diff --git a/fixincludes/fixincl.x b/fixincludes/fixincl.x
index 16b15c045d0..87175fe0205 100644
--- a/fixincludes/fixincl.x
+++ b/fixincludes/fixincl.x
@@ -2,11 +2,11 @@
  *
  * DO NOT EDIT THIS FILE   (fixincl.x)
  *
- * It has been AutoGen-ed  January  4, 2022 at 10:24:34 AM by AutoGen 5.18.16
+ * It has been AutoGen-ed  January  6, 2022 at 11:59:22 AM by AutoGen 5.18.16
  * From the definitions    inclhack.def
  * and the template file   fixincl
  */
-/* DO NOT SVN-MERGE THIS FILE, EITHER Tue Jan  4 10:24:34 UTC 2022
+/* DO NOT SVN-MERGE THIS FILE, EITHER Thu Jan  6 11:59:22 UTC 2022
  *
  * You must regenerate it.  Use the ./genfixes script.
  *
@@ -15,7 +15,7 @@
  * certain ANSI-incompatible system header files which are fixed to work
  * correctly with ANSI C and placed in a directory that GNU C will search.
  *
- * This file contains 262 fixup descriptions.
+ * This file contains 263 fixup descriptions.
  *
  * See README for more information.
  *
@@ -10325,6 +10325,48 @@ static const char* apzVxworks_Needs_VxworksPatch[] = { sed_cmd_z,
 #include <types/vxTypesOld.h>\n",
     (char*)NULL };
 
+/* * * * * * * * * * * * * * * * * * * * * * * * * *
+ *
+ *  Description of Vxworks_Next_Yvals fix
+ */
+tSCC zVxworks_Next_YvalsName[] =
+     "vxworks_next_yvals";
+
+/*
+ *  File name selection pattern
+ */
+tSCC zVxworks_Next_YvalsList[] =
+  "yvals.h\0";
+/*
+ *  Machine/OS name selection pattern
+ */
+tSCC* apzVxworks_Next_YvalsMachs[] = {
+        "*-*-vxworks*",
+        (const char*)NULL };
+
+/*
+ *  content selection pattern - do fix if pattern found
+ */
+tSCC zVxworks_Next_YvalsSelect0[] =
+       "#include_next <yvals.h>";
+
+#define    VXWORKS_NEXT_YVALS_TEST_CT  1
+static tTestDesc aVxworks_Next_YvalsTests[] = {
+  { TT_EGREP,    zVxworks_Next_YvalsSelect0, (regex_t*)NULL }, };
+
+/*
+ *  Fix Command Arguments for Vxworks_Next_Yvals
+ */
+static const char* apzVxworks_Next_YvalsPatch[] = {
+    "format",
+    "#if 0 /* GCC does not provide yvals.h.  */\n\
+%1",
+    "#if .*\n\
+/\\* .*\n\
+(#include_next <yvals.h>\n\
+)",
+    (char*)NULL };
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * *
  *
  *  Description of Vxworks_Regs fix
@@ -10648,9 +10690,9 @@ static const char* apzX11_SprintfPatch[] = {
  *
  *  List of all fixes
  */
-#define REGEX_COUNT          300
+#define REGEX_COUNT          301
 #define MACH_LIST_SIZE_LIMIT 187
-#define FIX_COUNT            262
+#define FIX_COUNT            263
 
 /*
  *  Enumerate the fixes
@@ -10910,6 +10952,7 @@ typedef enum {
     VXWORKS_POSIX_MKDIR_FIXIDX,
     VXWORKS_NEEDS_VXTYPES_FIXIDX,
     VXWORKS_NEEDS_VXWORKS_FIXIDX,
+    VXWORKS_NEXT_YVALS_FIXIDX,
     VXWORKS_REGS_FIXIDX,
     VXWORKS_TIME_FIXIDX,
     VXWORKS_WRITE_CONST_FIXIDX,
@@ -12191,6 +12234,11 @@ tFixDesc fixDescList[ FIX_COUNT ] = {
      VXWORKS_NEEDS_VXWORKS_TEST_CT, FD_MACH_ONLY,
      aVxworks_Needs_VxworksTests,   apzVxworks_Needs_VxworksPatch, 0 },
 
+  {  zVxworks_Next_YvalsName,    zVxworks_Next_YvalsList,
+     apzVxworks_Next_YvalsMachs,
+     VXWORKS_NEXT_YVALS_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
+     aVxworks_Next_YvalsTests,   apzVxworks_Next_YvalsPatch, 0 },
+
   {  zVxworks_RegsName,    zVxworks_RegsList,
      apzVxworks_RegsMachs,
      VXWORKS_REGS_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
diff --git a/fixincludes/inclhack.def b/fixincludes/inclhack.def
index 8f056adef68..4643678026d 100644
--- a/fixincludes/inclhack.def
+++ b/fixincludes/inclhack.def
@@ -5210,6 +5210,28 @@ fix = {
     "# define\t__INCstath <sys/stat.h>";
 };
 
+/*
+ * yvals.h on VxWorks-6 expects the toolchain to provide its own
+ * version of the header, which we don't do.  Arrange to fallback
+ * on the system definition.
+ */
+fix = {
+    hackname  = vxworks_next_yvals;
+    mach      = "*-*-vxworks*";
+    files     = yvals.h;
+    select    = "#include_next <yvals.h>";
+    c_fix     = format;
+    c_fix_arg = "#if 0 /* GCC does not provide yvals.h.  */\n%1";
+    c_fix_arg = "#if .*\n"
+                "/\\* .*\n"
+                "(#include_next <yvals.h>\n)";
+
+    test_text = "#if (defined(__cplusplus) && defined(__GNUC__))\n"
+                "/* GCC C++ has it's own yvals.h */\n"
+                "#include_next <yvals.h>\n"
+                "#else\n";
+};
+
 /*
  *  Make it so VxWorks does not include gcc/regs.h accidentally
  */
diff --git a/fixincludes/tests/base/yvals.h b/fixincludes/tests/base/yvals.h
new file mode 100644
index 00000000000..ea384d9cf9e
--- /dev/null
+++ b/fixincludes/tests/base/yvals.h
@@ -0,0 +1,17 @@
+/*  DO NOT EDIT THIS FILE.
+
+    It has been auto-edited by fixincludes from:
+
+	"fixinc/tests/inc/yvals.h"
+
+    This had to be done to correct non-standard usages in the
+    original, manufacturer supplied header file.  */
+
+
+
+#if defined( VXWORKS_NEXT_YVALS_CHECK )
+#if 0 /* GCC does not provide yvals.h.  */
+#include_next <yvals.h>
+#else
+
+#endif  /* VXWORKS_NEXT_YVALS_CHECK */