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diff --git a/gis/saga-gis/README b/gis/saga-gis/README index 9fba69678b..25b4b6a1ad 100644 --- a/gis/saga-gis/README +++ b/gis/saga-gis/README @@ -1,16 +1,42 @@ -System for Automated Geoscientific Analyses (SAGA) is a Geographic Information -System software with immense capabilities for geodata processing and analysis. +System for Automated Geoscientific Analyses (SAGA) is a Geographic +Information System software with immense capabilities for geodata +processing and analysis. -SAGA supports the implementation of new functions with an effective API. -Functions are organised as modules in framework independent Module Libraries -and can be accessed via SAGA's Graphical User Interface or various scripting -environments (shell scripts, Python, R and so on). +SAGA supports the implementation of new functions with an effective +API. Functions are organised as modules in framework independent +Module Libraries and can be accessed via SAGA's Graphical User +Interface or various scripting environments (shell scripts, Python, +R and so on). -SAGA can use these optional dependencies: libharu, postgresql and qhull. SAGA -currently does not build when vigra is installed. +SAGA can use these optional autodetected dependencies enabled if they +are found in the system: +libharu, OpenMP, OpenCV, qhull, vigra, pdal, postgresql/postgis, +libLAS, proj, hdf5. Previous issues given with OpenCV version 4 or +greater and vigra seem solved in last versions of SAGA. -To enable opencv, set OPENCV=ON. By default OpenCV is disabled since SAGA does -not build when OpenCV version 4 or greater is installed. - -If SAGA fails to run after an upgrade, uninstall old versions of SAGA before -compilation. +WARNINGS: +1) Unlike earlier versions of SAGA, the build of last versions + requires wxGTK3 => 3.1 that is not available in Slackbuilds.org at + the moment. If you want to build this version of SAGA you have to + install the package wxWidgets (also available in Slackbuilds.org). + If you have both wxGTK3 and wxWidgets installed in your system, + make sure that wxWidgets is installed after wxGTK. +2) SAGA requires an ODBC driver in the system. It works both with + iODBC (installed with the libiodbc package (included in Slackware + 15.0) and unixODBC (installed from the SBo's slackbuild). The build + first searches for unixODBC then for iODBC. It fails if any driver + is found. These drivers are in conflict so, if you have installed + and then removed unixODBC, please make sure to reinstall libiodbc. + You should also consider that a package prebuilt in a Slackware + with unixODBC should not be installed in a system with iODBC (and + vice versa). +3) unixODBC is a required dependency in 32 bit systems: the source + code of SAGA conflicts with the code of a libiodbc header + (/usr/include/iodbcunix.h) and the build fails. This issue can be + overcome by installing unixODBC from the SBo's slackbuild. +4) For current users: the build of Python bindings fails since the + upgrade of swig package to version 4.2 in current (January 2024). + Therefore Saga with support to Python will be disabled in current + if the version of swig installed is earlier than 4.0.2. If you + require the support to Python you must downgrade swig to the version + released in Slackware 15.0. |