diff --git a/.fmf/version b/.fmf/version
deleted file mode 100644
index d00491f..0000000
--- a/.fmf/version
+++ /dev/null
@@ -1 +0,0 @@
-1
diff --git a/.gitignore b/.gitignore
index 24dfd22..5108e89 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,3 @@ libffi-3.0.9.tar.gz
 /libffi-3.4.2.tar.gz
 /libffi-3.4.4.tar.gz
 /libffi-3.4.6.tar.gz
-/libffi-3.4.7.tar.gz
-/libffi-3.4.8.tar.gz
-/libffi-3.5.1.tar.gz
-/libffi-3.5.2.tar.gz
diff --git a/0001-Fix-bti-support-830.patch b/0001-Fix-bti-support-830.patch
new file mode 100644
index 0000000..22f68d6
--- /dev/null
+++ b/0001-Fix-bti-support-830.patch
@@ -0,0 +1,82 @@
+From f64141ee3f9e455a060bd09e9ab72b6c94653d7c Mon Sep 17 00:00:00 2001
+From: Bill Roberts <152999275+billatarm@users.noreply.github.com>
+Date: Tue, 19 Mar 2024 11:44:55 -0500
+Subject: [PATCH 1/7] Fix bti support (#830)
+Content-type: text/plain; charset=UTF-8
+
+* bti: add identifier to ffi_closure_SYSV_V_alt
+
+This was missing BTI_C identifier.
+
+Old Code:
+ffi_closure_SYSV_V_alt:
+0000fffff7f70500:   ldr     x17, [sp, #8]
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+* testsuite: fix whitespace in Makefile.am
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+* aarch64: correct comment describing BTI
+
+The comment is incorrect, BTI is enabled per mapping via mprotect with
+PROT_BTI flag set, not per-process. When the loader loads the library,
+if the GNU Notes section is missing this, PROT_BTI will not be enabled
+for that mapping, but is independent of other mappings.
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+---------
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+---
+ src/aarch64/sysv.S    | 4 +++-
+ testsuite/Makefile.am | 2 +-
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S
+index fdd0e8b..60cfa50 100644
+--- a/src/aarch64/sysv.S
++++ b/src/aarch64/sysv.S
+@@ -68,7 +68,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+ #define BTI_J hint #36
+ /*
+  * The ELF Notes section needs to indicate if BTI is supported, as the first ELF loaded that doesn't
+- * declare this support disables it for the whole process.
++ * declare this support disables it for memory region containing the loaded library.
+  */
+ # define GNU_PROPERTY_AARCH64_BTI (1 << 0)         /* Has Branch Target Identification */
+ 	.text
+@@ -527,6 +527,7 @@ L(do_closure):
+ #if defined(FFI_EXEC_STATIC_TRAMP)
+ 	.align 4
+ CNAME(ffi_closure_SYSV_V_alt):
++	BTI_C
+ 	/* See the comments above trampoline_code_table. */
+ 	ldr	x17, [sp, #8]			/* Load closure in x17 */
+ 	add	sp, sp, #16			/* Restore the stack */
+@@ -541,6 +542,7 @@ CNAME(ffi_closure_SYSV_V_alt):
+ 
+ 	.align 4
+ CNAME(ffi_closure_SYSV_alt):
++	BTI_C
+ 	/* See the comments above trampoline_code_table. */
+ 	ldr	x17, [sp, #8]			/* Load closure in x17 */
+ 	add	sp, sp, #16			/* Restore the stack */
+diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
+index d286cf7..6ba98e1 100644
+--- a/testsuite/Makefile.am
++++ b/testsuite/Makefile.am
+@@ -8,7 +8,7 @@ CLEANFILES = *.exe core* *.log *.sum
+ 
+ EXTRA_DIST = config/default.exp emscripten/build.sh emscripten/conftest.py \
+ 	emscripten/node-tests.sh emscripten/test.html emscripten/test_libffi.py \
+-  emscripten/build-tests.sh lib/libffi.exp lib/target-libpath.exp \
++	emscripten/build-tests.sh lib/libffi.exp lib/target-libpath.exp \
+ 	lib/wrapper.exp libffi.bhaible/Makefile libffi.bhaible/README \
+ 	libffi.bhaible/alignof.h libffi.bhaible/bhaible.exp libffi.bhaible/test-call.c \
+ 	libffi.bhaible/test-callback.c libffi.bhaible/testcases.c libffi.call/align_mixed.c \
+-- 
+2.46.0
+
diff --git a/0002-ffi-fix-spelling-mistake-833.patch b/0002-ffi-fix-spelling-mistake-833.patch
new file mode 100644
index 0000000..053fcce
--- /dev/null
+++ b/0002-ffi-fix-spelling-mistake-833.patch
@@ -0,0 +1,27 @@
+From 38732240c125b6af9db66d940c0725a69292cc49 Mon Sep 17 00:00:00 2001
+From: Bill Roberts <152999275+billatarm@users.noreply.github.com>
+Date: Sat, 1 Jun 2024 12:33:28 -0500
+Subject: [PATCH 2/7] ffi: fix spelling mistake (#833)
+Content-type: text/plain; charset=UTF-8
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+---
+ src/aarch64/ffi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/aarch64/ffi.c b/src/aarch64/ffi.c
+index 8661a35..b13738e 100644
+--- a/src/aarch64/ffi.c
++++ b/src/aarch64/ffi.c
+@@ -682,7 +682,7 @@ ffi_call_int (ffi_cif *cif, void (*fn)(void), void *orig_rvalue,
+   else if (flags & AARCH64_RET_NEED_COPY)
+     rsize = 16;
+ 
+-  /* Allocate consectutive stack for everything we'll need.
++  /* Allocate consecutive stack for everything we'll need.
+      The frame uses 40 bytes for: lr, fp, rvalue, flags, sp */
+   context = alloca (sizeof(struct call_context) + stack_bytes + 40 + rsize);
+   stack = context + 1;
+-- 
+2.46.0
+
diff --git a/0003-aarch64-support-pointer-authentication-834.patch b/0003-aarch64-support-pointer-authentication-834.patch
new file mode 100644
index 0000000..0386ada
--- /dev/null
+++ b/0003-aarch64-support-pointer-authentication-834.patch
@@ -0,0 +1,333 @@
+From 45d284f2d066cc3a080c5be88e51b4d934349797 Mon Sep 17 00:00:00 2001
+From: Bill Roberts <152999275+billatarm@users.noreply.github.com>
+Date: Sat, 1 Jun 2024 12:34:53 -0500
+Subject: [PATCH 3/7] aarch64: support pointer authentication (#834)
+Content-type: text/plain; charset=UTF-8
+
+* aarch64: fix callstack in ffi_call_SYSV
+
+The debug stack gets corrupted between the frame and stack pivots, update
+the CFI directives so the call stack stays correct in the debugger.
+
+str     x9, [x1, #32] // stack is ffi_call_SYSV() -> ffi_call_int() -> ffi_call_int() -> main() (good)
+mov     x29, x1       // stack is ffi_call_SYSV() -> ffi_call_int() -> ffi_call_int() -> ffi_call() -> main() (bad)
+mov     sp, x0        // stack is ffi_call_SYSV() -> ffi_call_int() -> ffi_call_int() -> main() (good)
+
+The CFA data needs to be updated around the pivots, after this patch the
+callstack stays correct.
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+* aarch64: remove uneeded CFI directive
+
+This directive doesn't actually set the CFA to anything valid, and
+during unwinding this isn't even used. Note that the PAC/Darwin usage
+is quite suspect as well, as the CFA is either x1 or x29 after the frame
+pivot, and the CFA address is what's used as the modifier when verifying
+the PAC. At least this is the behavior on Linux with PAC, I need to
+verify ARME ABI unwinding. So for now leave Darwin as is.
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+* ptrauth: rename define for clarity
+
+Rename the HAVE_PTRAUTH define for clarity that its associated with the
+ARM64E ABI and not the ARM64 ABI that can be supported on Linux and
+enabled with -mbranch-protection=standard.
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+* aarch64: add PAC support to ffi_call_SYSV
+
+Support AARCH64 Pointer Authentication Codes (PAC) within ffi_call_SYSV
+and support exception unwinding.
+
+The Linux ABI for PAC is to use paciasp/autiasp instructions which also
+have hint space equivelent instructions. They sign the LR (x30) with the
+A key and the current stack pointer as the salt. Note that this can also be
+configured to use the B key and will use pacibsp/autibsp hint instructions.
+
+The Linux ABI for exception frame data when PAC is enabled assumes that the
+Connonical Frame Address, or CFA is equal to the stack pointer. I.E sp is
+equal to x29 (fp). When the unwinder is invoked the cfa will point to
+the frame which will include the *signed* return address from the LR.
+This will then be passed to __builtin_aarch64_autia1716 where the CFA
+will be used as the salt and stored to register x16 and register x17
+will contain the signed address to demangle. This can be noted in:
+  - https://github.com/gcc-mirror/gcc/blob/d6d7afcdbc04adb0ec42a44b2d7e05600945af42/libgcc/config/aarch64/aarch64-unwind.h#L56
+
+The other required portion of this is to indicate to the unwinder that
+this is a signed address that needs to go the special demangle route in
+the unwinder. This is accomplished by using CFI directive "cfi_window_save"
+which marks that frame as being signed.
+
+Putting all of this together is a bit tricky, as the internals of
+ffi_call_SYSV the callee allocates its stack and frame and passes it in
+arg1 (x0) and arg2 (x1) to the called function, where that function
+pivots its stack, so care must be taken to get the sp == fp before
+paciasp is called and also restore that state before autiasp is called.
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+
+---------
+
+Signed-off-by: Bill Roberts <bill.roberts@arm.com>
+---
+ configure.ac           |  6 ++--
+ include/ffi_cfi.h      |  2 ++
+ src/aarch64/ffi.c      |  4 +--
+ src/aarch64/internal.h | 76 ++++++++++++++++++++++++++++++++----------
+ src/aarch64/sysv.S     | 20 ++++++-----
+ src/closures.c         |  6 ++--
+ 6 files changed, 81 insertions(+), 33 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 816bfd6..b35a999 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -189,17 +189,17 @@ AC_CACHE_CHECK([whether compiler supports pointer authentication],
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
+ #ifdef __clang__
+ # if __has_feature(ptrauth_calls)
+-#  define HAVE_PTRAUTH 1
++#  define HAVE_ARM64E_PTRAUTH 1
+ # endif
+ #endif
+ 
+-#ifndef HAVE_PTRAUTH
++#ifndef HAVE_ARM64E_PTRAUTH
+ # error Pointer authentication not supported
+ #endif
+ 		   ]])],[libffi_cv_as_ptrauth=yes],[libffi_cv_as_ptrauth=no])
+ ])
+ if test "x$libffi_cv_as_ptrauth" = xyes; then
+-    AC_DEFINE(HAVE_PTRAUTH, 1,
++    AC_DEFINE(HAVE_ARM64E_PTRAUTH, 1,
+ 	      [Define if your compiler supports pointer authentication.])
+ fi
+ 
+diff --git a/include/ffi_cfi.h b/include/ffi_cfi.h
+index f4c292d..8565663 100644
+--- a/include/ffi_cfi.h
++++ b/include/ffi_cfi.h
+@@ -49,6 +49,7 @@
+ # define cfi_personality(enc, exp)	.cfi_personality enc, exp
+ # define cfi_lsda(enc, exp)		.cfi_lsda enc, exp
+ # define cfi_escape(...)		.cfi_escape __VA_ARGS__
++# define cfi_window_save		.cfi_window_save
+ 
+ #else
+ 
+@@ -71,6 +72,7 @@
+ # define cfi_personality(enc, exp)
+ # define cfi_lsda(enc, exp)
+ # define cfi_escape(...)
++# define cfi_window_save
+ 
+ #endif /* HAVE_AS_CFI_PSEUDO_OP */
+ #endif /* FFI_CFI_H */
+diff --git a/src/aarch64/ffi.c b/src/aarch64/ffi.c
+index b13738e..964934d 100644
+--- a/src/aarch64/ffi.c
++++ b/src/aarch64/ffi.c
+@@ -63,7 +63,7 @@ struct call_context
+ #if FFI_EXEC_TRAMPOLINE_TABLE
+ 
+ #ifdef __MACH__
+-#ifdef HAVE_PTRAUTH
++#ifdef HAVE_ARM64E_PTRAUTH
+ #include <ptrauth.h>
+ #endif
+ #include <mach/vm_param.h>
+@@ -877,7 +877,7 @@ ffi_prep_closure_loc (ffi_closure *closure,
+ 
+ #if FFI_EXEC_TRAMPOLINE_TABLE
+ # ifdef __MACH__
+-#  ifdef HAVE_PTRAUTH
++#  ifdef HAVE_ARM64E_PTRAUTH
+   codeloc = ptrauth_auth_data(codeloc, ptrauth_key_function_pointer, 0);
+ #  endif
+   void **config = (void **)((uint8_t *)codeloc - PAGE_MAX_SIZE);
+diff --git a/src/aarch64/internal.h b/src/aarch64/internal.h
+index b5d102b..c39f9cb 100644
+--- a/src/aarch64/internal.h
++++ b/src/aarch64/internal.h
+@@ -81,20 +81,62 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+ /* Helpers for writing assembly compatible with arm ptr auth */
+ #ifdef LIBFFI_ASM
+ 
+-#ifdef HAVE_PTRAUTH
+-#define SIGN_LR pacibsp
+-#define SIGN_LR_WITH_REG(x) pacib lr, x
+-#define AUTH_LR_AND_RET retab
+-#define AUTH_LR_WITH_REG(x) autib lr, x
+-#define BRANCH_AND_LINK_TO_REG blraaz
+-#define BRANCH_TO_REG braaz
+-#else
+-#define SIGN_LR
+-#define SIGN_LR_WITH_REG(x)
+-#define AUTH_LR_AND_RET ret
+-#define AUTH_LR_WITH_REG(x)
+-#define BRANCH_AND_LINK_TO_REG blr
+-#define BRANCH_TO_REG br
+-#endif
+-
+-#endif
++  #if defined(HAVE_ARM64E_PTRAUTH)
++  /* ARM64E ABI For Darwin */
++  #define SIGN_LR pacibsp
++  #define SIGN_LR_WITH_REG(x) pacib lr, x
++  #define AUTH_LR_AND_RET retab
++  #define AUTH_LR_WITH_REG(x) autib lr, x
++  #define BRANCH_AND_LINK_TO_REG blraaz
++  #define BRANCH_TO_REG braaz
++  #define PAC_CFI_WINDOW_SAVE
++  /* Linux PAC Support */
++  #elif defined(__ARM_FEATURE_PAC_DEFAULT)
++    #define GNU_PROPERTY_AARCH64_POINTER_AUTH (1 << 1)
++    #define PAC_CFI_WINDOW_SAVE cfi_window_save
++    #define TMP_REG x9
++    #define BRANCH_TO_REG br
++    #define BRANCH_AND_LINK_TO_REG blr
++	#define SIGN_LR_LINUX_ONLY SIGN_LR
++    /* Which key to sign with? */
++    #if (__ARM_FEATURE_PAC_DEFAULT & 1) == 1
++      /* Signed with A-key */
++      #define SIGN_LR            hint #25  /* paciasp */
++      #define AUTH_LR            hint #29  /* autiasp */
++    #else
++      /* Signed with B-key */
++      #define SIGN_LR            hint #27  /* pacibsp */
++      #define AUTH_LR            hint #31  /* autibsp */
++    #endif /* __ARM_FEATURE_PAC_DEFAULT */
++    #define AUTH_LR_WITH_REG(x) _auth_lr_with_reg x
++.macro _auth_lr_with_reg modifier
++    mov TMP_REG, sp
++    mov sp, \modifier
++    AUTH_LR
++    mov sp, TMP_REG
++.endm
++  #define SIGN_LR_WITH_REG(x) _sign_lr_with_reg x
++.macro _sign_lr_with_reg modifier
++    mov TMP_REG, sp
++    mov sp, \modifier
++    SIGN_LR
++    mov sp, TMP_REG
++.endm
++  #define AUTH_LR_AND_RET _auth_lr_and_ret modifier
++.macro _auth_lr_and_ret modifier
++    AUTH_LR
++    ret
++.endm
++  #undef TMP_REG
++
++  /* No Pointer Auth */
++  #else
++    #define SIGN_LR
++    #define SIGN_LR_WITH_REG(x)
++    #define AUTH_LR_AND_RET ret
++    #define AUTH_LR_WITH_REG(x)
++    #define BRANCH_AND_LINK_TO_REG blr
++    #define BRANCH_TO_REG br
++    #define PAC_CFI_WINDOW_SAVE
++  #endif /* HAVE_ARM64E_PTRAUTH */
++#endif /* LIBFFI_ASM */
+diff --git a/src/aarch64/sysv.S b/src/aarch64/sysv.S
+index 60cfa50..6a9a561 100644
+--- a/src/aarch64/sysv.S
++++ b/src/aarch64/sysv.S
+@@ -92,27 +92,27 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+ 	cfi_startproc
+ CNAME(ffi_call_SYSV):
+ 	BTI_C
+-	/* Sign the lr with x1 since that is where it will be stored */
++	PAC_CFI_WINDOW_SAVE
++	/* Sign the lr with x1 since that is the CFA which is the modifer used in auth instructions */
+ 	SIGN_LR_WITH_REG(x1)
+ 
+-	/* Use a stack frame allocated by our caller.  */
+-#if defined(HAVE_PTRAUTH) && defined(__APPLE__)
++#if defined(HAVE_ARM64E_PTRAUTH) && defined(__APPLE__)
+ 	/* darwin's libunwind assumes that the cfa is the sp and that's the data
+ 	 * used to sign the lr.  In order to allow unwinding through this
+ 	 * function it is necessary to point the cfa at the signing register.
+ 	 */
+ 	cfi_def_cfa(x1, 0);
+-#else
+-	cfi_def_cfa(x1, 40);
+ #endif
++	/* Use a stack frame allocated by our caller.  */
+ 	stp	x29, x30, [x1]
++	cfi_def_cfa_register(x1)
++	cfi_rel_offset (x29, 0)
++	cfi_rel_offset (x30, 8)
+ 	mov	x9, sp
+ 	str	x9, [x1, #32]
+ 	mov	x29, x1
+-	mov	sp, x0
+ 	cfi_def_cfa_register(x29)
+-	cfi_rel_offset (x29, 0)
+-	cfi_rel_offset (x30, 8)
++	mov	sp, x0
+ 
+ 	mov	x9, x2			/* save fn */
+ 	mov	x8, x3			/* install structure return */
+@@ -326,6 +326,7 @@ CNAME(ffi_closure_SYSV_V):
+ 	cfi_startproc
+ 	BTI_C
+ 	SIGN_LR
++	PAC_CFI_WINDOW_SAVE
+ 	stp     x29, x30, [sp, #-ffi_closure_SYSV_FS]!
+ 	cfi_adjust_cfa_offset (ffi_closure_SYSV_FS)
+ 	cfi_rel_offset (x29, 0)
+@@ -351,6 +352,7 @@ CNAME(ffi_closure_SYSV_V):
+ CNAME(ffi_closure_SYSV):
+ 	BTI_C
+ 	SIGN_LR
++	PAC_CFI_WINDOW_SAVE
+ 	stp     x29, x30, [sp, #-ffi_closure_SYSV_FS]!
+ 	cfi_adjust_cfa_offset (ffi_closure_SYSV_FS)
+ 	cfi_rel_offset (x29, 0)
+@@ -648,6 +650,8 @@ CNAME(ffi_go_closure_SYSV_V):
+ 	cfi_startproc
+ CNAME(ffi_go_closure_SYSV):
+ 	BTI_C
++	SIGN_LR_LINUX_ONLY
++	PAC_CFI_WINDOW_SAVE
+ 	stp     x29, x30, [sp, #-ffi_closure_SYSV_FS]!
+ 	cfi_adjust_cfa_offset (ffi_closure_SYSV_FS)
+ 	cfi_rel_offset (x29, 0)
+diff --git a/src/closures.c b/src/closures.c
+index 67a94a8..02cf78f 100644
+--- a/src/closures.c
++++ b/src/closures.c
+@@ -164,7 +164,7 @@ ffi_tramp_is_present (__attribute__((unused)) void *ptr)
+ 
+ #include <mach/mach.h>
+ #include <pthread.h>
+-#ifdef HAVE_PTRAUTH
++#ifdef HAVE_ARM64E_PTRAUTH
+ #include <ptrauth.h>
+ #endif
+ #include <stdio.h>
+@@ -223,7 +223,7 @@ ffi_trampoline_table_alloc (void)
+   /* Remap the trampoline table on top of the placeholder page */
+   trampoline_page = config_page + PAGE_MAX_SIZE;
+ 
+-#ifdef HAVE_PTRAUTH
++#ifdef HAVE_ARM64E_PTRAUTH
+   trampoline_page_template = (vm_address_t)(uintptr_t)ptrauth_auth_data((void *)&ffi_closure_trampoline_table_page, ptrauth_key_function_pointer, 0);
+ #else
+   trampoline_page_template = (vm_address_t)&ffi_closure_trampoline_table_page;
+@@ -268,7 +268,7 @@ ffi_trampoline_table_alloc (void)
+       ffi_trampoline_table_entry *entry = &table->free_list_pool[i];
+       entry->trampoline =
+ 	(void *) (trampoline_page + (i * FFI_TRAMPOLINE_SIZE));
+-#ifdef HAVE_PTRAUTH
++#ifdef HAVE_ARM64E_PTRAUTH
+       entry->trampoline = ptrauth_sign_unauthenticated(entry->trampoline, ptrauth_key_function_pointer, 0);
+ #endif
+ 
+-- 
+2.46.0
+
diff --git a/0005-Import-from-upstream.patch b/0005-Import-from-upstream.patch
new file mode 100644
index 0000000..5e68935
--- /dev/null
+++ b/0005-Import-from-upstream.patch
@@ -0,0 +1,758 @@
+From 6993bc14dad1cd24294d64bf91e4503a4d7835d6 Mon Sep 17 00:00:00 2001
+From: Anthony Green <green@moxielogic.com>
+Date: Sat, 1 Jun 2024 13:42:29 -0400
+Subject: [PATCH 5/7] Import from upstream
+Content-type: text/plain; charset=UTF-8
+
+---
+ config.guess | 102 +++++++++++++++++-----
+ config.sub   | 241 ++++++++++++++++++++++++++++++++++-----------------
+ 2 files changed, 240 insertions(+), 103 deletions(-)
+
+diff --git a/config.guess b/config.guess
+index 7f76b62..f6d217a 100644
+--- a/config.guess
++++ b/config.guess
+@@ -1,10 +1,10 @@
+ #! /bin/sh
+ # Attempt to guess a canonical system name.
+-#   Copyright 1992-2022 Free Software Foundation, Inc.
++#   Copyright 1992-2024 Free Software Foundation, Inc.
+ 
+ # shellcheck disable=SC2006,SC2268 # see below for rationale
+ 
+-timestamp='2022-01-09'
++timestamp='2024-01-01'
+ 
+ # This file is free software; you can redistribute it and/or modify it
+ # under the terms of the GNU General Public License as published by
+@@ -47,7 +47,7 @@ me=`echo "$0" | sed -e 's,.*/,,'`
+ usage="\
+ Usage: $0 [OPTION]
+ 
+-Output the configuration name of the system \`$me' is run on.
++Output the configuration name of the system '$me' is run on.
+ 
+ Options:
+   -h, --help         print this help, then exit
+@@ -60,13 +60,13 @@ version="\
+ GNU config.guess ($timestamp)
+ 
+ Originally written by Per Bothner.
+-Copyright 1992-2022 Free Software Foundation, Inc.
++Copyright 1992-2024 Free Software Foundation, Inc.
+ 
+ This is free software; see the source for copying conditions.  There is NO
+ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+ 
+ help="
+-Try \`$me --help' for more information."
++Try '$me --help' for more information."
+ 
+ # Parse command line
+ while test $# -gt 0 ; do
+@@ -102,8 +102,8 @@ GUESS=
+ # temporary files to be created and, as you can see below, it is a
+ # headache to deal with in a portable fashion.
+ 
+-# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+-# use `HOST_CC' if defined, but it is deprecated.
++# Historically, 'CC_FOR_BUILD' used to be named 'HOST_CC'. We still
++# use 'HOST_CC' if defined, but it is deprecated.
+ 
+ # Portable tmp directory creation inspired by the Autoconf team.
+ 
+@@ -155,6 +155,9 @@ Linux|GNU|GNU/*)
+ 
+ 	set_cc_for_build
+ 	cat <<-EOF > "$dummy.c"
++	#if defined(__ANDROID__)
++	LIBC=android
++	#else
+ 	#include <features.h>
+ 	#if defined(__UCLIBC__)
+ 	LIBC=uclibc
+@@ -162,6 +165,8 @@ Linux|GNU|GNU/*)
+ 	LIBC=dietlibc
+ 	#elif defined(__GLIBC__)
+ 	LIBC=gnu
++	#elif defined(__LLVM_LIBC__)
++	LIBC=llvm
+ 	#else
+ 	#include <stdarg.h>
+ 	/* First heuristic to detect musl libc.  */
+@@ -169,6 +174,7 @@ Linux|GNU|GNU/*)
+ 	LIBC=musl
+ 	#endif
+ 	#endif
++	#endif
+ 	EOF
+ 	cc_set_libc=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+ 	eval "$cc_set_libc"
+@@ -459,7 +465,7 @@ case $UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION in
+ 		UNAME_RELEASE=`uname -v`
+ 		;;
+ 	esac
+-	# Japanese Language versions have a version number like `4.1.3-JL'.
++	# Japanese Language versions have a version number like '4.1.3-JL'.
+ 	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/-/_/'`
+ 	GUESS=sparc-sun-sunos$SUN_REL
+ 	;;
+@@ -904,7 +910,7 @@ EOF
+ 	fi
+ 	;;
+     *:FreeBSD:*:*)
+-	UNAME_PROCESSOR=`/usr/bin/uname -p`
++	UNAME_PROCESSOR=`uname -p`
+ 	case $UNAME_PROCESSOR in
+ 	    amd64)
+ 		UNAME_PROCESSOR=x86_64 ;;
+@@ -966,11 +972,37 @@ EOF
+ 	GNU_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+ 	GUESS=$UNAME_MACHINE-unknown-$GNU_SYS$GNU_REL-$LIBC
+ 	;;
++    x86_64:[Mm]anagarm:*:*|i?86:[Mm]anagarm:*:*)
++	GUESS="$UNAME_MACHINE-pc-managarm-mlibc"
++	;;
++    *:[Mm]anagarm:*:*)
++	GUESS="$UNAME_MACHINE-unknown-managarm-mlibc"
++	;;
+     *:Minix:*:*)
+ 	GUESS=$UNAME_MACHINE-unknown-minix
+ 	;;
+     aarch64:Linux:*:*)
+-	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
++	set_cc_for_build
++	CPU=$UNAME_MACHINE
++	LIBCABI=$LIBC
++	if test "$CC_FOR_BUILD" != no_compiler_found; then
++	    ABI=64
++	    sed 's/^	    //' << EOF > "$dummy.c"
++	    #ifdef __ARM_EABI__
++	    #ifdef __ARM_PCS_VFP
++	    ABI=eabihf
++	    #else
++	    ABI=eabi
++	    #endif
++	    #endif
++EOF
++	    cc_set_abi=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^ABI' | sed 's, ,,g'`
++	    eval "$cc_set_abi"
++	    case $ABI in
++		eabi | eabihf) CPU=armv8l; LIBCABI=$LIBC$ABI ;;
++	    esac
++	fi
++	GUESS=$CPU-unknown-linux-$LIBCABI
+ 	;;
+     aarch64_be:Linux:*:*)
+ 	UNAME_MACHINE=aarch64_be
+@@ -1036,7 +1068,16 @@ EOF
+     k1om:Linux:*:*)
+ 	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ 	;;
+-    loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*)
++    kvx:Linux:*:*)
++	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
++	;;
++    kvx:cos:*:*)
++	GUESS=$UNAME_MACHINE-unknown-cos
++	;;
++    kvx:mbr:*:*)
++	GUESS=$UNAME_MACHINE-unknown-mbr
++	;;
++    loongarch32:Linux:*:* | loongarch64:Linux:*:*)
+ 	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ 	;;
+     m32r*:Linux:*:*)
+@@ -1151,16 +1192,27 @@ EOF
+ 	;;
+     x86_64:Linux:*:*)
+ 	set_cc_for_build
++	CPU=$UNAME_MACHINE
+ 	LIBCABI=$LIBC
+ 	if test "$CC_FOR_BUILD" != no_compiler_found; then
+-	    if (echo '#ifdef __ILP32__'; echo IS_X32; echo '#endif') | \
+-		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+-		grep IS_X32 >/dev/null
+-	    then
+-		LIBCABI=${LIBC}x32
+-	    fi
++	    ABI=64
++	    sed 's/^	    //' << EOF > "$dummy.c"
++	    #ifdef __i386__
++	    ABI=x86
++	    #else
++	    #ifdef __ILP32__
++	    ABI=x32
++	    #endif
++	    #endif
++EOF
++	    cc_set_abi=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^ABI' | sed 's, ,,g'`
++	    eval "$cc_set_abi"
++	    case $ABI in
++		x86) CPU=i686 ;;
++		x32) LIBCABI=${LIBC}x32 ;;
++	    esac
+ 	fi
+-	GUESS=$UNAME_MACHINE-pc-linux-$LIBCABI
++	GUESS=$CPU-pc-linux-$LIBCABI
+ 	;;
+     xtensa*:Linux:*:*)
+ 	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+@@ -1180,7 +1232,7 @@ EOF
+ 	GUESS=$UNAME_MACHINE-pc-sysv4.2uw$UNAME_VERSION
+ 	;;
+     i*86:OS/2:*:*)
+-	# If we were able to find `uname', then EMX Unix compatibility
++	# If we were able to find 'uname', then EMX Unix compatibility
+ 	# is probably installed.
+ 	GUESS=$UNAME_MACHINE-pc-os2-emx
+ 	;;
+@@ -1321,7 +1373,7 @@ EOF
+ 		GUESS=ns32k-sni-sysv
+ 	fi
+ 	;;
+-    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
++    PENTIUM:*:4.0*:*)	# Unisys 'ClearPath HMP IX 4000' SVR4/MP effort
+ 			# says <Richard.M.Bartel@ccMail.Census.GOV>
+ 	GUESS=i586-unisys-sysv4
+ 	;;
+@@ -1367,8 +1419,11 @@ EOF
+     BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+ 	GUESS=i586-pc-haiku
+ 	;;
+-    x86_64:Haiku:*:*)
+-	GUESS=x86_64-unknown-haiku
++    ppc:Haiku:*:*)	# Haiku running on Apple PowerPC
++	GUESS=powerpc-apple-haiku
++	;;
++    *:Haiku:*:*)	# Haiku modern gcc (not bound by BeOS compat)
++	GUESS=$UNAME_MACHINE-unknown-haiku
+ 	;;
+     SX-4:SUPER-UX:*:*)
+ 	GUESS=sx4-nec-superux$UNAME_RELEASE
+@@ -1540,6 +1595,9 @@ EOF
+     *:Unleashed:*:*)
+ 	GUESS=$UNAME_MACHINE-unknown-unleashed$UNAME_RELEASE
+ 	;;
++    *:Ironclad:*:*)
++	GUESS=$UNAME_MACHINE-unknown-ironclad
++	;;
+ esac
+ 
+ # Do we have a guess based on uname results?
+diff --git a/config.sub b/config.sub
+index 630b5d9..2c6a07a 100755
+--- a/config.sub
++++ b/config.sub
+@@ -1,10 +1,10 @@
+ #! /bin/sh
+ # Configuration validation subroutine script.
+-#   Copyright 1992-2022 Free Software Foundation, Inc.
++#   Copyright 1992-2024 Free Software Foundation, Inc.
+ 
+ # shellcheck disable=SC2006,SC2268 # see below for rationale
+ 
+-timestamp='2022-01-03'
++timestamp='2024-01-01'
+ 
+ # This file is free software; you can redistribute it and/or modify it
+ # under the terms of the GNU General Public License as published by
+@@ -76,13 +76,13 @@ Report bugs and patches to <config-patches@gnu.org>."
+ version="\
+ GNU config.sub ($timestamp)
+ 
+-Copyright 1992-2022 Free Software Foundation, Inc.
++Copyright 1992-2024 Free Software Foundation, Inc.
+ 
+ This is free software; see the source for copying conditions.  There is NO
+ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+ 
+ help="
+-Try \`$me --help' for more information."
++Try '$me --help' for more information."
+ 
+ # Parse command line
+ while test $# -gt 0 ; do
+@@ -130,7 +130,7 @@ IFS=$saved_IFS
+ # Separate into logical components for further validation
+ case $1 in
+ 	*-*-*-*-*)
+-		echo Invalid configuration \`"$1"\': more than four components >&2
++		echo "Invalid configuration '$1': more than four components" >&2
+ 		exit 1
+ 		;;
+ 	*-*-*-*)
+@@ -145,7 +145,8 @@ case $1 in
+ 			nto-qnx* | linux-* | uclinux-uclibc* \
+ 			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
+ 			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
+-			| storm-chaos* | os2-emx* | rtmk-nova*)
++			| storm-chaos* | os2-emx* | rtmk-nova* | managarm-* \
++			| windows-* )
+ 				basic_machine=$field1
+ 				basic_os=$maybe_os
+ 				;;
+@@ -943,7 +944,7 @@ $basic_machine
+ EOF
+ 		IFS=$saved_IFS
+ 		;;
+-	# We use `pc' rather than `unknown'
++	# We use 'pc' rather than 'unknown'
+ 	# because (1) that's what they normally are, and
+ 	# (2) the word "unknown" tends to confuse beginning users.
+ 	i*86 | x86_64)
+@@ -1075,7 +1076,7 @@ case $cpu-$vendor in
+ 	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+ 		cpu=i586
+ 		;;
+-	pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
++	pentiumpro-* | p6-* | 6x86-* | athlon-* | athlon_*-*)
+ 		cpu=i686
+ 		;;
+ 	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+@@ -1126,7 +1127,7 @@ case $cpu-$vendor in
+ 	xscale-* | xscalee[bl]-*)
+ 		cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
+ 		;;
+-	arm64-* | arm64_32-* | aarch64le-*)
++	arm64-* | aarch64le-*)
+ 		cpu=aarch64
+ 		;;
+ 
+@@ -1180,7 +1181,7 @@ case $cpu-$vendor in
+ 		case $cpu in
+ 			1750a | 580 \
+ 			| a29k \
+-			| aarch64 | aarch64_be \
++			| aarch64 | aarch64_be | aarch64c | arm64ec \
+ 			| abacus \
+ 			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
+ 			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
+@@ -1199,50 +1200,29 @@ case $cpu-$vendor in
+ 			| d10v | d30v | dlx | dsp16xx \
+ 			| e2k | elxsi | epiphany \
+ 			| f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
++			| javascript \
+ 			| h8300 | h8500 \
+ 			| hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+ 			| hexagon \
+ 			| i370 | i*86 | i860 | i960 | ia16 | ia64 \
+ 			| ip2k | iq2000 \
+ 			| k1om \
++			| kvx \
+ 			| le32 | le64 \
+ 			| lm32 \
+-			| loongarch32 | loongarch64 | loongarchx32 \
++			| loongarch32 | loongarch64 \
+ 			| m32c | m32r | m32rle \
+ 			| m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \
+ 			| m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \
+ 			| m88110 | m88k | maxq | mb | mcore | mep | metag \
+ 			| microblaze | microblazeel \
+-			| mips | mipsbe | mipseb | mipsel | mipsle \
+-			| mips16 \
+-			| mips64 | mips64eb | mips64el \
+-			| mips64octeon | mips64octeonel \
+-			| mips64orion | mips64orionel \
+-			| mips64r5900 | mips64r5900el \
+-			| mips64vr | mips64vrel \
+-			| mips64vr4100 | mips64vr4100el \
+-			| mips64vr4300 | mips64vr4300el \
+-			| mips64vr5000 | mips64vr5000el \
+-			| mips64vr5900 | mips64vr5900el \
+-			| mipsisa32 | mipsisa32el \
+-			| mipsisa32r2 | mipsisa32r2el \
+-			| mipsisa32r3 | mipsisa32r3el \
+-			| mipsisa32r5 | mipsisa32r5el \
+-			| mipsisa32r6 | mipsisa32r6el \
+-			| mipsisa64 | mipsisa64el \
+-			| mipsisa64r2 | mipsisa64r2el \
+-			| mipsisa64r3 | mipsisa64r3el \
+-			| mipsisa64r5 | mipsisa64r5el \
+-			| mipsisa64r6 | mipsisa64r6el \
+-			| mipsisa64sb1 | mipsisa64sb1el \
+-			| mipsisa64sr71k | mipsisa64sr71kel \
+-			| mipsr5900 | mipsr5900el \
+-			| mipstx39 | mipstx39el \
++			| mips* \
+ 			| mmix \
+ 			| mn10200 | mn10300 \
+ 			| moxie \
+ 			| mt \
+ 			| msp430 \
++			| nanomips* \
+ 			| nds32 | nds32le | nds32be \
+ 			| nfp \
+ 			| nios | nios2 | nios2eb | nios2el \
+@@ -1274,6 +1254,7 @@ case $cpu-$vendor in
+ 			| ubicom32 \
+ 			| v70 | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
+ 			| vax \
++			| vc4 \
+ 			| visium \
+ 			| w65 \
+ 			| wasm32 | wasm64 \
+@@ -1285,7 +1266,7 @@ case $cpu-$vendor in
+ 				;;
+ 
+ 			*)
+-				echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
++				echo "Invalid configuration '$1': machine '$cpu-$vendor' not recognized" 1>&2
+ 				exit 1
+ 				;;
+ 		esac
+@@ -1306,11 +1287,12 @@ esac
+ 
+ # Decode manufacturer-specific aliases for certain operating systems.
+ 
+-if test x$basic_os != x
++if test x"$basic_os" != x
+ then
+ 
+ # First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
+ # set os.
++obj=
+ case $basic_os in
+ 	gnu/linux*)
+ 		kernel=linux
+@@ -1341,6 +1323,10 @@ EOF
+ 		kernel=linux
+ 		os=`echo "$basic_os" | sed -e 's|linux|gnu|'`
+ 		;;
++	managarm*)
++		kernel=managarm
++		os=`echo "$basic_os" | sed -e 's|managarm|mlibc|'`
++		;;
+ 	*)
+ 		kernel=
+ 		os=$basic_os
+@@ -1506,10 +1492,16 @@ case $os in
+ 			os=eabi
+ 			;;
+ 		    *)
+-			os=elf
++			os=
++			obj=elf
+ 			;;
+ 		esac
+ 		;;
++	aout* | coff* | elf* | pe*)
++		# These are machine code file formats, not OSes
++		obj=$os
++		os=
++		;;
+ 	*)
+ 		# No normalization, but not necessarily accepted, that comes below.
+ 		;;
+@@ -1528,12 +1520,15 @@ else
+ # system, and we'll never get to this point.
+ 
+ kernel=
++obj=
+ case $cpu-$vendor in
+ 	score-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	spu-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	*-acorn)
+ 		os=riscix1.2
+@@ -1543,28 +1538,35 @@ case $cpu-$vendor in
+ 		os=gnu
+ 		;;
+ 	arm*-semi)
+-		os=aout
++		os=
++		obj=aout
+ 		;;
+ 	c4x-* | tic4x-*)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	c8051-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	clipper-intergraph)
+ 		os=clix
+ 		;;
+ 	hexagon-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	tic54x-*)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	tic55x-*)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	tic6x-*)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	# This must come before the *-dec entry.
+ 	pdp10-*)
+@@ -1586,19 +1588,24 @@ case $cpu-$vendor in
+ 		os=sunos3
+ 		;;
+ 	m68*-cisco)
+-		os=aout
++		os=
++		obj=aout
+ 		;;
+ 	mep-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	mips*-cisco)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+-	mips*-*)
+-		os=elf
++	mips*-*|nanomips*-*)
++		os=
++		obj=elf
+ 		;;
+ 	or32-*)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	*-tti)	# must be before sparc entry or we get the wrong os.
+ 		os=sysv3
+@@ -1607,7 +1614,8 @@ case $cpu-$vendor in
+ 		os=sunos4.1.1
+ 		;;
+ 	pru-*)
+-		os=elf
++		os=
++		obj=elf
+ 		;;
+ 	*-be)
+ 		os=beos
+@@ -1688,10 +1696,12 @@ case $cpu-$vendor in
+ 		os=uxpv
+ 		;;
+ 	*-rom68k)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	*-*bug)
+-		os=coff
++		os=
++		obj=coff
+ 		;;
+ 	*-apple)
+ 		os=macos
+@@ -1709,10 +1719,11 @@ esac
+ 
+ fi
+ 
+-# Now, validate our (potentially fixed-up) OS.
++# Now, validate our (potentially fixed-up) individual pieces (OS, OBJ).
++
+ case $os in
+ 	# Sometimes we do "kernel-libc", so those need to count as OSes.
+-	musl* | newlib* | relibc* | uclibc*)
++	llvm* | musl* | newlib* | relibc* | uclibc*)
+ 		;;
+ 	# Likewise for "kernel-abi"
+ 	eabi* | gnueabi*)
+@@ -1720,6 +1731,9 @@ case $os in
+ 	# VxWorks passes extra cpu info in the 4th filed.
+ 	simlinux | simwindows | spe)
+ 		;;
++	# See `case $cpu-$os` validation below
++	ghcjs)
++		;;
+ 	# Now accept the basic system types.
+ 	# The portable systems comes first.
+ 	# Each alternative MUST end in a * to match a version number.
+@@ -1728,7 +1742,7 @@ case $os in
+ 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
+ 	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
+ 	     | hiux* | abug | nacl* | netware* | windows* \
+-	     | os9* | macos* | osx* | ios* | watchos* | tvos* \
++	     | os9* | macos* | osx* | ios* | tvos* | watchos* \
+ 	     | mpw* | magic* | mmixware* | mon960* | lnews* \
+ 	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
+ 	     | aos* | aros* | cloudabi* | sortix* | twizzler* \
+@@ -1737,11 +1751,11 @@ case $os in
+ 	     | mirbsd* | netbsd* | dicos* | openedition* | ose* \
+ 	     | bitrig* | openbsd* | secbsd* | solidbsd* | libertybsd* | os108* \
+ 	     | ekkobsd* | freebsd* | riscix* | lynxos* | os400* \
+-	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
+-	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
++	     | bosx* | nextstep* | cxux* | oabi* \
++	     | ptx* | ecoff* | winnt* | domain* | vsta* \
+ 	     | udi* | lites* | ieee* | go32* | aux* | hcos* \
+ 	     | chorusrdb* | cegcc* | glidix* | serenity* \
+-	     | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
++	     | cygwin* | msys* | moss* | proelf* | rtems* \
+ 	     | midipix* | mingw32* | mingw64* | mint* \
+ 	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
+ 	     | interix* | uwin* | mks* | rhapsody* | darwin* \
+@@ -1754,51 +1768,116 @@ case $os in
+ 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
+ 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
+ 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+-	     | fiwix* )
++	     | fiwix* | mlibc* | cos* | mbr* | ironclad* )
+ 		;;
+ 	# This one is extra strict with allowed versions
+ 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
+ 		# Don't forget version if it is 3.2v4 or newer.
+ 		;;
++	# This refers to builds using the UEFI calling convention
++	# (which depends on the architecture) and PE file format.
++	# Note that this is both a different calling convention and
++	# different file format than that of GNU-EFI
++	# (x86_64-w64-mingw32).
++	uefi)
++		;;
+ 	none)
+ 		;;
++	kernel* | msvc* )
++		# Restricted further below
++		;;
++	'')
++		if test x"$obj" = x
++		then
++			echo "Invalid configuration '$1': Blank OS only allowed with explicit machine code file format" 1>&2
++		fi
++		;;
++	*)
++		echo "Invalid configuration '$1': OS '$os' not recognized" 1>&2
++		exit 1
++		;;
++esac
++
++case $obj in
++	aout* | coff* | elf* | pe*)
++		;;
++	'')
++		# empty is fine
++		;;
+ 	*)
+-		echo Invalid configuration \`"$1"\': OS \`"$os"\' not recognized 1>&2
++		echo "Invalid configuration '$1': Machine code format '$obj' not recognized" 1>&2
++		exit 1
++		;;
++esac
++
++# Here we handle the constraint that a (synthetic) cpu and os are
++# valid only in combination with each other and nowhere else.
++case $cpu-$os in
++	# The "javascript-unknown-ghcjs" triple is used by GHC; we
++	# accept it here in order to tolerate that, but reject any
++	# variations.
++	javascript-ghcjs)
++		;;
++	javascript-* | *-ghcjs)
++		echo "Invalid configuration '$1': cpu '$cpu' is not valid with os '$os$obj'" 1>&2
+ 		exit 1
+ 		;;
+ esac
+ 
+ # As a final step for OS-related things, validate the OS-kernel combination
+ # (given a valid OS), if there is a kernel.
+-case $kernel-$os in
+-	linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
+-		   | linux-musl* | linux-relibc* | linux-uclibc* )
++case $kernel-$os-$obj in
++	linux-gnu*- | linux-android*- | linux-dietlibc*- | linux-llvm*- \
++		    | linux-mlibc*- | linux-musl*- | linux-newlib*- \
++		    | linux-relibc*- | linux-uclibc*- )
++		;;
++	uclinux-uclibc*- )
++		;;
++	managarm-mlibc*- | managarm-kernel*- )
+ 		;;
+-	uclinux-uclibc* )
++	windows*-msvc*-)
+ 		;;
+-	-dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* )
++	-dietlibc*- | -llvm*- | -mlibc*- | -musl*- | -newlib*- | -relibc*- \
++		    | -uclibc*- )
+ 		# These are just libc implementations, not actual OSes, and thus
+ 		# require a kernel.
+-		echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
++		echo "Invalid configuration '$1': libc '$os' needs explicit kernel." 1>&2
+ 		exit 1
+ 		;;
+-	kfreebsd*-gnu* | kopensolaris*-gnu*)
++	-kernel*- )
++		echo "Invalid configuration '$1': '$os' needs explicit kernel." 1>&2
++		exit 1
+ 		;;
+-	vxworks-simlinux | vxworks-simwindows | vxworks-spe)
++	*-kernel*- )
++		echo "Invalid configuration '$1': '$kernel' does not support '$os'." 1>&2
++		exit 1
+ 		;;
+-	nto-qnx*)
++	*-msvc*- )
++		echo "Invalid configuration '$1': '$os' needs 'windows'." 1>&2
++		exit 1
+ 		;;
+-	os2-emx)
++	kfreebsd*-gnu*- | kopensolaris*-gnu*-)
++		;;
++	vxworks-simlinux- | vxworks-simwindows- | vxworks-spe-)
++		;;
++	nto-qnx*-)
++		;;
++	os2-emx-)
+ 		;;
+-	ios*-simulator | tvos*-simulator | watchos*-simulator)
++	*-eabi*- | *-gnueabi*-)
+ 		;;
+-	*-eabi* | *-gnueabi*)
++	none--*)
++		# None (no kernel, i.e. freestanding / bare metal),
++		# can be paired with an machine code file format
+ 		;;
+-	-*)
++	-*-)
+ 		# Blank kernel with real OS is always fine.
+ 		;;
+-	*-*)
+-		echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
++	--*)
++		# Blank kernel and OS with real machine code file format is always fine.
++		;;
++	*-*-*)
++		echo "Invalid configuration '$1': Kernel '$kernel' not known to work with OS '$os'." 1>&2
+ 		exit 1
+ 		;;
+ esac
+@@ -1881,7 +1960,7 @@ case $vendor in
+ 		;;
+ esac
+ 
+-echo "$cpu-$vendor-${kernel:+$kernel-}$os"
++echo "$cpu-$vendor${kernel:+-$kernel}${os:+-$os}${obj:+-$obj}"
+ exit
+ 
+ # Local variables:
+-- 
+2.46.0
+
diff --git a/0006-aarch64-Add-a-missing-no-op-define-of-SIGN_LR_LINUX_.patch b/0006-aarch64-Add-a-missing-no-op-define-of-SIGN_LR_LINUX_.patch
new file mode 100644
index 0000000..bcf6f0f
--- /dev/null
+++ b/0006-aarch64-Add-a-missing-no-op-define-of-SIGN_LR_LINUX_.patch
@@ -0,0 +1,37 @@
+From 9c9e8368e49804c4f7c35ac9f0d7c1d0d533308b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
+Date: Tue, 4 Jun 2024 14:13:08 +0300
+Subject: [PATCH 6/7] aarch64: Add a missing no-op define of SIGN_LR_LINUX_ONLY
+ (#838)
+Content-type: text/plain; charset=UTF-8
+
+This is needed at least if building for Linux, with a toolchain
+that doesn't default to having PAC enabled, fixing build errors
+since 45d284f2d066cc3a080c5be88e51b4d934349797.
+---
+ src/aarch64/internal.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/aarch64/internal.h b/src/aarch64/internal.h
+index c39f9cb..50fa5c1 100644
+--- a/src/aarch64/internal.h
++++ b/src/aarch64/internal.h
+@@ -88,6 +88,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+   #define AUTH_LR_AND_RET retab
+   #define AUTH_LR_WITH_REG(x) autib lr, x
+   #define BRANCH_AND_LINK_TO_REG blraaz
++  #define SIGN_LR_LINUX_ONLY
+   #define BRANCH_TO_REG braaz
+   #define PAC_CFI_WINDOW_SAVE
+   /* Linux PAC Support */
+@@ -136,6 +137,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+     #define AUTH_LR_AND_RET ret
+     #define AUTH_LR_WITH_REG(x)
+     #define BRANCH_AND_LINK_TO_REG blr
++    #define SIGN_LR_LINUX_ONLY
+     #define BRANCH_TO_REG br
+     #define PAC_CFI_WINDOW_SAVE
+   #endif /* HAVE_ARM64E_PTRAUTH */
+-- 
+2.46.0
+
diff --git a/0007-Fix-struct-args-Rainer-Orth.patch b/0007-Fix-struct-args-Rainer-Orth.patch
new file mode 100644
index 0000000..cf2ec18
--- /dev/null
+++ b/0007-Fix-struct-args-Rainer-Orth.patch
@@ -0,0 +1,47 @@
+From 8e3ef965c2d0015ed129a06d0f11f30c2120a413 Mon Sep 17 00:00:00 2001
+From: Anthony Green <green@moxielogic.com>
+Date: Fri, 28 Jun 2024 04:07:09 -0400
+Subject: [PATCH 7/7] Fix struct args (Rainer Orth)
+Content-type: text/plain; charset=UTF-8
+
+---
+ src/sparc/ffi.c | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
+
+diff --git a/src/sparc/ffi.c b/src/sparc/ffi.c
+index 9e406d0..cf819ee 100644
+--- a/src/sparc/ffi.c
++++ b/src/sparc/ffi.c
+@@ -286,6 +286,8 @@ ffi_call_int (ffi_cif *cif, void (*fn)(void), void *rvalue,
+ 	      void **avalue, void *closure)
+ {
+   size_t bytes = cif->bytes;
++  size_t i, nargs = cif->nargs;
++  ffi_type **arg_types = cif->arg_types;
+ 
+   FFI_ASSERT (cif->abi == FFI_V8);
+ 
+@@ -295,6 +297,20 @@ ffi_call_int (ffi_cif *cif, void (*fn)(void), void *rvalue,
+       && (cif->flags & SPARC_FLAG_RET_MASK) == SPARC_RET_STRUCT)
+     bytes += FFI_ALIGN (cif->rtype->size, 8);
+ 
++  /* If we have any structure arguments, make a copy so we are passing
++     by value.  */
++  for (i = 0; i < nargs; i++)
++    {
++      ffi_type *at = arg_types[i];
++      int size = at->size;
++      if (at->type == FFI_TYPE_STRUCT)
++        {
++          char *argcopy = alloca (size);
++          memcpy (argcopy, avalue[i], size);
++          avalue[i] = argcopy;
++        }
++    }
++
+   ffi_call_v8(cif, fn, rvalue, avalue, -bytes, closure);
+ }
+ 
+-- 
+2.46.0
+
diff --git a/libffi-3.4.6-C23.patch b/libffi-3.4.6-C23.patch
new file mode 100644
index 0000000..2dc538a
--- /dev/null
+++ b/libffi-3.4.6-C23.patch
@@ -0,0 +1,40 @@
+From 0859f8431242d5adff21420b9cab538d2af527b5 Mon Sep 17 00:00:00 2001
+From: Joseph Myers <jsm@polyomino.org.uk>
+Date: Thu, 24 Oct 2024 18:26:58 +0000
+Subject: Fix testsuite for C23 `va_start` (#861)
+
+In the C23 revision of the C standard, `va_start` ignores its second
+argument, which is no longer required (previously the last named
+function parameter - which the compiler knows anyway, so it's
+redundant information).
+
+This has the consequence for the libffi testsuite, when making GCC
+default to `-std=gnu23`, of making two tests fail with warnings about
+an unused function argument (only passed to `va_start` and not
+otherwise used).  Fix those test failures by explicitly casting the
+argument to `void`.
+
+diff --git a/testsuite/libffi.call/va_struct2.c b/testsuite/libffi.call/va_struct2.c
+index a8daff3..a034087 100644
+--- a/testsuite/libffi.call/va_struct2.c
++++ b/testsuite/libffi.call/va_struct2.c
+@@ -33,6 +33,7 @@ test_fn (int n, ...)
+   struct small_tag s2;
+   struct large_tag l;
+ 
++  (void) n;
+   va_start (ap, n);
+   s1 = va_arg (ap, struct small_tag);
+   l = va_arg (ap, struct large_tag);
+diff --git a/testsuite/libffi.call/va_struct3.c b/testsuite/libffi.call/va_struct3.c
+index d3bd280..5a52c9f 100644
+--- a/testsuite/libffi.call/va_struct3.c
++++ b/testsuite/libffi.call/va_struct3.c
+@@ -33,6 +33,7 @@ test_fn (int n, ...)
+   struct small_tag s2;
+   struct large_tag l;
+ 
++  (void) n;
+   va_start (ap, n);
+   s1 = va_arg (ap, struct small_tag);
+   l = va_arg (ap, struct large_tag);
diff --git a/libffi.spec b/libffi.spec
index a056262..eab0d0f 100644
--- a/libffi.spec
+++ b/libffi.spec
@@ -3,13 +3,9 @@
 %global multilib_arches %{ix86} x86_64
 
 Name:		libffi
-Version:	3.5.2
-Release:	1%{?dist}
+Version:	3.4.6
+Release:	5%{?dist}
 Summary:	A portable foreign function interface library
-# No license change for 3.5.2
-# No license change for 3.5.1
-# No license change for 3.4.8
-# No license change for 3.4.7
 # No license change for 3.4.6
 # The following SPDX licenses are extracted from the sources using
 # ScanCode 32.0.8 on build libffi-3.4.4-7.fc40:
@@ -45,6 +41,22 @@ Source0:	https://github.com/libffi/libffi/releases/download/v%{version}/libffi-%
 Source1:	ffi-multilib.h
 Source2:	ffitarget-multilib.h
 
+# Fix AArch64 BTI issues by pulling in upstream commits after 3.4.6.
+# "Install ISO's die when run on an arm64 machine with BTI"
+# https://bugzilla.redhat.com/show_bug.cgi?id=2305877
+# 
+# Patch numbers relative to v3.4.6 tag:
+Patch0: 0001-Fix-bti-support-830.patch
+Patch1: 0002-ffi-fix-spelling-mistake-833.patch
+Patch2: 0003-aarch64-support-pointer-authentication-834.patch
+# Skip manual fix to avoid needing makeinfo to build libffi.
+# Patch3: 0004-A-fix-to-the-struct-type-example-837.patch
+Patch4: 0005-Import-from-upstream.patch
+Patch5: 0006-aarch64-Add-a-missing-no-op-define-of-SIGN_LR_LINUX_.patch
+Patch6: 0007-Fix-struct-args-Rainer-Orth.patch
+
+Patch7: libffi-3.4.6-C23.patch
+
 BuildRequires: make
 BuildRequires: gcc
 %if %{without bootstrap}
@@ -92,10 +104,12 @@ developing applications that use %{name}.
 %autosetup -p1
 
 %build
-# --disable-multi-os-directory is used because otherwise, on riscv64, the
-# library is installed under ${_libdir}/lp64d, which we don't want. Other
-# architectures don't have the same problem so they're unaffected.
-%configure --disable-static --disable-multi-os-directory
+# For now we disable the static templates to avoid ghc and
+# gobject-introspection failures:
+# https://gitlab.haskell.org/ghc/ghc/-/issues/20051
+# https://gitlab.gnome.org/GNOME/gobject-introspection/-/merge_requests/283
+# We need to get these fixes into Fedora before we can reeanble them.
+%configure --disable-static
 %make_build
 
 %check
@@ -133,7 +147,7 @@ install -m644 %{SOURCE2} $RPM_BUILD_ROOT%{_includedir}/ffitarget.h
 %license LICENSE
 %doc README.md
 %{_libdir}/libffi.so.8
-%{_libdir}/libffi.so.8.2.0
+%{_libdir}/libffi.so.8.1.4
 
 %files devel
 %{_libdir}/pkgconfig/*.pc
@@ -143,30 +157,6 @@ install -m644 %{SOURCE2} $RPM_BUILD_ROOT%{_includedir}/ffitarget.h
 %{_infodir}/libffi.info.*
 
 %changelog
-* Fri Sep  5 2025 DJ Delorie <dj@redhat.com> - 3.5.2-1
-- Rebase to libffi 3.5.1.
-
-* Thu Jul 24 2025 Fedora Release Engineering <releng@fedoraproject.org> - 3.5.1-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Fri Jun 13 2025 DJ Delorie <dj@redhat.com> - 3.5.1-1
-- Rebase to libffi 3.5.1.
-
-* Wed May 07 2025 DJ Delorie <dj@redhat.com> - 3.4.8-1
-- Rebase to libffi 3.4.8.
-
-* Fri Apr 04 2025 Andrea Bolognani <abologna@redhat.com> - 3.4.7-4
-- Fix riscv64 build (thanks David Abdurachmanov and Rich Jones)
-
-* Thu Mar 27 2025 DJ Delorie <dj@redhat.com> - 3.4.7-3
-- Regenerate configure for previous patch(#2313598)
-
-* Thu Mar 06 2025 DJ Delorie <dj@redhat.com> - 3.4.7-2
-- Add PPC64 static trampoline support (#2313598)
-
-* Tue Feb 18 2025 DJ Delorie <dj@redhat.com> - 3.4.7-1
-- Rebase to libffi 3.4.7.
-
 * Wed Jan 22 2025 DJ Delorie <dj@redhat.com> - 3.4.6-5
 - Fix FTBFS due to C23 compiler (#2340729)
 
diff --git a/plans/gating.fmf b/plans/gating.fmf
deleted file mode 100644
index 1ff37e7..0000000
--- a/plans/gating.fmf
+++ /dev/null
@@ -1,6 +0,0 @@
-summary: Gating testplan for libffi
-discover:
-    how: fmf
-execute:
-    how: tmt
-
diff --git a/sources b/sources
index 5cd2132..2d2b5ff 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libffi-3.5.2.tar.gz) = 76974a84e3aee6bbd646a6da2e641825ae0b791ca6efdc479b2d4cbcd3ad607df59cffcf5031ad5bd30822961a8c6de164ac8ae379d1804acd388b1975cdbf4d
+SHA512 (libffi-3.4.6.tar.gz) = 033d2600e879b83c6bce0eb80f69c5f32aa775bf2e962c9d39fbd21226fa19d1e79173d8eaa0d0157014d54509ea73315ad86842356fc3a303c0831c94c6ab39
diff --git a/tests/tests.yml b/tests/tests.yml
new file mode 100644
index 0000000..4ca04f0
--- /dev/null
+++ b/tests/tests.yml
@@ -0,0 +1,17 @@
+---
+# This first play always runs on the local staging system
+- hosts: localhost
+  roles:
+  - role: standard-test-beakerlib
+    tags:
+    - classic
+    tests:
+    - testsuite
+    required_packages:
+    - libffi
+    - libffi-devel
+    - gcc
+    - dejagnu
+    - rpm-build
+    - gcc-c++
+    - strace
diff --git a/tests/testsuite/runtest.sh b/tests/testsuite/runtest.sh
index df1b20b..19a7f8c 100755
--- a/tests/testsuite/runtest.sh
+++ b/tests/testsuite/runtest.sh
@@ -39,7 +39,7 @@ rlJournalStart
             fi
         done;
 
-        rlRun "TmpDir=$(mktemp -d)" 0 "Creating tmp directory"
+        rlRun "TmpDir=`mktemp -d`" 0 "Creating tmp directory"
         rlRun "pushd $TmpDir"
         rlFetchSrcForInstalled libffi
         rlRun "rpm -ivh libffi*.src.rpm"
@@ -47,7 +47,7 @@ rlJournalStart
         rlRun "specfile=$(rpm --eval='%_specdir')/libffi.spec"
         rlRun "rpmbuild -bp --undefine specpartsdir $specfile"
         rlRun "builddir=$(rpm --eval='%_builddir')"
-        rlRun "pushd $(dirname "$(find $builddir -name configure)")"
+        rlRun "pushd $(dirname `find $builddir -name configure`)"
         rlRun "./configure"
         rlRun "make"
     rlPhaseEnd
@@ -60,20 +60,15 @@ rlJournalStart
         sed -i 's/set ld_library_path "."/set ld_library_path ""/' testsuite/lib/libffi*.exp
         sed -i '/append ld_library_path.*blddirffi/d' testsuite/lib/libffi*.exp
         # Set ld_library_path to the system libdir (typically /usr/lib or /usr/lib64)
-        MYLIBDIR=$(rpm --eval '%{_libdir}')
+        export MYLIBDIR=$(rpm --eval '%{_libdir}')
         sed -i 's;set libffi_dir.*"[^"]*";set libffi_dir "'"${MYLIBDIR}"'";' testsuite/lib/libffi*.exp
-        grep -F -e 'set ld_library_path' -e 'set libffi_dir' testsuite/lib/libffi.exp
-        # As of upstream commit 40a7682 the link flags hardcode the library dir so we need to edit that too
-        # by removing the explicit library seach path to the built libraries.
-        # https://github.com/libffi/libffi/commit/40a7682#diff-b4e449eb85934de2bdcf9ee0ac320872a7d09d60df6a24e3f066d7d74f6ddfd0R345
-        sed -i 's;set libffi_link_flags "-L[^"]*";set libffi_link_flags "";' testsuite/lib/libffi*.exp
+        fgrep -e 'set ld_library_path' -e 'set libffi_dir' testsuite/lib/libffi.exp
         set +xe
         rlLog "Checking whether we test really the installed libraries."
         strace -F -e open,openat,stat -o strace.log -- make check
-        # Count library calls from places different than the libdir we want (MYLIBDIR)
-        LIBFFI_SO_CALLS=$(cat strace.log | grep libffi.so | grep -v ENOENT | grep -v "/usr" | grep -v '"/lib' | grep -c -v 'unfinished')
-        rlAssertGreater "The just built libraries should not be used, everything should be taken from /usr" 5 "$LIBFFI_SO_CALLS"
-        rlRun "cat strace.log | grep libffi.so | grep /usr"
+        LIBFFI_SO_CALLS=`cat strace.log | grep libffi.so | grep -v ENOENT | grep -v 'usr/lib' | grep -v '\"\/lib' | grep -v 'unfinished' | wc -l`
+        rlAssertGreater "The just built libraries should not be used, everything should be taken from /usr" 5 $LIBFFI_SO_CALLS
+        rlRun "cat strace.log | grep libffi.so | grep usr"
         rlRun "cat strace.log | grep libffi.so | grep rpmbuild" 1
         rlRun "make check" 0 "RUNNING THE TESTSUITE"
         rlRun "popd"
@@ -81,7 +76,7 @@ rlJournalStart
 
     rlPhaseStartCleanup
         rlRun "ls -al $TmpDir"
-        rlBundleLogs logs "$(find . -name 'libffi.sum')" "$(find . -name 'libffi.log')"
+        rlBundleLogs logs $(find . -name 'libffi.sum') $(find . -name 'libffi.log')
         rlRun "rm -r $TmpDir" 0 "Removing tmp directory"
     rlPhaseEnd
 rlJournalPrintText