Avoid garbage return value when (s == 0 || n == 0)
Removed unused field from Gif_Colormap
Merge pull request #20 from pornel/unusedfield

Removed unused Gif_Color.a
Fix typo -- though I doubt the typo mattered.
Fixed custom gamma
Merge pull request #21 from pornel/customgamma

Fixed custom gamma
Update win32cfg.h.

Problem reported by Adeel Mujahid.
Clean up and initially document Gif_Color.
MSDevDir might be the right name for this
MSDevDir might be the right name for this
Include tests in distribution.
To 1.83.
Allow compiling with a C++ compiler.
Windows apparently has _snprintf.
Create separate types in optimizer for palette index, penalty.
Optimize: Support images with >=2^16-1 distinct colors.

This requires that the optimizer use image buffers that aren't
16-bit pixels. But switching overall to 32-bit pixels is expensive
by about 33%-50% more for large images, so compile the optimizer
twice, once for 16-bit pixels and once for 32-bit pixels.
To 1.84.
The --no-conserve-memory option means definitely don't conserve memory

no matter how large the input GIF. Jernej again.
Cut time to optimize an image with many colors in half.

O(n^2) -> O(n).
Define HAVE_CONFIG_H to 1 on borland cc