wiki:CompileOnWindows

Version 328 (modified by martinl, 9 years ago) ( diff )

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Compiling GRASS on MS-Windows

Dependencies required for building with MinGW

Compiling your own copy of GRASS is greatly simplified by using the MSYS2 and OSGeo4W directory structure to install most dependencies and downloading the rest from a few other locations. Follow the steps below to set up the build environment for GRASS GIS.

Install the OSGeo4W directory structure

OSGeo4W has several of the required dependencies for compiling GRASS GIS:

  1. Download the OSGeo4W installer - 32bit or 64bit
  1. Run the installer.
  1. Select Advanced Install, and Next.
  1. Set the install directory to C:\OSGeo4W (32bit) or C:\OSGeo4W64 (64bit) (other directories are fine if there are no spaces in the path but make sure to adjust the instructions below). The MSYS maintainers have made it clear that they will not support spaces in path names nor accept patches fixing those issues. With some patches to msys.bat however it is possible to install a built GRASS into C:\Program Files\.
  1. Select:
    • cairo
    • gdal
    • geos
    • fftw
    • fftw-devel (32bit only)
    • freetype-devel
    • freetype-devel-mingw (32bit only)
    • iconv
    • libjpeg
    • liblas-devel
    • libpng
    • libpq
    • libtiff
    • libxdr
    • pdcurses
    • proj
    • regex-devel
    • sqlite3
    • zlib
  1. Optionally select also GDAL plugins for common GIS formats (be careful not to introduce GPL incompatibilities)
    • gdal-ecw
    • gdal-mrsid
  1. Click Next, the selected packages and their required subpackages will be downloaded and installed automatically.

Install the MSYS2 directory structure

MSYS2 has several of the required dependencies for compiling GRASS GIS (like gcc and others):

  1. Download and install MSYS2 - 32bit or 64bit.
  1. Start MSYS2 terminal and install requirements (both 32bit and 64bit):
pacman -S tar libintl make bison diffutils subversion dos2unix
  1. Install MinGW-w64 toolchain:
  • 32bit:
    pacman -S mingw-w64-i686-toolchain mingw-w64-i686-cairo mingw-w64-i686-python2-numpy mingw-w64-i686-sqlite3
    
  • 64-bit:
    pacman -S mingw-w64-x86_64-toolchain mingw-w64-x86_64-cairo mingw-w64-x86_64-python2-numpy mingw-w64-x86_64-sqlite3
    

Compiling and Installing GRASS GIS

Start MSYS2 terminal - mingw32_shell.bat (32bit) or mingw64_shell.bat (64bit).

  1. Download GRASS source code (see wiki:DownloadSource for details). Example for development version (trunk):
cd /usr/src
svn checkout https://svn.osgeo.org/grass/grass/trunk grass_trunk
  1. Switch to GRASS GIS source code directory (in our case grass_trunk) and run package.sh compilation script:
cd grass_trunk

# for release builds on 32bit
./mswindows/osgeo4w/package.sh

# for daily builds on 32bit
PACKAGE_POSTFIX=-daily ./mswindows/osgeo4w/package.sh

# for release builds on 64bit
OSGEO4W_POSTFIX=64 ./mswindows/osgeo4w/package.sh

# for daily builds on 64bit
PACKAGE_POSTFIX=-daily OSGEO4W_POSTFIX=64 ./mswindows/osgeo4w/package.sh
  1. Check error.log for any error messages and mswindows/osgeo4w/package.log if you're having problems.

GRASS GIS should now be installed in c:\osgeo4w\apps\grass\grass-7.1.svn.

Usage

To start GRASS use the icon on the desktop or if you want to be able to use the command line from within GRASS.

Type in cmd console (assuming that we compiled GRASS 7.1):

c:\osgeo4w\bin\grass71svn.bat

Creating a WinGRASS Installer

The instructions for creating a WinGRASS native installer (self-contained package installer) using the scripts contained in the mswindows directory. In order to avoid mistakes or misunderstandings, we highly recommend to follow each step and command exactly as they are written in this document. See also scripts used for daily builds.

Install MSYS2/OSGeo4W Tree and Compile GRASS

First of all download the MSYS2, OSGeo4W installers, install the required dependencies, and build GRASS GIS from source (see notes above). Do not move on to step two until you have successfully tested your new version of GRASS.

Create a GRASS self-contained Package

  1. Copy all the content of the mswindows directory to a temporary directory, for example c:\temp.
  1. Launch the file c:\temp\GRASS-Packager.bat.
  1. When finished, you should have a GRASS self-contained release package in c:\temp\GRASS-<Version>-Package, e.g. c:\temp\GRASS-70-Package.

Install NSIS (2.46)

  1. Download the NSIS installer
  1. Install to c:\DevTools

Install NSIS: Untgz Plugin (1.0.16)

  1. Download the NSIS Untgz Plugin
  1. Unzip to c:\DevTools\Plugins\

Install NSIS: AccessControl Plugin

  1. Download the NSIS AccessControl Plugin
  1. Unzip to c:\DevTools\

Create the WinGRASS Installer

  1. Launch c:\temp\GRASS-Installer.nsi.
  1. When finished, you should have the WinGRASS installer in c:\temp.

Misc

LibreDWG

Required by GRASS Addons v.in.redwg.

  1. Download http://www.gnu.org/software/libredwg/

TODO: Finish this part.

WinGRASS 64bit Notes

External notes for building windows 64bit-binaries:

Tool chains for building windows 64bit-binaries:

Hints

Startup errors after installation

See here: http://grass.osgeo.org/wiki/WinGRASS_errors

See also

  • Besides Cygwin and MinGW there is another along similar lines called "som" or "gow" or something?

Errata

  • Some anti-virus software seem to think that the r.out.png.exe module (etc.) is a sneaky attempt to fool you into thinking it's an image instead of what it really is: a program which exports a PNG file. g.version is also reported to set them off. You'll have to bypass these over-zealous warnings as appropriate.

Open Tickets

winGRASS 6:

#226
WinGRASS fails to create .gislock opening a mapset
#508
hardcoded /dev/null
#573
stanalone installer: include the release notes
#606
WinGRASS GIS.m: broken newlines in output window
#805
i.spectral in GRASS6.4
#820
r.in.wms doesn't work in WinGRASS installer distribution
#966
wx attribute table manger fails on wingrass with >188 dbf tables
#984
v.out.ogr to MySQL does not work propely
#1005
db.out.ogr together with g.parser doesn't play nicely with non-lati characters containing DSN
#1042
winGRASS: r.statistics complains if path to grassdb has spaces
#1053
After abort command v.surf.rst from wxGUI vector output of devation (devi) couldn´t be removed, or overwrited
#1166
r.tileset: projection string munching on wingrass
#1182
.inputrc improving msys WinGRASS command line
#1193
Python Menu: Japanese (double byte character) in menu may cause parser error.
#1235
ERROR: G_getenv(): Variable LOCATION_NAME not set
#1282
WinGrass using www.python.org-installation
#1290
WinGrass: v.krige not working due to missing rpy2 pkg for MS Windows
#1447
wxGUI wingrass scripts need whitespace in path
#1514
wingrass - different wingrass-modes are differently translated
#1556
wingrass - g.message in a python-script - no output
#1664
Texts in command dialogs are garbled
#1891
wingrass: background dosbox from regular wxgui startup
#1945
wingrass: Command Line can't find grass.python libs
#1952
wingrass: please add tac and seq to extrabin
#1953
wingrass: GRASS6\wx file has \r\r\n newline
#1959
wingrass wx carto composer: Image causes traceback
#1962
wingrass installer: install_msruntime dir not deleted despite rule for it
#1964
m.proj on wingrass: protect g.proj's path name to the grid file
#2215
wxGUI file type option. File path corrupt if contained backslash
#2390
Command console is crashing if any system user name contains accented character
#2755
Commandline switch "/S" is not working anymore
#2890
wxGUI.PsMap error loading two types north arrow and grass gis logo in the cartographic composer layout
#3047
MySQL driver failed to install
#3156
Cannot export GRASS raster map using r.out.png (crashes on windows)
#3408
r.tileset fails on windows due to permissions error
#3548
sql where statement encoding issue on windows
#3655
Add PDAL to standalone GRASS GIS install
#3855
update WinGRASS standalone installer to use GRASS_VERSION_GIT variable
#3925
winGRASS 7.8.1dev: 'charmap' codec can't decode byte 0x9d - issue in vector attribute data handling (e.g. opening attribute table, v.report, etc)

winGRASS 7: No results

Closed Tickets

#13
GRASS OGR Module failing
#65
WinGRASS: Starting up gis.m & hangs (probably on g.region)
#86
d.rast.edit.tcl: doesn't start from wxPython without aspect map
#111
r.los fails with high values for max_dis parameter
#118
r.patch fails on Vista
#127
WinGRASS Tcl/Tk GUI - Text formatting error in Output window
#142
WinGRASS Native: Ground Control Points Usability
#160
WinGRASS: v.report incompatability issue
#162
r.regressionline incompatability issue in WinGRASS
#234
v.type, v.type.sh, GUI and WinGRASS
#317
WinGRASS MSYS Console doesn't run correctly
#363
WinGRASS: Accsess Denied in .grassrc6
#389
Georectify tool adds two EN coord pairs to one point in POINTS file
#469
raster data needs binary mode on windows
#478
MSYS Console fails to start when installed in Windows at a path with spaces.
#499
fresh windows startup not very friendly
#531
win grass6.4.0RC3 - started with --help returns no help
#534
g.gui doesn't work in ms-windows
#541
wxDigit on windows fails (osgeo4w 6.4.svn)
#555
v.in.gpsbabel on wingrass: g.proj error
#559
wingrass stand-alone installer: MSys console doesn't work
#560
WinGRASS not deleting temp ppm files from map display
#570
startup problem with standalone winGRASS install and custom python
#575
stanalone installer: permission denied on mdoule execution
#580
WinGRASS: $GISBASE/etc/gui/scripts/ require something like $(EXE) to run
#581
v.in.ogr from wxGUI in wingrass fails to getInterfaceDescription
#585
init.bat should give usage info with --help
#586
WinGRASS: 3D view wxNVIZ does not work
#588
wxGUI: About GRASS GIS window doesn't let you view full lic or devs
#593
WinGRASS GIS.m: cannot select maps from mapset GUI
#595
WinGRASS g.version -c fails
#617
r.sim.water crashes on WinGrass
#627
wingrass native: wxNVIZ exits with lib compat error
#628
wingrass native: vdigit error on new map
#629
WinGRASS: spaces in pathnames
#634
v.out.ogr error on Vista
#637
Problems with paths in the TCL/TK Windows GUI
#639
Wingrass native r.in.aster doesn't work
#653
consider using console instead of cmd.exe
#655
g.manual fails to open a browser
#711
r.horizon crashes
#713
OSGeo4W patch for g3d lib
#715
OSGeo4W patch for DLLs
#736
r.proj fails in wingrass
#740
v.edit returns incorrect results on Windows
#744
package.sh for compiling on windows
#757
WinGRASS: GUI window from cmd line
#759
r.patch non-functional in WinGRASS 6.4 svn on Vista
#783
r.watershed fails on wingrass
#786
Update to http://svn.osgeo.org/grass/grass/branches/releasebranch_6_4/mswindows/README.html
#806
WinGRASS: Problem with special characters (wxpython GUI)
#809
v.db.addtable consistently fails in winGrass
#811
MYSYS shortcut starts an infinite number of windows
#813
Location wizard - false path to the epsg-file
#827
standalone-installer: execution failed on g.proj.exe -p
#843
v.digit broken on new WinGrass release
#856
r.proj fails in WinGRASS-6.4.0SVN-r40049-1
#867
WinGrass64-compiling: `libintl_printf' is an unrecognized format function type'
#875
WinGrass-Installer - definition of the destination folder
#877
wxGUI: Location wizard bug when creating LatLong location
#878
v.external not working on WinGrass
#881
winGRASS compilation: dumpbin: command not found
#882
i18n enabled winGRASS: properties dialog not opening
#884
WinGrass: reducing size of the installer
#885
WinGrass: displaying r.external-linked raster data not working
#889
Msys-based commands fail when winGRASS is installed in %ProgramFiles%
#890
shell scripts: %TMP% namespace collision
#894
wingrass uninstaller: left over files
#897
WinGrass: error with "Query vector map (edit mode)"
#898
WinGrass: r.out.xyz error
#904
WinGrass: include patched msys.bat in the WinGrass-Installer
#905
WinGrass: include patched msys.bat in the WinGrass-Installer
#908
No Font Definition File, windows xp
#913
(windows) r.external does not work in both osgeo4w and standalone packages
#917
v.digit map creation weirdness on wingrass
#922
GRASS installer can not install unser "program files" (Windows7 only)
#924
no Start Menu entry created in Windows 7
#930
Wingrass7 - compiling errors
#931
wingrass7 - wxgui not starting
#932
Wingrass7 - ImportError: No module named grass - Fix PYTHONPATH?
#961
WinGRASS-6.4.0SVN-r40852-1 installs GRASS, but it doesn't run
#972
Provide visual feedback when loading available vector map list
#973
Unable to scroll map selection dropdown lists with mouse scroller
#976
WxGUI histogram tool-bar icons messed up in WinGRASS
#979
WxGUI fails to display vector attribute table if default db connection is missing
#980
WinGRASS shouldn't use Internet Explorer as a default browser
#986
WinGrass-Installer - Enhancement
#995
WxGUI startup screen fails if GISDBASE path contains non-latin characters
#996
Wingrass needs newer tcl version due to bug in file encodings
#1004
WxGUI CMD fails if command contains non-latin letters
#1006
r.terraflow fails to stat() stream file on Windows
#1007
WxGUI should provide visual feedback when adding new db column
#1008
WinGrass7 - disable LFS
#1015
WinGrass7: starting grass by grass70.py fails
#1017
WinGrass7 - wxgui error
#1018
v.in.ogr.. Bad file descriptor: Files
#1019
winGRASS: 'layer manager' window hidden by 'mapdisplay' windows
#1020
Display of vector maps fails
#1022
v.out.ogr fails on wi7
#1027
WinGrass7 + pythonhome/pythonpath
#1038
v.surf.rst fails in Windows 7 with "Access is denied"
#1041
winGRASS Tcl/Tk: Cannot save image files (PNG/JPG/BMP/etc)
#1044
Crash on startup directly after install (wrong copy of python dll picked up)
#1052
Build of 7.0.SVN dont work
#1079
wxpython GUI error in d.vect
#1080
Windows native installer: reinstall
#1083
Wingrass7 - versioned libgrass needed for start, unversioned libgrass needed for wxnviz
#1090
Access is denied - r.statistics
#1091
WinGrass7 + v.krige: rpy2 not installed + nightly Wingrass-build
#1092
WinGrass + R's installation path in %PATH%
#1099
GRASS 6.4SVN with MSYS fails to start startup screen
#1101
WinGrass7 + scripts are not found in the command line
#1103
WinGrass64 - windows-commandline not released
#1106
r.terraflow limited to 32bit temp files in WinGrass
#1108
packaging osgeo4w-gdal18 in WinGrass-installer
#1110
v.rast.stats locks up on wingrass
#1116
g.proj & g.region fail after cygwin install
#1117
WinGrass7 - wxgui not starting
#1118
WinGrass7 - NVIZ not working
#1122
Command line hangs where dialog boxes work
#1125
wingrass - ctypes - compiling error
#1131
Global LFS for wingrass
#1134
WinGrass - 3D view mode crashes
#1139
v.report has a problem (only via OSGEO4W package)
#1140
Formula in Raster Map Calc is not working with 'IF' condition, and NOT to have space. Only from GUI after commna.
#1141
GLWindow.OnPaint() broken on Windows
#1143
WinGrass64RC7 - db.execute
#1149
WinGrass - load R-installation-path dynamically into PATH
#1157
WinGrass-Installer should include a working gdal-version which is built against
#1158
Removing vector map in Windows fails with "Unable to delete vector map"
#1160
WinGrass: compiling against osgeo4w's gdal17 fails
#1163
wx wms import tool error
#1164
newlines in sed scripts not portable for wingrass
#1165
wingrass: cs2cs fails from the msys command line
#1169
wget misses libssl32.dll (affects r.in.wms)
#1171
wingrass: include a gpsbabel with XML support
#1178
WinGrass: g.extension - problem with path to $GISBASE
#1179
daily wingrass binary snapshots are down
#1181
r.le.setup fails on WinGRASS due to missing xterm
#1184
"d.vect display=attr" imply grass open process but doesn't close them.
#1185
v.in.ogr on WinGrass: "Bad file descriptor"
#1186
WinGrass7 - v.krige not working
#1189
wingrass: 'g.region -l' fails when using a NTv2 grid file
#1190
Error on compiling GRASS in Windows using osgeo4w
#1197
d.grid fails with -g flag in winGRASS
#1198
Error while parsing file paths in WinGRASS with Scripts
#1201
wingrass, gdal, proj4
#1207
installation incomplete/messed
#1210
g.remove fails to remove vector files under GRASS/OSgeo4w
#1213
wingrass 64bit branch
#1215
db.tables in Windows layer manager does not populate driver field for pg
#1217
d.vect -a flag locks up the wxGUI on windows
#1220
Error when creating vector(areas) from raster
#1253
wingrass7 - i.aster.toar - compiling error
#1260
Georectifier: RMS broken
#1267
Error on zoom to selected [vector] map
#1270
wingrass: Error in Attribute Table Manager
#1271
osgeo4w patch update
#1275
zipped HGT Import fails on wingrass as "unzip" isn't in the package
#1276
r.null after v.to.rast in winGRASS does not work properly
#1280
problem about the output of g.parser
#1286
clean_temp can not be called before LOCATION_NAME is set
#1287
Windows native installers TCL lacks .enc files for non-latin 1 encodings
#1288
g.dirseps breaks non-latin file/folder names on Windows
#1289
wingrass65 - Vector digitizer not available: Reason: xdr not found
#1292
Profile tool incorrectly processes no data values
#1297
db.out.ogr fails to start in 6.5
#1298
v.digit crashes dbf.exe on Windows when creating attribute table
#1299
Provide user-friendly error message when trying to edit vectors in Windows
#1301
wingrass: db.in.ogr fails to load .csv file
#1303
v.in.ogr leaves TMP file after import
#1307
wingrass: new wxgui dialog for v.in.ogr in windows7 does not show *.shp files
#1308
wingrass - dbf.exe-crash
#1310
Browse button in WxPython GUIs (for scripts) does not provide a correct file path for WinGRASS
#1331
winGrass: hangs when displaying vector attribute labels
#1332
wingrass: during install generating font configuration file fails
#1354
Missing MSVCR71.dll / MSVCP.dll prevent winGRASS from starting
#1358
WinGRASS 6.4.1: SQLite driver errors: `Unable to open database'
#1380
WxGUI, menu does not work at all (languages using double-byte characters)
#1387
wingrass65 - wxgui compiling error and not starting
#1394
Missing MSVCR71.dll on startup
#1415
closecell: can't move + quant file error in winGRASS Msys shell
#1417
Error during Grass start
#1419
wingrass - change commandline to "windows home"
#1428
WinGRASS + how to deliver Microsoft Visual C++ Redistributable Package (vcredist)?
#1450
grass 6.4.svn nightly build fails on startup
#1460
wingrass7 not compiling
#1477
error running v.what.vect under Windows/Osgeo4w
#1484
GRASS6.4.2SVN WX-Python GUI, menu does not work at all
#1485
Cannot save workspace from wxGUI
#1504
NVIZ shows only English Menu
#1535
winGRASS g.extension.py problems
#1543
WXGUI GDAL/OGR import dialogs fail to open in WinGRASS
#1544
(Windows/osgeo4w) libtiff.dll is broken
#1546
references to g.echo in devbr6
#1547
wxGUI Cartographic Composer: division by zero
#1548
v.generalize: strange behaviour on win
#1549
r.to.vect lines not working well?
#1552
WinGRASS: spaces in pathnames for r.in.aster
#1553
osgeo4w and qgis builds: path settings to msys on wingrass find wrong 'sort'
#1554
wxGUI Cartographic Composer: preview broken on Windows
#1555
python-scripts in wingrass64svn
#1579
wingrass: errors while a DB is open results in a zombie dbf.exe
#1586
v.in.wfs complains about xerces-c support in GDAL
#1622
winGrass 7 error
#1629
v.in.db - odbc-driver - access-database: not working
#1634
wingrass7: i.spectral -error
#1639
wingrass: launching wxNviz fails
#1692
calling a script within a script failing on Windows XP
#1695
WinGRASS does not launch
#1698
Exiting GUI leaves minimized CMD window open
#1700
wingrass6.4.3svn: changing vector point symbol doesn't work
#1701
wingrass: python crashes by quit GUI after using 3D view in map display
#1706
wingrass: open attribute table fails
#1737
Windows users cannot access manage table controls in attribute manager
#1738
Cannot view vector table in wxGUI
#1746
Map Display Output Save Issue
#1768
wingrass6.x: python addon scripts aren't working
#1782
wingrass7: installing addons by wxgui-extensions manager fails
#1803
GRASS 6.4.3RC1 on Win 7: grass64.bat fails due to UNIX line endings in Init.bat
#1837
d.rast.edit error when attempting to edit a raster
#1844
wingrass: db_open_select_cursor fails for DBF driver.
#1866
broken db driver communication in winGRASS 7
#1869
wingrass7: r.in.wms - ERROR: Unable to load GDAL python bindings
#1890
wingrass: launch grass terminal fails
#1895
wingrass installer problems: missing DLLs
#1904
wingrass6.4.3svn: vector digitizing - a sort of incomplete
#1911
v.hull bit broken output on wingrass
#1940
wingrass - nsis - script in release mode: !define SVN_REVISION "@GRASS_VERSION_SVN@" not set
#1941
wxGUI fails with Japanese locale --> mixed Python installs on Windows
#1944
wingrass: python missing from extrabin
#1946
wingrass: demolocation includes .svn/ cruft
#1947
wingrass: %APPDATA%/GRASS6/grassrc6 and rc files
#1950
wingrass: replace rxvt with conhost.exe
#1956
Cartographic Composer: Raster map is not shown in preview
#1960
wingrass wx carto composer: adding north arrow causes Error and traceback
#1966
filesystem cruft from wingrass installer
#1983
wingrass: permission denied to open grass70.py
#2002
The ordinal 32 could not be located in the dynamic link library proj.dll
#2011
WxGUI, menu does not work at all (languages using double-byte characters)
#2015
Missing file association dialog pops up all the time
#2038
wingrass7: v.db.addcolumn fails in attribute table manager
#2039
Startup Error: G_getenv(): Variable LOCATION_NAME not set
#2067
PyGRASS grid calls g.region at import time
#2079
wingrass7: no manifest files
#2096
Missing libintl-8.dll from all Windows binaries
#2138
winGRASS6.4.svn - addon python script status?
#2144
winGRASS6.4.svn - GUI problems with postgres as database backend
#2253
WinGRASS doesn't allow to close console window
#2279
wingrass71: rendering problems with raster layers automatically added by finished modules
#2283
wingrass: failure when loading addons
#2292
compiling grass in windows 8
#2372
GRASS 7 on windows starts with minimized CMD window
#2388
GRASS 7.0 Beta 3 for windows r.in.lidar cannot read .laz files
#2389
Error in Grass-gis 7.1. svn
#2392
winGRASS GIS 6.4.5 svn r.li modules - issues with hard coded path to conf files
#2393
winGRASS GIS 6.4.5 svn r.li.setup not working
#2395
Startup runs as in Cygwin when CYGWIN is set although running as native application
#2420
WinGRASS 7.1 download / website
#2597
v.surf.bspline fails on windows
#2624
r.horizon problem in Windows (horizon_zud)
#2631
Future winGRASS needs python-ply package
#2661
sqlbuilder: verify button
#2711
v.patch -e crashes
#2720
r.in.gdal don't start on wingrass 7.0.1
#2772
Installing addons for windows gives error that File is not zip file
#2807
Simplify download options for MS Windows
#2811
Reduce number of Start menu shortcuts on MS Windows
#2821
Google Chrome blocks download of daily build
#2870
d.fontlist crashes on Windows
#2879
grass.script.array cannot read raster on Windows
#2892
t.rast.aggregate: error when input space time raster dataset store many rasters
#2939
Grass 7.0.3 Virus problem ?
#2945
MD5sum for WinGRASS-7.1.svn-r67975-87-Setup-x86_64.exe does not match md5sum file
#2975
support bash on windows 10
#3057
Problems with Numpy and matplotlib after updating through OSGeo4W
#3073
addons installl error
#3315
wingrass: provide grass.bat
#3505
Opening a workspace file
#3508
grass start up: buggy to_text_string
#3513
WinGRASS 7.5 installation error: missing ZSTD
#3716
upgrade winGRASS build environment to GDAL 2.4.0
#3718
wingrass: include also unversioned libraries
#3723
winGRASS7.7.svn - core.py - python 3 issues
#3724
wrong OSGEO4W_ROOT when installing OSGeo4W to different target directory
#3731
winGRASS7.7.svn python3 build issues
#3732
wingrass: change instalation target
#3733
winGRASS 7.7svn execute command fails
#3749
winGRASS7.7.svn python 3: GUI freezes at start
#3837
OSGeo4W winGRASS77svn - startup error: TypeError: endswith first arg must be bytes or a tuple of bytes, not str
#3861
winGRASS master (git) - g.proj not found at startup
#3871
winGRASS: vector digitizing error messages
#3872
winGRASS Version: 7.7.dev - wrong german Umlaut in wxGUI
#3873
winGRASS Version: 7.7.dev - deprecated warning in 3D modus
#3882
winGRASS: not able to digitize vector polygons
#3981
winGRASS: defining a new location by EPSG code: TypeError: invalid result from TransList.OnMeasureItem(), an integer is required (got type NoneType)

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