diff --git a/BUILD b/BUILD
index cba9ccb1d..7890c88e6 100644
--- a/BUILD
+++ b/BUILD
@@ -25,6 +25,8 @@ load(
     "crypto_sources",
     "crypto_sources_linux_x86_64",
     "crypto_sources_linux_ppc64le",
+    "crypto_sources_linux_aarch64",
+    "crypto_sources_linux_arm",
     "crypto_sources_mac_x86_64",
     "fips_fragments",
     "ssl_headers",
@@ -36,7 +38,17 @@ load(
 
 config_setting(
     name = "linux_x86_64",
-    values = {"cpu": "k8"},
+    constraint_values = ["@platforms//cpu:x86_64"],
+)
+
+config_setting(
+    name = "linux_aarch64",
+    constraint_values = ["@platforms//cpu:aarch64"],
+)
+
+config_setting(
+    name = "linux_arm",
+    constraint_values = ["@platforms//cpu:armv7"],
 )
 
 config_setting(
@@ -76,6 +88,9 @@ posix_copts = [
     "-Wwrite-strings",
     "-Wshadow",
     "-fno-common",
+    "-Wno-cast-qual",
+    "-Wno-cast-align",
+    "-Wno-unused-parameter",
 
     # Modern build environments should be able to set this to use atomic
     # operations for reference counting rather than locks. However, it's
@@ -86,6 +101,8 @@ posix_copts = [
 boringssl_copts = select({
     ":linux_x86_64": posix_copts,
     ":linux_ppc64le": posix_copts,
+    ":linux_arm": posix_copts,
+    ":linux_aarch64": posix_copts,
     ":mac_x86_64": posix_copts,
     ":windows_x86_64": [
         "-DWIN32_LEAN_AND_MEAN",
@@ -97,6 +114,8 @@ boringssl_copts = select({
 crypto_sources_asm = select({
     ":linux_x86_64": crypto_sources_linux_x86_64,
     ":linux_ppc64le": crypto_sources_linux_ppc64le,
+    ":linux_arm": crypto_sources_linux_arm,
+    ":linux_aarch64": crypto_sources_linux_aarch64,
     ":mac_x86_64": crypto_sources_mac_x86_64,
     "//conditions:default": [],
 })
@@ -112,6 +131,8 @@ posix_copts_c11 = [
 boringssl_copts_c11 = boringssl_copts + select({
     ":linux_x86_64": posix_copts_c11,
     ":linux_ppc64le": posix_copts_c11,
+    ":linux_arm": posix_copts_c11,
+    ":linux_aarch64": posix_copts_c11,
     ":mac_x86_64": posix_copts_c11,
     "//conditions:default": [],
 })
@@ -125,6 +146,8 @@ posix_copts_cxx = [
 boringssl_copts_cxx = boringssl_copts + select({
     ":linux_x86_64": posix_copts_cxx,
     ":linux_ppc64le": posix_copts_cxx,
+    ":linux_arm": posix_copts_cxx,
+    ":linux_aarch64": posix_copts_cxx,
     ":mac_x86_64": posix_copts_cxx,
     "//conditions:default": [],
 })