[1X3. Global Variables[0X [1X3.1 Getting information about polymake output[0X [1X3.1-1 InfoPolymaking[0X [2X> InfoPolymaking__________________________________________________[0Xinfo class If set to at least 2, the output of polymake is shown. At level 1, warnings are shown. This is the default. And at level 0, the polymake package remains silent. [1X3.1-2 POLYMAKE_LAST_FAIL_REASON[0X [2X> POLYMAKE_LAST_FAIL_REASON__________________________________[0Xglobal variable Contains a string that explains the last occurence of [9Xfail[0X as a return value of [2XPolymake[0X ([14X2.5-1[0X). [1X3.2 Variables for system interaction[0X The variables for interaction with the system are contained in the file [11Xenvironment.gi[0X. Each of these variables has a function to set it, see [14X1.2[0X. If [9XPOLYMAKE_COMMAND[0X or [9XPOLYMAKE_DATA_DIR[0X are set at startup, they are not overwritten. So if you don't want (or don't have the rights) to modify [11Xenvironment.gi[0X, you can set the variables in your [11X.gaprc[0X file. [1X3.2-1 POLYMAKE_COMMAND[0X [2X> POLYMAKE_COMMAND___________________________________________[0Xglobal variable This variable should contain the name of the polymake program in the form as returned by [10XFilename[0X So a probable value is [10XFilename(Directory("/usr/local/bin"),"polymake")[0X. [1X3.2-2 POLYMAKE_DATA_DIR[0X [2X> POLYMAKE_DATA_DIR__________________________________________[0Xglobal variable In this directory the files for polymake will be created. By default, this generates a temporary directory using [9XDirectoryTemporary[0X [1X3.2-3 POLYMAKE_CLIENT_PATHS[0X [2X> POLYMAKE_CLIENT_PATHS______________________________________[0Xglobal variable A list of directories where polymake's the stand-alone clients live. By default, [9XDirectoriesSystemPrograms[0X is used.