Try using -Oz on 32-bit arm as well after ndk r18

build-package.sh

@@ -613,14 +613,7 @@ termux_step_setup_toolchain() {
 	if [ -n "$TERMUX_DEBUG" ]; then
 		CFLAGS+=" -g3 -O1 -fstack-protector --param ssp-buffer-size=4 -D_FORTIFY_SOURCE=2"
 	else
-		# -Oz seems good for clang, see https://github.com/android-ndk/ndk/issues/133.
-		# However, on arm it has a lot of issues such as #1520, #1680, #1765 and
-		# https://bugs.llvm.org/show_bug.cgi?id=35379, so use so use -Os there for now:
-		if [ $TERMUX_ARCH = arm ]; then
-			CFLAGS+=" -Os"
-		else
-			CFLAGS+=" -Oz"
-		fi
+		CFLAGS+=" -Oz"
 	fi
 
 	export CXXFLAGS="$CFLAGS"