STRIDE is used by VMD to compute the secondary structure given the
protein 3D coordinates. The appropriate STRIDE binary is included in
the VMD binary distribution. To compile it yourself, see the web site at
http://www.embl-heidelberg.de/stride/stride_info.html for information
on how to get the source and see ./lib/stride for information on how
to use it with VMD.
Change line 43 of stride.h from
#define MAX_AT_IN_RES 50
to
#define MAX_AT_IN_RES 75
because there are many structures with non-standard residues
containing more than 50 atoms.
Change line 96 of stride.c from
return(SUCCESS);
to
return(0);
since a program should return 0 if everything ended correctly.