--- fixincludes/inclhack.def.jj	2022-09-29 22:18:47.974402688 +0200
+++ fixincludes/inclhack.def	2022-09-29 22:22:48.151145670 +0200
@@ -2131,6 +2131,23 @@ fix = {
 	EOT;
 };
 
+fix = {
+    hackname  = glibc_cxx_floatn_5;
+    files     = bits/floatn.h, bits/floatn-common.h, "*/bits/floatn.h", "*/bits/floatn-common.h";
+    select    = "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n"
+		"([ \t]*#[ \t]+error \"_Float128[xX] supported but no )";
+    c_fix     = format;
+    c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 0))\n%2";
+    test_text = <<-EOT
+	#  if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+	#   error "_Float128X supported but no constant suffix"
+	#  endif
+	#  if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+	#   error "_Float128x supported but no type"
+	#  endif
+	EOT;
+};
+
 /*  glibc-2.3.5 defines pthread mutex initializers incorrectly,
  *  so we replace them with versions that correspond to the
  *  definition.
--- fixincludes/fixincl.x.jj	2022-09-29 22:18:47.975402675 +0200
+++ fixincludes/fixincl.x	2022-09-29 22:22:55.675909244 +0200
@@ -2,11 +2,11 @@
  *
  * DO NOT EDIT THIS FILE   (fixincl.x)
  *
- * It has been AutoGen-ed  September 28, 2022 at 07:56:15 PM by AutoGen 5.18.16
+ * It has been AutoGen-ed  September 29, 2022 at 10:22:55 PM by AutoGen 5.18.16
  * From the definitions    inclhack.def
  * and the template file   fixincl
  */
-/* DO NOT SVN-MERGE THIS FILE, EITHER Wed Sep 28 19:56:15 CEST 2022
+/* DO NOT SVN-MERGE THIS FILE, EITHER Thu Sep 29 22:22:55 CEST 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 271 fixup descriptions.
+ * This file contains 272 fixup descriptions.
  *
  * See README for more information.
  *
@@ -4273,6 +4273,43 @@ static const char* apzGlibc_Cxx_Floatn_4
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * *
  *
+ *  Description of Glibc_Cxx_Floatn_5 fix
+ */
+tSCC zGlibc_Cxx_Floatn_5Name[] =
+     "glibc_cxx_floatn_5";
+
+/*
+ *  File name selection pattern
+ */
+tSCC zGlibc_Cxx_Floatn_5List[] =
+  "bits/floatn.h\0bits/floatn-common.h\0*/bits/floatn.h\0*/bits/floatn-common.h\0";
+/*
+ *  Machine/OS name selection pattern
+ */
+#define apzGlibc_Cxx_Floatn_5Machs (const char**)NULL
+
+/*
+ *  content selection pattern - do fix if pattern found
+ */
+tSCC zGlibc_Cxx_Floatn_5Select0[] =
+       "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\
+([ \t]*#[ \t]+error \"_Float128[xX] supported but no )";
+
+#define    GLIBC_CXX_FLOATN_5_TEST_CT  1
+static tTestDesc aGlibc_Cxx_Floatn_5Tests[] = {
+  { TT_EGREP,    zGlibc_Cxx_Floatn_5Select0, (regex_t*)NULL }, };
+
+/*
+ *  Fix Command Arguments for Glibc_Cxx_Floatn_5
+ */
+static const char* apzGlibc_Cxx_Floatn_5Patch[] = {
+    "format",
+    "%1(defined __cplusplus && !__GNUC_PREREQ (13, 0))\n\
+%2",
+    (char*)NULL };
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * *
+ *
  *  Description of Glibc_Mutex_Init fix
  */
 tSCC zGlibc_Mutex_InitName[] =
@@ -11038,9 +11075,9 @@ static const char* apzX11_SprintfPatch[]
  *
  *  List of all fixes
  */
-#define REGEX_COUNT          309
+#define REGEX_COUNT          310
 #define MACH_LIST_SIZE_LIMIT 187
-#define FIX_COUNT            271
+#define FIX_COUNT            272
 
 /*
  *  Enumerate the fixes
@@ -11147,6 +11184,7 @@ typedef enum {
     GLIBC_CXX_FLOATN_2_FIXIDX,
     GLIBC_CXX_FLOATN_3_FIXIDX,
     GLIBC_CXX_FLOATN_4_FIXIDX,
+    GLIBC_CXX_FLOATN_5_FIXIDX,
     GLIBC_MUTEX_INIT_FIXIDX,
     GLIBC_STDINT_FIXIDX,
     GLIBC_STRNCPY_FIXIDX,
@@ -11825,6 +11863,11 @@ tFixDesc fixDescList[ FIX_COUNT ] = {
      GLIBC_CXX_FLOATN_4_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
      aGlibc_Cxx_Floatn_4Tests,   apzGlibc_Cxx_Floatn_4Patch, 0 },
 
+  {  zGlibc_Cxx_Floatn_5Name,    zGlibc_Cxx_Floatn_5List,
+     apzGlibc_Cxx_Floatn_5Machs,
+     GLIBC_CXX_FLOATN_5_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
+     aGlibc_Cxx_Floatn_5Tests,   apzGlibc_Cxx_Floatn_5Patch, 0 },
+
   {  zGlibc_Mutex_InitName,    zGlibc_Mutex_InitList,
      apzGlibc_Mutex_InitMachs,
      GLIBC_MUTEX_INIT_TEST_CT, FD_MACH_ONLY,
--- fixincludes/tests/base/bits/floatn.h.jj	2022-09-29 22:18:47.976402661 +0200
+++ fixincludes/tests/base/bits/floatn.h	2022-09-29 22:23:19.703717787 +0200
@@ -84,3 +84,13 @@ typedef long double _Float128;
 #   define __CFLOAT128 _Complex long double
 #  endif
 #endif  /* GLIBC_CXX_FLOATN_4_CHECK */
+
+
+#if defined( GLIBC_CXX_FLOATN_5_CHECK )
+#  if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 0))
+#   error "_Float128X supported but no constant suffix"
+#  endif
+#  if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 0))
+#   error "_Float128x supported but no type"
+#  endif
+#endif  /* GLIBC_CXX_FLOATN_5_CHECK */
