[GRASS5] Problems compiling grass51/57 on cygwin

[Buchan Milne]

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I need just a basic grass51/57 on cygwin (since I do actualy work on
linux, but for a simulation I need it running on Windows), so I tried to
build from my cvs snapshot from the weekend that built fine with all
options on my linux boxes, but I still ran into problems.

Firstly, it seems 'make mix' has problems on Cygwin (due to problems
with symbolic links it sees).

Secondly, I got the common cygwin error "undefined reference to
WinMain at 16". Googling for this seemed to indicate that the "-shared"
option needs to be passed for linking, so I added this in
include/Make/Shlib.make (I guess there should be a better solution).

The build then at least procedes further and links some libraries, but I
then get a whole bunch of errors in lib/gis/env.c (starting with
G_GISRC_MODE_FILE undeclared), which I haven't as yet been able to resolve.

Is anyone else seeing these issues (or do I need to update my Cygwin
installation - it was running the binary dist of 5.0.0 quite well though)?

It would help if the documentation (ie INSTALL) mentioned at least the
first issue (if it's not irrelevant).

Finally, I would also be interested in a binary Cygwin build (I
essentially just need to be able to compile something similar to
v.net.path ...) if anyone has one.

Regards,
Buchan

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Buchan Milne                Mechanical Engineer, Network Manager
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