diff --git a/configure.ac b/configure.ac
index 307bfd6..09b45e9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@ if test "x$CC_FOR_BUILD" = x; then
     fi
 fi
 
-AC_CHECK_FUNCS([strdup strcasecmp])
+AC_CHECK_FUNCS([strcasecmp])
 XORG_CHECK_MALLOC_ZERO
 XORG_CWARNFLAGS
 
diff --git a/src/xkbcomp/compat.c b/src/xkbcomp/compat.c
index 077ffbe..c3fdbde 100644
--- a/src/xkbcomp/compat.c
+++ b/src/xkbcomp/compat.c
@@ -718,7 +718,7 @@ HandleCompatMapFile(XkbFile * file,
 
     if (merge == MergeDefault)
         merge = MergeAugment;
-    info->name = uStringDup(file->name);
+    info->name = _XkbDupString(file->name);
     stmt = file->defs;
     while (stmt)
     {
diff --git a/src/xkbcomp/geometry.c b/src/xkbcomp/geometry.c
index 182c76c..92717d6 100644
--- a/src/xkbcomp/geometry.c
+++ b/src/xkbcomp/geometry.c
@@ -752,7 +752,7 @@ AddProperty(GeometryInfo * info, PropertyInfo * new)
             }
             if (old->value)
                 uFree(old->value);
-            old->value = uStringDup(new->value);
+            old->value = _XkbDupString(new->value);
             return True;
         }
         if (((old->defs.fileID == new->defs.fileID) && (warningLevel > 0))
@@ -768,8 +768,8 @@ AddProperty(GeometryInfo * info, PropertyInfo * new)
     if ((new = NextProperty(info)) == NULL)
         return False;
     new->defs.next = NULL;
-    new->name = uStringDup(old->name);
-    new->value = uStringDup(old->value);
+    new->name = _XkbDupString(old->name);
+    new->value = _XkbDupString(old->value);
     return True;
 }
 
@@ -1761,7 +1761,7 @@ SetLogoDoodadField(DoodadInfo * di,
             return ReportBadType(typeName, field, ddText(di),
                                  "string");
         }
-        di->logoName = uStringDup(tmp.str);
+        di->logoName = _XkbDupString(tmp.str);
         return True;
     }
     return ReportBadField(typeName, field, ddText(di));
@@ -2805,7 +2805,7 @@ HandleGeometryFile(XkbFile * file,
 
     if (merge == MergeDefault)
         merge = MergeAugment;
-    info->name = uStringDup(file->name);
+    info->name = _XkbDupString(file->name);
     stmt = file->defs;
     while (stmt)
     {
@@ -3632,7 +3632,7 @@ CompileGeometry(XkbFile *file, XkbcDescPtr xkb, unsigned merge)
         }
         if (info.fontSpec != None)
             geom->label_font =
-                uStringDup(XkbcAtomGetString(info.fontSpec));
+                _XkbDupString(XkbcAtomGetString(info.fontSpec));
         else
             geom->label_font = FontFromParts(info.font, info.fontWeight,
                                              info.fontSlant,
diff --git a/src/xkbcomp/keycodes.c b/src/xkbcomp/keycodes.c
index e1b7028..95437b0 100644
--- a/src/xkbcomp/keycodes.c
+++ b/src/xkbcomp/keycodes.c
@@ -753,7 +753,7 @@ HandleKeycodesFile(XkbFile * file,
 {
     ParseCommon *stmt;
 
-    info->name = uStringDup(file->name);
+    info->name = _XkbDupString(file->name);
     stmt = file->defs;
     while (stmt)
     {
diff --git a/src/xkbcomp/keytypes.c b/src/xkbcomp/keytypes.c
index 377081d..d82bf47 100644
--- a/src/xkbcomp/keytypes.c
+++ b/src/xkbcomp/keytypes.c
@@ -131,7 +131,7 @@ InitKeyTypesInfo(KeyTypesInfo * info, XkbcDescPtr xkb, KeyTypesInfo * from)
     tok_TWO_LEVEL = XkbcInternAtom("TWO_LEVEL", False);
     tok_ALPHABETIC = XkbcInternAtom("ALPHABETIC", False);
     tok_KEYPAD = XkbcInternAtom("KEYPAD", False);
-    info->name = uStringDup("default");
+    info->name = strdup("default");
     info->errorCount = 0;
     info->stdPresent = 0;
     info->nTypes = 0;
@@ -1066,7 +1066,7 @@ HandleKeyTypesFile(XkbFile * file,
 {
     ParseCommon *stmt;
 
-    info->name = uStringDup(file->name);
+    info->name = _XkbDupString(file->name);
     stmt = file->defs;
     while (stmt)
     {
diff --git a/src/xkbcomp/parseutils.c b/src/xkbcomp/parseutils.c
index 1f5f172..cdf4b36 100644
--- a/src/xkbcomp/parseutils.c
+++ b/src/xkbcomp/parseutils.c
@@ -657,7 +657,7 @@ IncludeCreate(char *str, unsigned merge)
     incl = first = NULL;
     file = map = NULL;
     tmp = str;
-    stmt = uStringDup(str);
+    stmt = _XkbDupString(str);
     while ((tmp) && (*tmp))
     {
         if (XkbParseIncludeMap(&tmp, &file, &map, &nextop, &extra_data))
@@ -812,7 +812,7 @@ CreateXKBFile(int type, char *name, ParseCommon * defs, unsigned flags)
         XkbcEnsureSafeMapName(name);
         bzero(file, sizeof(XkbFile));
         file->type = type;
-        file->topName = uStringDup(name);
+        file->topName = _XkbDupString(name);
         file->name = name;
         file->defs = defs;
         file->id = fileID++;
diff --git a/src/xkbcomp/symbols.c b/src/xkbcomp/symbols.c
index 49d912a..14f2f2f 100644
--- a/src/xkbcomp/symbols.c
+++ b/src/xkbcomp/symbols.c
@@ -1637,7 +1637,7 @@ HandleSymbolsFile(XkbFile * file,
 {
     ParseCommon *stmt;
 
-    info->name = uStringDup(file->name);
+    info->name = _XkbDupString(file->name);
     stmt = file->defs;
     while (stmt)
     {
diff --git a/src/xkbcomp/utils.c b/src/xkbcomp/utils.c
index 3c4d527..7cc0049 100644
--- a/src/xkbcomp/utils.c
+++ b/src/xkbcomp/utils.c
@@ -397,20 +397,6 @@ uFinishUp(void)
 
 /***====================================================================***/
 
-#ifndef HAVE_STRDUP
-char *
-uStringDup(const char *str)
-{
-    char *rtrn;
-
-    if (str == NULL)
-        return NULL;
-    rtrn = (char *) uAlloc(strlen(str) + 1);
-    strcpy(rtrn, str);
-    return rtrn;
-}
-#endif
-
 #ifndef HAVE_STRCASECMP
 int
 uStrCaseCmp(const char *str1, const char *str2)
diff --git a/src/xkbcomp/utils.h b/src/xkbcomp/utils.h
index a9cb62a..de3f128 100644
--- a/src/xkbcomp/utils.h
+++ b/src/xkbcomp/utils.h
@@ -174,12 +174,6 @@ uStrCaseCmp(const char *s1, const char *s2);
 extern int
 uStrCasePrefix(const char *p, char *str);
 #endif
-#ifdef HAVE_STRDUP
-#define	uStringDup(s1)		((s1) ? strdup(s1) : NULL)
-#else
-extern char *
-uStringDup(const char *s);
-#endif
 
 /***====================================================================***/
 
diff --git a/src/xkbcomp/xkbcomp.c b/src/xkbcomp/xkbcomp.c
index d2fa522..2f3329a 100644
--- a/src/xkbcomp/xkbcomp.c
+++ b/src/xkbcomp/xkbcomp.c
@@ -27,7 +27,6 @@ authorization from the authors.
 #include <limits.h>
 #include "X11/extensions/XKBcommon.h"
 #include <X11/extensions/XKM.h>
-#include "XKBcommonint.h"
 #include "xkbcomp.h"
 #include "parseutils.h"
 #include "utils.h"
diff --git a/src/xkbcomp/xkbcomp.h b/src/xkbcomp/xkbcomp.h
index 0961457..30bc6b2 100644
--- a/src/xkbcomp/xkbcomp.h
+++ b/src/xkbcomp/xkbcomp.h
@@ -38,6 +38,7 @@
 
 #include <X11/extensions/XKM.h>
 #include "X11/extensions/XKBcommon.h"
+#include "XKBcommonint.h"
 
 extern char *scanFile;
 
diff --git a/src/xkbcomp/xkbpath.c b/src/xkbcomp/xkbpath.c
index 36228df..45ce141 100644
--- a/src/xkbcomp/xkbpath.c
+++ b/src/xkbcomp/xkbpath.c
@@ -115,7 +115,7 @@ XkbParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
         if (tmp != NULL)
         {
             *tmp++ = '\0';
-            *extra_data = uStringDup(tmp);
+            *extra_data = _XkbDupString(tmp);
         }
         else
         {
@@ -124,7 +124,7 @@ XkbParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
         tmp = strchr(str, '(');
         if (tmp == NULL)
         {
-            *file_rtrn = uStringDup(str);
+            *file_rtrn = _XkbDupString(str);
             *map_rtrn = NULL;
         }
         else if (str[0] == '(')
@@ -135,7 +135,7 @@ XkbParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
         else
         {
             *tmp++ = '\0';
-            *file_rtrn = uStringDup(str);
+            *file_rtrn = _XkbDupString(str);
             str = tmp;
             tmp = strchr(str, ')');
             if ((tmp == NULL) || (tmp[1] != '\0'))
@@ -145,7 +145,7 @@ XkbParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
                 return False;
             }
             *tmp++ = '\0';
-            *map_rtrn = uStringDup(str);
+            *map_rtrn = _XkbDupString(str);
         }
     }
     if (*nextop_rtrn == '\0')
diff --git a/src/xkbcomp/xkbscan.c b/src/xkbcomp/xkbscan.c
index 27c73da..a9eb23b 100644
--- a/src/xkbcomp/xkbscan.c
+++ b/src/xkbcomp/xkbscan.c
@@ -353,7 +353,7 @@ yyGetString(void)
         buf[nInBuf++] = '\0';
         if (scanStr)
             uFree(scanStr);
-        scanStr = (char *) uStringDup(buf);
+        scanStr = strdup(buf);
         scanStrLine = lineNum;
         return STRING;
     }
@@ -434,7 +434,7 @@ yyGetKeyName(void)
         buf[nInBuf++] = '\0';
         if (scanStr)
             uFree(scanStr);
-        scanStr = (char *) uStringDup(buf);
+        scanStr = strdup(buf);
         scanStrLine = lineNum;
         return KEYNAME;
     }
@@ -568,7 +568,7 @@ yyGetIdent(int first)
     {
         if (scanStr)
             uFree(scanStr);
-        scanStr = (char *) uStringDup(buf);
+        scanStr = strdup(buf);
         scanStrLine = lineNum;
         rtrn = IDENT;
     }