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Diff for /src/usr.bin/m4/extern.h between version 1.8 and 1.9

version 1.8, 1999/09/06 13:29:32 version 1.9, 1999/09/14 08:21:36
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 extern char *null;              /* as it says.. just a null. */  extern char *null;              /* as it says.. just a null. */
 extern char rquote[];           /* right quote character (') */  extern char rquote[];           /* right quote character (') */
 extern char scommt[];           /* start character for comment */  extern char scommt[];           /* start character for comment */
   
   /* gnum4.c */
   extern FILE *fopen_trypath __P((const char *filename));
   extern void addtoincludepath __P((const char *dirname));

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Removed from v.1.8  
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  Added in v.1.9