mbedtls: Add SOVERSION guard

%ci:no-build

packages/mbedtls/build.sh

@@ -15,3 +15,19 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 -DENABLE_TESTING=OFF
 -DENABLE_PROGRAMS=OFF
  "
+
+termux_step_post_get_source() {
+	# Do not forget to bump revision of reverse dependencies and rebuild them
+	# after SOVERSION is changed.
+	local _SOVER_crypto=12
+	local _SOVER_tls=18
+	local _SOVER_x509=4
+
+	local f
+	for f in crypto tls x509; do
+		local v="$(sed -n 's/^SOEXT_'${f^^}'=so\.//p' library/Makefile)"
+		if [ "$(eval echo \$_SOVER_${f})" != "${v}" ]; then
+			termux_error_exit "Error: SOVERSION guard check failed for libmbed${f}.so."
+		fi
+	done
+}