diff --git a/Misc/NEWS.d/next/Build/2026-10-21-14-52-56.gh-issue-128884.Xs5jK-.rst b/Misc/NEWS.d/next/Build/2026-10-21-14-52-56.gh-issue-128884.Xs5jK-.rst
new file mode 100644
index 00000000000000..53233d06c5053a
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2026-10-21-14-52-56.gh-issue-128884.Xs5jK-.rst
@@ -0,0 +1,2 @@
+Fix ``--enable-bolt`` build failures on AArch64 with recent LLVM: pass
+``-frame-opt=hot`` only on x86. Patch by Donghee Na.
diff --git a/configure b/configure
index 38fd8575530e8a..a0682ff03422e1 100755
--- a/configure
+++ b/configure
@@ -9780,7 +9780,14 @@ printf "%s\n" "$BOLT_INSTRUMENT_FLAGS" >&6; }
 printf %s "checking BOLT_APPLY_FLAGS... " >&6; }
 if test -z "${BOLT_APPLY_FLAGS}"
 then
-  BOLT_APPLY_FLAGS=" ${BOLT_COMMON_FLAGS} -reorder-blocks=ext-tsp -reorder-functions=cdsort -split-functions -icf=0 -inline-all -split-eh -reorder-functions-use-hot-size -peepholes=none -jump-tables=aggressive -inline-ap -indirect-call-promotion=all -dyno-stats -use-gnu-stack -frame-opt=hot "
+      case $host_cpu in #(
+  x86_64) :
+    bolt_frame_opt_flags="-frame-opt=hot" ;; #(
+  *) :
+    bolt_frame_opt_flags=""
+   ;;
+esac
+  BOLT_APPLY_FLAGS=" ${BOLT_COMMON_FLAGS} -reorder-blocks=ext-tsp -reorder-functions=cdsort -split-functions -icf=0 -inline-all -split-eh -reorder-functions-use-hot-size -peepholes=none -jump-tables=aggressive -inline-ap -indirect-call-promotion=all -dyno-stats -use-gnu-stack ${bolt_frame_opt_flags} "
 
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BOLT_APPLY_FLAGS" >&5
diff --git a/configure.ac b/configure.ac
index 777ced94454594..90eae31482d2e7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2288,6 +2288,12 @@ AC_ARG_VAR(
 AC_MSG_CHECKING([BOLT_APPLY_FLAGS])
 if test -z "${BOLT_APPLY_FLAGS}"
 then
+  dnl The frame optimizer is only implemented for x86. BOLT 22 and newer
+  dnl refuse to run it on other architectures.
+  AS_CASE([$host_cpu],
+    [x86_64], [bolt_frame_opt_flags="-frame-opt=hot"],
+    [bolt_frame_opt_flags=""]
+  )
   AS_VAR_SET(
     [BOLT_APPLY_FLAGS],
     [m4_normalize("
@@ -2305,7 +2311,7 @@ then
      -indirect-call-promotion=all
      -dyno-stats
      -use-gnu-stack
-     -frame-opt=hot
+     ${bolt_frame_opt_flags}
    ")]
   )
 fi