diff -up texlive-base-20190410/source/texk/ttf2pk2/ftlib.c.externfix texlive-base-20190410/source/texk/ttf2pk2/ftlib.c
diff -up texlive-base-20190410/source/texk/ttf2pk2/pklib.c.externfix texlive-base-20190410/source/texk/ttf2pk2/pklib.c
--- texlive-base-20190410/source/texk/ttf2pk2/pklib.c.externfix	2020-01-23 15:56:27.041072021 -0500
+++ texlive-base-20190410/source/texk/ttf2pk2/pklib.c	2020-01-23 16:02:05.585252609 -0500
@@ -64,7 +64,7 @@
 #define PK_POST (char)245
 #define PK_NOP  (char)246
 
-int dpi;
+extern int dpi;
 
 FILE *pk_file;
 
