INT64_MIN was causing problems ('not declared'), because C99 requires some
C++-specific behavior, which C++11 prohibits...
Comments from clang's stdint implementation (http://clang.llvm.org/doxygen/stdint_8h_source.html):
// C99 7.18.3 Limits of other integer types
//
// Footnote 219, 220: C++ implementations should define these macros only when
// __STDC_LIMIT_MACROS is defined before <stdint.h> is included.
//
// Footnote 222: C++ implementations should define these macros only when
// __STDC_CONSTANT_MACROS is defined before <stdint.h> is included.
//
// C++11 [cstdint.syn]p2:
//
// The macros defined by <cstdint> are provided unconditionally. In particular,
// the symbols __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS (mentioned in
// footnotes 219, 220, and 222 in the C standard) play no role in C++.
//
// C11 removed the problematic footnotes.
This new mode averages the colors of all transparent blocks, instead of
making the colors progressively darker and more opaque.
This 'average' mode is now the default when using --drawalpha. It can be
explicitly selected using --drawalpha=average. The old modes can be selected
using --drawalpha=cumulative[-darken].
It is recommended to change the colors of water as well. These are in a
separate patch.
When requesting, for instance, a 75x85 map, the mapper will
now create a 75x85 map, instead of an 80x96 (or even 96x108)
map as it did before.
This new behavior is the default when using one of the options
--centergeometry or --cornergeometry.
In addition, both of these options will no longer shrink the
map, to remove rows or columns of empty blocks at the edges.
Previously, this behavior was enabled with --forcegeometry.
An option --geometrymode has been added as well, to tune
the interpretation of the geometry. It supports 4 flags:
- pixel: the requested geometry is interpreted with pixel
granularity. The map is not enlarged to include
entire map blocks.
- block: the requested geometry is interpreted with block
granularity. The map is enlarged with at most 15
nodes at each of the four edges, so that it
includes entire map blocks only.
- fixed: a map of the requested geometry is created (after
adjustmens for 'block' mode). Empty rows or
columns at the edges are not removed.
- shrink: Empty rows and columns at the map edges are
removed to generate the smallest picture possible.
Lastly, a new geometry syntax has been added, which is more
compatible with known syntax (i.e. X-Windows), and which
allows the offset to be optional. If the offset is omitted,
the picture defaults to be centered around 0,0.
`<width>x<height>[+|-<xoffset>+|-<yoffset>]`
For compatibility, the behavior of the option --geometry
was not changed. If (and only if) used before --geometrymode,
it enables block granularity and shrink.
The old option --forcegeometry is no longer documented,
but still recognised for compatibility.
