Bourne Shell compilation attempt.

root@kali:~# gcc sh.c
In file included from defs.h:75,
                 from sh.c:10:
mode.h:46:15: error: array type has incomplete element type ‘struct sysnod’
   46 | STRUCT sysnod SYSTAB[];
      |               ^~~~~~
mode.h:55:7: warning: unnamed struct/union that defines no instances
   55 | union { int _cheat;};
      |       ^
mode.h:76:8: error: expected ‘{’ before ‘void’
   76 | struct void {INT vvvvvvvv;};
      |        ^~~~
mode.h:76:8: error: two or more data types in declaration specifiers
In file included from sh.c:10:
defs.h:80:15: warning: conflicting types for built-in function ‘malloc’; expected ‘void *(long unsigned int)’ [-Wbuiltin-declaration-mismatch]
   80 | #define alloc malloc
      |               ^~~~~~
defs.h:81:10: note: in expansion of macro ‘alloc’
   81 | ADDRESS  alloc();
      |          ^~~~~
defs.h:77:1: note: ‘malloc’ is declared in header ‘<stdlib.h>’
   76 | #include "name.h"
  +++ |+#include <stdlib.h>
   77 |
In file included from sh.c:10:
defs.h:150:9: warning: type defaults to ‘int’ in declaration of ‘reserved’ [-Wimplicit-int]
  150 | SYSTAB  reserved;
      |         ^~~~~~~~
sh.c: In function ‘expand’:
sh.c:30:5: warning: type of ‘rflg’ defaults to ‘int’ [-Wimplicit-int]
   30 | INT expand(as,rflg)
      |     ^~~~~~
sh.c:68:17: warning: implicit declaration of function ‘open’; did you mean ‘opendir’? [-Wimplicit-function-declaration]
   68 |      ANDF (dirf=open(s,0))>0
      |                 ^~~~
      |                 opendir
sh.c:80:9: warning: implicit declaration of function ‘read’; did you mean ‘readpr’? [-Wimplicit-function-declaration]
   80 |   WHILE read(dirf, &entry, 16) == 16 ANDF (trapnote&SIGSET) == 0
      |         ^~~~
      |         readpr
sh.c:85:7: warning: implicit declaration of function ‘gmatch’ [-Wimplicit-function-declaration]
   85 |    IF gmatch(entry.d_name, cs)
      |       ^~~~~~
sh.c:89:3: warning: implicit declaration of function ‘close’; did you mean ‘closedir’? [-Wimplicit-function-declaration]
   89 |   close(dirf);
      |   ^~~~~
      |   closedir
sh.c: At top level:
sh.c:114:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
  114 | gmatch(s, p)
      | ^~~~~~
sh.c:159:12: error: static declaration of ‘addg’ follows non-static declaration
  159 | LOCAL VOID addg(as1,as2,as3)
      |            ^~~~
sh.c:27:11: note: previous declaration of ‘addg’ was here
   27 | PROC VOID addg();
      |           ^~~~
sh.c: In function ‘addg’:
sh.c:181:2: warning: implicit declaration of function ‘makearg’ [-Wimplicit-function-declaration]
  181 |  makearg(endstak(s2));
      |  ^~~~~~~
sh.c: At top level:
sh.c:184:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
  184 | makearg(args)
      | ^~~~~~~
sh.c: In function ‘makearg’:
sh.c:187:6: error: request for member ‘argnxt’ in something not a structure or union
  187 |  args->argnxt=gchain;
      |      ^~
sh.c:188:8: warning: assignment to ‘ARGPTR’ {aka ‘struct argnod *’} from incompatible pointer type ‘STRING’ {aka ‘char *’} [-Wincompatible-pointer-types]
  188 |  gchain=args;
      |        ^
In file included from sh.c:10:
sh.c: At top level:
defs.h:139:6: warning: array ‘atline’ assumed to have one element
  139 | MSG  atline;
      |      ^~~~~~
defs.h:140:6: warning: array ‘readmsg’ assumed to have one element
  140 | MSG  readmsg;
      |      ^~~~~~~
defs.h:141:6: warning: array ‘colon’ assumed to have one element
  141 | MSG  colon;
      |      ^~~~~
defs.h:142:6: warning: array ‘minus’ assumed to have one element
  142 | MSG  minus;
      |      ^~~~~
defs.h:143:6: warning: array ‘nullstr’ assumed to have one element
  143 | MSG  nullstr;
      |      ^~~~~~~
defs.h:144:6: warning: array ‘sptbnl’ assumed to have one element
  144 | MSG  sptbnl;
      |      ^~~~~~
defs.h:145:6: warning: array ‘unexpected’ assumed to have one element
  145 | MSG  unexpected;
      |      ^~~~~~~~~~
defs.h:146:6: warning: array ‘endoffile’ assumed to have one element
  146 | MSG  endoffile;
      |      ^~~~~~~~~
defs.h:147:6: warning: array ‘synmsg’ assumed to have one element
  147 | MSG  synmsg;
      |      ^~~~~~
defs.h:158:6: warning: array ‘stdprompt’ assumed to have one element
  158 | MSG  stdprompt;
      |      ^~~~~~~~~
defs.h:159:6: warning: array ‘supprompt’ assumed to have one element
  159 | MSG  supprompt;
      |      ^~~~~~~~~
defs.h:160:6: warning: array ‘profile’ assumed to have one element
  160 | MSG  profile;
      |      ^~~~~~~
defs.h:172:6: warning: array ‘flagadr’ assumed to have one element
  172 | MSG  flagadr;
      |      ^~~~~~~
defs.h:179:6: warning: array ‘defpath’ assumed to have one element
  179 | MSG  defpath;
      |      ^~~~~~~
defs.h:182:6: warning: array ‘mailname’ assumed to have one element
  182 | MSG  mailname;
      |      ^~~~~~~~
defs.h:183:6: warning: array ‘homename’ assumed to have one element
  183 | MSG  homename;
      |      ^~~~~~~~
defs.h:184:6: warning: array ‘pathname’ assumed to have one element
  184 | MSG  pathname;
      |      ^~~~~~~~
defs.h:185:6: warning: array ‘fngname’ assumed to have one element
  185 | MSG  fngname;
      |      ^~~~~~~
defs.h:186:6: warning: array ‘ifsname’ assumed to have one element
  186 | MSG  ifsname;
      |      ^~~~~~~
defs.h:187:6: warning: array ‘ps1name’ assumed to have one element
  187 | MSG  ps1name;
      |      ^~~~~~~
defs.h:188:6: warning: array ‘ps2name’ assumed to have one element
  188 | MSG  ps2name;
      |      ^~~~~~~
defs.h:191:7: warning: array ‘tmpout’ assumed to have one element
  191 | CHAR  tmpout[];
      |       ^~~~~~
defs.h:200:6: warning: array ‘devnull’ assumed to have one element
  200 | MSG  devnull;
      |      ^~~~~~~
In file included from sh.c:10:
defs.h:242:9: warning: array ‘trapcom’ assumed to have one element
  242 | STRING  trapcom[];
      |         ^~~~~~~
defs.h:243:7: warning: array ‘trapflg’ assumed to have one element
  243 | BOOL  trapflg[];
      |       ^~~~~~~
defs.h:247:7: warning: array ‘numbuf’ assumed to have one element
  247 | CHAR  numbuf[];
      |       ^~~~~~
defs.h:248:6: warning: array ‘export’ assumed to have one element
  248 | MSG  export;
      |      ^~~~~~
defs.h:249:6: warning: array ‘readonly’ assumed to have one element
  249 | MSG  readonly;
      |      ^~~~~~~~
defs.h:258:6: warning: array ‘mailmsg’ assumed to have one element
  258 | MSG  mailmsg;
      |      ^~~~~~~
defs.h:259:6: warning: array ‘coredump’ assumed to have one element
  259 | MSG  coredump;
      |      ^~~~~~~~
defs.h:260:6: warning: array ‘badopt’ assumed to have one element
  260 | MSG  badopt;
      |      ^~~~~~
defs.h:261:6: warning: array ‘badparam’ assumed to have one element
  261 | MSG  badparam;
      |      ^~~~~~~~
defs.h:262:6: warning: array ‘badsub’ assumed to have one element
  262 | MSG  badsub;
      |      ^~~~~~
defs.h:263:6: warning: array ‘nospace’ assumed to have one element
  263 | MSG  nospace;
      |      ^~~~~~~
defs.h:281:6: warning: array ‘notfound’ assumed to have one element
  281 | MSG  notfound;
      |      ^~~~~~~~
defs.h:265:6: warning: array ‘badtrap’ assumed to have one element
  265 | MSG  badtrap;
      |      ^~~~~~~
defs.h:266:6: warning: array ‘baddir’ assumed to have one element
  266 | MSG  baddir;
      |      ^~~~~~
defs.h:267:6: warning: array ‘badshift’ assumed to have one element
  267 | MSG  badshift;
      |      ^~~~~~~~
defs.h:268:6: warning: array ‘illegal’ assumed to have one element
  268 | MSG  illegal;
      |      ^~~~~~~
defs.h:269:6: warning: array ‘restricted’ assumed to have one element
  269 | MSG  restricted;
      |      ^~~~~~~~~~
defs.h:270:6: warning: array ‘execpmsg’ assumed to have one element
  270 | MSG  execpmsg;
      |      ^~~~~~~~
defs.h:271:6: warning: array ‘notid’ assumed to have one element
  271 | MSG  notid;
      |      ^~~~~
defs.h:272:6: warning: array ‘wtfailed’ assumed to have one element
  272 | MSG  wtfailed;
      |      ^~~~~~~~
defs.h:273:6: warning: array ‘badcreate’ assumed to have one element
  273 | MSG  badcreate;
      |      ^~~~~~~~~
defs.h:274:6: warning: array ‘piperr’ assumed to have one element
  274 | MSG  piperr;
      |      ^~~~~~
defs.h:275:6: warning: array ‘badopen’ assumed to have one element
  275 | MSG  badopen;
      |      ^~~~~~~
defs.h:276:6: warning: array ‘badnum’ assumed to have one element
  276 | MSG  badnum;
      |      ^~~~~~
defs.h:277:6: warning: array ‘arglist’ assumed to have one element
  277 | MSG  arglist;
      |      ^~~~~~~
defs.h:278:6: warning: array ‘txtbsy’ assumed to have one element
  278 | MSG  txtbsy;
      |      ^~~~~~
defs.h:279:6: warning: array ‘toobig’ assumed to have one element
  279 | MSG  toobig;
      |      ^~~~~~
defs.h:280:6: warning: array ‘badexec’ assumed to have one element
  280 | MSG  badexec;
      |      ^~~~~~~
defs.h:282:6: warning: array ‘badfile’ assumed to have one element
  282 | MSG  badfile;
      |      ^~~~~~~
defs.h:284:9: warning: array ‘end’ assumed to have one element
  284 | address end[];
      |         ^~~
In file included from defs.h:286,
                 from sh.c:10:
ctype.h:69:6: warning: array ‘_ctype1’ assumed to have one element
   69 | char _ctype1[];
      |      ^~~~~~~
ctype.h:80:6: warning: array ‘_ctype2’ assumed to have one element
   80 | char _ctype2[];
      |      ^~~~~~~