Remove overflow2, getmbi and skipheader, since they are not needed anymore.

diff --git a/ext/gd/libgd/gd_compat.c b/ext/gd/libgd/gd_compat.c
index f3627a1404f2f14be1b3dd2e8bdc3255a9e3747d..875fbd6f797d88200f659a387a63eeef7adc9aa5 100644 (file)
--- a/ext/gd/libgd/gd_compat.c
+++ b/ext/gd/libgd/gd_compat.c
@@ -32,51 +32,3 @@ const char * gdPngGetVersionString()
        return PNG_LIBPNG_VER_STRING;
 }
 #endif
-
-/* Not exported by libgd, copied from gdhelpers.h */
-int overflow2(int a, int b)
-{
-       if(a <= 0 || b <= 0) {
-               return 1;
-       }
-       if(a > INT_MAX / b) {
-               return 1;
-       }
-       return 0;
-}
-
-/* Not exported by libgd, copied from wbmp.c */
-int
-getmbi (int (*getin) (void *in), void *in)
-{
-  int i, mbi = 0;
-
-  do
-    {
-      i = getin (in);
-      if (i < 0)
-       return (-1);
-      mbi = (mbi << 7) | (i & 0x7f);
-    }
-  while (i & 0x80);
-
-  return (mbi);
-}
-
-/* Not exported by libgd, copied from wbmp.c */
-int
-skipheader (int (*getin) (void *in), void *in)
-{
-  int i;
-
-  do
-    {
-      i = getin (in);
-      if (i < 0)
-       return (-1);
-    }
-  while (i & 0x80);
-
-  return (0);
-}
-