G.h

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#include <grass/config.h>
#include <grass/gis.h>

struct G__                      /*  Structure of library globals */
{
    struct Cell_head window;    /* Contains the current window          */
    int window_set;             /* Flag: window set?                    */
    int little_endian;          /* Flag denoting little-endian architecture */
    int compression_level;      /* zlib compression level               */
};

extern struct G__ G__;          /* allocated in gisinit */