diff -u lightspeed-1.2a/src/snapshot.c lightspeed-1.2a/src/snapshot.c
--- lightspeed-1.2a/src/snapshot.c
+++ lightspeed-1.2a/src/snapshot.c
@@ -28,6 +28,7 @@
 #ifdef HAVE_LIBPNG
 #include <png.h>
 static int write_png( int message, const void *data );
+#include <zlib.h>
 #endif
 
 #ifdef HAVE_LIBTIFF
@@ -305,7 +306,11 @@
 			return -1;
 		png_write_s = png_create_write_struct( PNG_LIBPNG_VER_STRING, NULL, NULL, NULL );
 		png_info_s = png_create_info_struct( png_write_s );
+#if PNG_LIBPNG_VER_MAJOR >= 1 && PNG_LIBPNG_VER_MINOR >= 4
+		if (setjmp(png_jmpbuf(png_write_s))) {
+#else
 		if (setjmp( png_write_s->jmpbuf )) {
+#endif
 			/* Error writing file */
 			png_destroy_write_struct( &png_write_s, &png_info_s );
 			fclose( png_fp );
diff -u lightspeed-1.2a/debian/changelog lightspeed-1.2a/debian/changelog
--- lightspeed-1.2a/debian/changelog
+++ lightspeed-1.2a/debian/changelog
@@ -1,3 +1,10 @@
+lightspeed (1.2a-8.1) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * Fix FTBFS with libpng 1.5
+
+ -- Nobuhiro Iwamatsu <iwamatsu@nigauri.org>  Thu, 24 Nov 2011 06:43:45 +0900
+
 lightspeed (1.2a-8) unstable; urgency=low
 
   * Package maintainer set to Debian QA Group <packages@qa.debian.org>.
diff -u lightspeed-1.2a/debian/control lightspeed-1.2a/debian/control
--- lightspeed-1.2a/debian/control
+++ lightspeed-1.2a/debian/control
@@ -3,7 +3,7 @@
 Priority: optional
 Maintainer: Debian QA Group <packages@qa.debian.org>
 Standards-Version: 3.7.2.0
-Build-Depends: debhelper (>> 4.0.0), libgtkglext1-dev, libgtk2.0-dev, libpng12-dev, libtiff4-dev, libxi-dev, zlib1g-dev, libgl1-mesa-dev | libgl-dev, ftgl-dev, libfontconfig1-dev
+Build-Depends: debhelper (>> 4.0.0), libgtkglext1-dev, libgtk2.0-dev, libpng-dev (>= 1.5), libtiff4-dev, libxi-dev, zlib1g-dev, libgl1-mesa-dev | libgl-dev, ftgl-dev, libfontconfig1-dev
 
 Package: lightspeed
 Architecture: any