diff --git a/libdecnumber/decContext.c b/libdecnumber/decContext.c
index 68e6f60e96..7d97a65ac5 100644
--- a/libdecnumber/decContext.c
+++ b/libdecnumber/decContext.c
@@ -35,8 +35,7 @@
 /* context structures.						      */
 /* ------------------------------------------------------------------ */
 
-#include <string.h>	      /* for strcmp */
-#include <stdio.h>	      /* for printf if DECCHECK */
+#include "qemu/osdep.h"
 #include "libdecnumber/dconfig.h"
 #include "libdecnumber/decContext.h"
 #include "libdecnumber/decNumberLocal.h"
diff --git a/libdecnumber/decNumber.c b/libdecnumber/decNumber.c
index ca1412f30b..c9e7807f87 100644
--- a/libdecnumber/decNumber.c
+++ b/libdecnumber/decNumber.c
@@ -166,10 +166,7 @@
 /*	**  -- raise to the power				      */
 /* ------------------------------------------------------------------ */
 
-#include <stdlib.h>		   /* for malloc, free, etc. */
-#include <stdio.h>		   /* for printf [if needed] */
-#include <string.h>		   /* for strcpy */
-#include <ctype.h>		   /* for lower */
+#include "qemu/osdep.h"
 #include "libdecnumber/dconfig.h"
 #include "libdecnumber/decNumber.h"
 #include "libdecnumber/decNumberLocal.h"
diff --git a/libdecnumber/dpd/decimal128.c b/libdecnumber/dpd/decimal128.c
index 7551b7caaf..ca4764e547 100644
--- a/libdecnumber/dpd/decimal128.c
+++ b/libdecnumber/dpd/decimal128.c
@@ -39,8 +39,7 @@
 /*								      */
 /* Error handling is the same as decNumber (qv.).		      */
 /* ------------------------------------------------------------------ */
-#include <string.h>	      /* [for memset/memcpy] */
-#include <stdio.h>	      /* [for printf] */
+#include "qemu/osdep.h"
 
 #include "libdecnumber/dconfig.h"
 #define	 DECNUMDIGITS 34      /* make decNumbers with space for 34 */
diff --git a/libdecnumber/dpd/decimal32.c b/libdecnumber/dpd/decimal32.c
index 095ab75654..53f29789d7 100644
--- a/libdecnumber/dpd/decimal32.c
+++ b/libdecnumber/dpd/decimal32.c
@@ -39,8 +39,7 @@
 /*								      */
 /* Error handling is the same as decNumber (qv.).		      */
 /* ------------------------------------------------------------------ */
-#include <string.h>	      /* [for memset/memcpy] */
-#include <stdio.h>	      /* [for printf] */
+#include "qemu/osdep.h"
 
 #include "libdecnumber/dconfig.h"
 #define	 DECNUMDIGITS  7      /* make decNumbers with space for 7 */
diff --git a/libdecnumber/dpd/decimal64.c b/libdecnumber/dpd/decimal64.c
index 8256084e90..4816176410 100644
--- a/libdecnumber/dpd/decimal64.c
+++ b/libdecnumber/dpd/decimal64.c
@@ -39,8 +39,7 @@
 /*								      */
 /* Error handling is the same as decNumber (qv.).		      */
 /* ------------------------------------------------------------------ */
-#include <string.h>	      /* [for memset/memcpy] */
-#include <stdio.h>	      /* [for printf] */
+#include "qemu/osdep.h"
 
 #include "libdecnumber/dconfig.h"
 #define	 DECNUMDIGITS 16      /* make decNumbers with space for 16 */