gthumb-2.10.11-thumb-cache-libpng15.patch

--- libgthumb/thumb-cache.c.orig    2009-02-24 07:18:16.000000000 -0300
+++ libgthumb/thumb-cache.c 2011-10-16 23:30:58.001840332 -0300
@@ -245,8 +245,12 @@
                 "Fatal error in PNG image file: %s",
                 error_msg);
    }
-
-   longjmp (png_save_ptr->jmpbuf, 1);
+        // if for libpng15
+        #if (PNG_LIBPNG_VER < 10500)
+         longjmp (png_save_ptr->jmpbuf, 1);
+        #else
+         png_longjmp (png_save_ptr, 1);
+        #endif
 }


@@ -294,13 +298,23 @@

    info_ptr = png_create_info_struct (png_ptr);
    if (info_ptr == NULL) {
-       png_destroy_read_struct (&png_ptr, NULL, NULL);
+        // if for libpng15
+        #if (PNG_LIBPNG_VER < 10500)
+          png_destroy_read_struct (&png_ptr, NULL, NULL);
+        #else
+          png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
+        #endif
        fclose (f);
        return NULL;
    }

-   if (setjmp (png_ptr->jmpbuf)) {
-       png_destroy_read_struct (&png_ptr, NULL, NULL);
+   if (setjmp(png_jmpbuf(png_ptr))) {
+        // if for libpng15
+        #if (PNG_LIBPNG_VER < 10500)
+          png_destroy_read_struct (&png_ptr, NULL, NULL);
+        #else
+          png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
+        #endif
        fclose (f);
        return NULL;
    }