--- Makefile.am.orig	2026-03-04 13:56:50 UTC
+++ Makefile.am
@@ -62,12 +62,6 @@ endif
 other_tests += ${other_tests_x86_64}
 endif
 
-if CPU_AARCH64
-ARCH=-Daarch64
-libisal_la_SOURCES += ${lsrc_aarch64}
-other_tests += ${other_tests_aarch64}
-endif
-
 if CPU_PPC64LE
 ARCH=-Dppc64le
 libisal_la_SOURCES += ${lsrc_ppc64le}
@@ -123,9 +117,6 @@ endif
 if USE_NASM
   as_filter = ${srcdir}/tools/nasm-filter.sh
 endif
-if CPU_AARCH64
-  as_filter = $(CC) -D__ASSEMBLY__
-endif
 if CPU_RISCV64
   as_filter = $(CC) -D__ASSEMBLY__
 endif
@@ -135,11 +126,7 @@ AM_CFLAGS = ${my_CFLAGS} ${INCLUDE} $(src_include) ${A
 EXTRA_DIST += tools/nasm-cet-filter.sh
 
 AM_CFLAGS = ${my_CFLAGS} ${INCLUDE} $(src_include) ${ARCH} ${D}
-if CPU_AARCH64
-AM_CCASFLAGS = ${AM_CFLAGS}
-else
 AM_CCASFLAGS = ${asm_args} ${INCLUDE} ${src_include} ${DEFS} ${D}
-endif
 if CPU_RISCV64
 AM_CCASFLAGS = ${AM_CFLAGS}
 endif
--- configure.ac.orig	2026-03-04 13:56:50 UTC
+++ configure.ac
@@ -26,14 +26,11 @@ AS_CASE([$host_cpu],
 AS_CASE([$host_cpu],
   [x86_64], [CPU="x86_64"],
   [amd64], [CPU="x86_64"],
-  [aarch64], [CPU="aarch64"],
-  [arm64], [CPU="aarch64"],
   [powerpc64le], [CPU="ppc64le"],
   [ppc64le], [CPU="ppc64le"],
   [riscv64], [CPU="riscv64"],
 )
 AM_CONDITIONAL([CPU_X86_64], [test "$CPU" = "x86_64"])
-AM_CONDITIONAL([CPU_AARCH64], [test "$CPU" = "aarch64"])
 AM_CONDITIONAL([CPU_PPC64LE], [test "$CPU" = "ppc64le"])
 AM_CONDITIONAL([CPU_RISCV64], [test "$CPU" = "riscv64"])
 AM_CONDITIONAL([CPU_UNDEFINED], [test "x$CPU" = "x"])