Bugfix: AM_PROG_AR is not recognized by older automake, so only use it when defined
Added few error messages in cjpeg
Fixed mozjpeg build with Visual C++ 2010

Moved several variable declarations out of inner scopes to the function scope to compile C code with Visual C++ 2010
Merge pull request #75 from pmed/master

Fixed mozjpeg build with Visual C++ 2010
Merge pull request #72 from jlongman/master

Bugfix: AM_PROG_AR is not recognized by older automake, so only use it w...
Merge pull request #73 from pornel/master

Added few error messages in cjpeg
Disable scan optimization if no scan given

Addresses segmentation fault issue in #69
Fix build for wrjpgcom

See r1325 in libjpeg-turbo
Update doc re: various DCT implementations

From libjpeg-turbo r1287
Improve floating point DCT

From libjpeg-turbo r1288
Port the more accurate (and slightly faster) floating point IDCT
implementation from jpeg-8a and later.  New research revealed that the
SSE/SSE2 floating point IDCT implementation was actually more accurate
than the jpeg-6b implementation, not less, which is why its
mathematical results have always differed from those of the jpeg-6b
implementation.  This patch brings the accuracy of the C code in line
with that of the SSE/SSE2 code.
Use precomputed table

From jpeglib-turbo r1221:
Integrate a slightly modified version of Mozilla's patch for
precomputing the bit-counting LUT.  This is useful if the table needs
to be shared among multiple processes, although the primary reason for
doing that is reduced footprint on mobile devices, which are probably
already covered by the clz intrinsic code.
Add option to disable progressive coding in cjpeg

Redefine baseline option in cjpeg to actually create a baseline JPEG
file by disabling progressive coding
Update README.md with link to 2.0 announcement and mailing list.
more logical flow of control if trellis_quant enabled

if trellis_quant is enabled, increment total number of
passes by optimization beginning pass number.

Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Merge pull request #79 from arjun024/devel

more logical flow of control if trellis_quant enabled
Bump version to 2.1.
Add trellis for DC

Add option to apply trellis quantization to the DC coefficients ( see
#57 ). May need further refinement to make sure block order during
trellis optimization matches order during coding.
Add option to split DC scans

Command line option -split-dc-scan is added to code DC scans
independently (instead of interleaved). It should be determined whether
this option introduces any decoder compatibility issues ( see #83 )
Option -multidcscan is renamed to -opt-dc-scan
Fix issue with DC trellis
PNG reading support