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--- howtos:how_to_compile_grass_on_slackware [2026-02-20 08:10 am] – removed - external edit (Unknown date) 127.0.0.1
+++ howtos:how_to_compile_grass_on_slackware [2026-02-20 08:10 am] (current) – hcho
@@ Line 1: / Line 1: @@
+====== How to compile GRASS on Slackware ======
+This HOWTO explains how to compile [[https://grass.osgeo.org/|GRASS]] on Slackware.
+<code bash>
+# switch to root
+su -
+# create postgres group and user for postgresql, one of pdal dependencies
+groupadd -g 209 postgres
+useradd -u 209 -g 209 -d /var/lib/pgsql postgres
+# install dependency libraries;
+# build queuefiles, not packages, to automatically build any other dependencies
+sbopkg -k -i "proj gdal pdal blas lapack"
+# switch to non-root
+exit
+# clone github repositories
+mkdir -p ~/usr/local/src
+cd ~/usr/local/src
+git clone https://github.com/HuidaeCho/grass-build-scripts.git
+git clone https://github.com/OSGeo/grass.git
+git clone https://github.com/OSGeo/grass-addons.git
+git clone https://github.com/OSGeo/gdal-grass.git
+# create ~/.grassbuildrc
+cd grass-build-scripts
+cp .grassbuildrc-example ~/.grassbuildrc
+# build grass
+./build.sh -m -a -g >& ~/usr/local/src/grass/build.log
+# install pkgconfig config
+mkdir -p ~/usr/local/share/pkgconfig
+cd ../grass
+sed 's#/usr/local/grass[^/ ]*#'$HOME'/usr/local/src/grass/dist.x86_64-pc-linux-gnu#g' grass.pc > ~/usr/local/share/pkgconfig/grass.pc
+if ! echo $PKG_CONFIG_PATH | grep -q $HOME/usr/local/share/pkgconfig; then
+  echo 'export PKG_CONFIG_PATH="$HOME/usr/local/share/pkgconfig:$PKG_CONFIG_PATH"' > ~/.bash_profile
+  . ~/.bash_profile
+fi
+# create grass script
+mkdir ~/usr/local/bin
+cat << 'EOT' > ~/usr/local/bin/grass
+#!/bin/sh
+grass_master="$HOME/usr/local/src/grass/bin.x86_64-pc-linux-gnu/grass"
+# workaround to avoid the annoying ~/grassdata/world_latlong_wgs84 feature
+if [ $# -eq 0 ]; then
+        last_used_mapset=$(awk '
+                /^GISDBASE: /{gisdbase=$2}
+                /^LOCATION_NAME: /{location_name=$2}
+                /^MAPSET: /{mapset=$2}
+                END{
+                        printf "%s/%s/%s", gisdbase, location_name, mapset
+                }' ~/.grass8/rc)
+        $grass_master "$last_used_mapset"
+else
+        $grass_master "$@"
+fi
+EOT
+chmod a+x ~/usr/local/bin/grass
+if ! echo $PATH | grep -q $HOME/usr/local/bin; then
+  echo 'export PATH="$HOME/usr/local/bin:$PATH"' > ~/.bash_profile
+  . ~/.bash_profile
+fi
+</code>