From 0e239f51821964d63e48383ada377ada8c95d14c Mon Sep 17 00:00:00 2001
From: Anthony North <anthony.jl.north@gmail.com>
Date: Mon, 18 Dec 2023 06:19:01 +0000
Subject: [PATCH] patch projjson for crs objects created with legacy gdal

---
 R/pkg-sf.R | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/R/pkg-sf.R b/R/pkg-sf.R
index 5c3bb3a6..3a7c04b0 100644
--- a/R/pkg-sf.R
+++ b/R/pkg-sf.R
@@ -138,7 +138,7 @@ wk_crs_proj_definition.crs <- function(crs, proj_version = NULL, verbose = FALSE
 #' @export
 wk_crs_projjson.crs <- function(crs) {
   json <- crs$ProjJson
-  if (is.null(json)) {
+  if (is.null(json) || is.na(json[1])) {
     # i.e., GDAL is not >= 3.1.0
     NextMethod()
   } else {