neatrun/neatcc.c

   1 #include <stdlib.h>
   2 #include <unistd.h>
   3 #include <string.h>
   4
   5 #define MAXARGS 512
   6
   7 static void die(char *msg)
   8 {
   9         write(2, msg, strlen(msg));
  10         exit(1);
  11 }
  12
  13 int main(int argc, char *argv[], char *envp[])
  14 {
  15         char *targv[MAXARGS];
  16         int targc = 0;
  17         int cc = 0;
  18         int i;
  19         if (argc < 2)
  20                 die("neatcc: ncc/nld wrapper\n");
  21         for (i = 1; i < argc; i++)
  22                 if (argv[i][0] == '-' && argv[i][1] == 'c')
  23                         cc = 1;
  24         if (cc) {
  25                 targv[targc++] = NCC;
  26                 targv[targc++] = "-Dfloat=long";
  27                 targv[targc++] = "-Ddouble=long";
  28                 targv[targc++] = "-D__extension__=";
  29                 targv[targc++] = "-I" NLC;
  30                 for (i = 1; i < argc; i++)
  31                         targv[targc++] = argv[i];
  32         } else {
  33                 targv[targc++] = NLD;
  34                 for (i = 1; i < argc; i++)
  35                         targv[targc++] = argv[i];
  36                 targv[targc++] = NLC "/start.o";
  37                 targv[targc++] = NLC "/libc.a";
  38         }
  39         targv[targc] = NULL;
  40         execve(targv[0], targv, envp);
  41         die("neatcc: could not find ncc/nld\n");
  42         return 1;
  43 }