Moved paths.h out of rtio.h and included it manually where R_OK was needed
Reduced compile warnings, and other compatibility fixes.
Added gethomedir.c and various compatibility fixes.
Added prototypes and includes from patch by Randolph Fritz. Added more required includes and reduced other compile warnings.
Gotta pay more attention when replacing conditionals. Reversing test.
Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.
Abstracted process and path handling for Windows. Renamed FLOAT to RREAL because of conflict on Windows. Added conditional compiles for some signal handlers.
Replaced inline copyright notice with #include "copyright.h"
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
changed behavior to check access whenever search path is given
Changes for PC port
modified testing of DIRSEP to allow multiple possible values
added paths.h file to define DIRSEP and the like
fixed sloppiness on conditional compiles for UNIX
added macros for directory and path separation characters
added escape character for paths including colon
updated revision number for release 2.0
Initial revision
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