libcue: Add SOVERSION guard

%ci:no-build

packages/libcue/build.sh

@@ -15,3 +15,15 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 -DFLEX_EXECUTABLE=$(command -v flex)
 -DBUILD_SHARED_LIBS=ON
 "
+
+termux_step_post_get_source() {
+	# Do not forget to bump revision of reverse dependencies and rebuild them
+	# after SOVERSION is changed.
+	local _SOVERSION=2
+
+	local v=$(sed -En 's/^SET\(PACKAGE_SOVERSION\s+([0-9]+).*/\1/p' \
+			CMakeLists.txt)
+	if [ "${v}" != "${_SOVERSION}" ]; then
+		termux_error_exit "SOVERSION guard check failed."
+	fi
+}