Add a const to the static structure
diff --git a/poppler/GlobalParamsWin.cc b/poppler/GlobalParamsWin.cc
index 1dc3d4a..eba72fa 100644
--- a/poppler/GlobalParamsWin.cc
+++ b/poppler/GlobalParamsWin.cc
@@ -78,7 +78,7 @@
 #define DEFAULT_CID_FONT_AK1_MSWIN "Batang"    /* Adobe-Korea1 */
 #define DEFAULT_CID_FONT_MSWIN "ArialUnicode"  /* Unknown */
 
-static struct {
+static const struct {
     const char *name;
     const char *t1FileName;
     const char *ttFileName;