Version 10.35.67

git-svn-id: http://svn.code.sf.net/p/netpbm/code/stable@977 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 7 insertions, 0 deletions

diff --git a/converter/other/pnmtopng.c b/converter/other/pnmtopng.c
index 5fc0326b..ed074777 100644
--- a/converter/other/pnmtopng.c
+++ b/converter/other/pnmtopng.c
@@ -69,6 +69,13 @@
 #include "nstring.h"
 #include "version.h"
 
+#if PNG_LIBPNG_VER >= 10400
+#error Your PNG library (<png.h>) is incompatible with this Netpbm source code.
+#error You need either an older PNG library (older than 1.4)
+#error newer Netpbm source code (at least 10.48)
+#endif
+
+
 struct zlibCompression {
     /* These are parameters that describe a form of zlib compression.
        Values have the same meaning as the similarly named arguments to