISA_TESTDEV=y
+CONFIG_LIBDECNUMBER=y
diff --git a/default-configs/ppc64abi32-linux-user.mak b/default-configs/ppc64abi32-linux-user.mak
index 1c657ec9bb..c244d07d56 100644
--- a/default-configs/ppc64abi32-linux-user.mak
+++ b/default-configs/ppc64abi32-linux-user.mak
@@ -1 +1,2 @@
 # Default configuration for ppc64abi32-linux-user
+CONFIG_LIBDECNUMBER=y
diff --git a/default-configs/ppcemb-softmmu.mak b/default-configs/ppcemb-softmmu.mak
index 1e4fde2190..e032761457 100644
--- a/default-configs/ppcemb-softmmu.mak
+++ b/default-configs/ppcemb-softmmu.mak
@@ -16,3 +16,4 @@ CONFIG_I8259=y
 CONFIG_XILINX=y
 CONFIG_XILINX_ETHLITE=y
 CONFIG_OPENPIC=y
+CONFIG_LIBDECNUMBER=y