From 9c09870e374ca21d558101af3f4c09a6164fdfc3 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sun, 26 Sep 2021 22:49:52 +0200
Subject: [PATCH] Fix build against Poppler master

---
 frmts/pdf/pdfdataset.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/frmts/pdf/pdfdataset.cpp b/frmts/pdf/pdfdataset.cpp
index 9c4c28a6572..50a8154c756 100644
--- a/frmts/pdf/pdfdataset.cpp
+++ b/frmts/pdf/pdfdataset.cpp
@@ -5012,7 +5012,7 @@ PDFDataset *PDFDataset::Open( GDALOpenInfo * poOpenInfo )
 #ifdef HAVE_POPPLER
   if (bUseLib.test(PDFLIB_POPPLER))
   {
-    GooString* poMetadata = poCatalogPoppler->readMetadata();
+    auto poMetadata = poCatalogPoppler->readMetadata();
     if (poMetadata)
     {
 #if (POPPLER_MAJOR_VERSION >= 1 || POPPLER_MINOR_VERSION >= 72)
@@ -5026,7 +5026,9 @@ PDFDataset *PDFDataset::Open( GDALOpenInfo * poOpenInfo )
             const char * const apszMDList[2] = { pszContent, nullptr };
             poDS->SetMetadata(const_cast<char**>(apszMDList), "xml:XMP");
         }
+#if (POPPLER_MAJOR_VERSION < 21 || (POPPLER_MAJOR_VERSION == 21 && POPPLER_MINOR_VERSION <= 9))
         delete poMetadata;
+#endif
     }
 
     /* Read Info object */
