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- /* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the GNU C Library; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <errno.h>
-
- static char iferrno[] = "#ifdef _ERRNO_H";
- static char endiferrno[] = "#endif /* <errno.h> included. */";
- static char ifEmath[] = "#if !defined(__Emath_defined) && \
- (defined(_ERRNO_H) || defined(__need_Emath))";
- static char endifEmath[] = "#endif /* Emath not defined and <errno.h> \
- included or need Emath. */";
-
- static int biggest_value = 0;
- static int done_ENOSYS = 0;
- static int done_ERANGE = 0, done_EDOM = 0;
-
- static void
- DO(name, value)
- char *name;
- int value;
- {
- int is_ERANGE = !done_ERANGE && !strcmp(name, "ERANGE");
- int is_EDOM = !done_EDOM && !strcmp(name, "EDOM");
- int is_Emath = is_ERANGE || is_EDOM;
-
- if (is_Emath)
- {
- puts(endiferrno);
- puts(ifEmath);
- }
-
- if (!strcmp (name, "EWOULDBLOCK"))
- {
- puts ("#define EWOULDBLOCK EAGAIN /* Translated in glibc. */");
- name = "EWOULDBLOCK_sys /* Value actually returned by kernel. */";
- }
-
- printf ("#define %s %d\n", name, value);
-
- if (is_Emath)
- {
- puts(endifEmath);
- puts(iferrno);
- }
-
- if (value > biggest_value)
- biggest_value = value;
-
- if (is_ERANGE)
- done_ERANGE = 1;
- else if (is_EDOM)
- done_EDOM = 1;
- else if (!done_ENOSYS && !strcmp(name, "ENOSYS"))
- done_ENOSYS = 1;
- }
-
- int
- main()
- {
- puts(iferrno);
-
- ERRNOS;
-
- if (!done_EDOM || !done_ERANGE)
- {
- puts(endiferrno);
- puts(ifEmath);
- if (!done_EDOM)
- printf("#define EDOM %d\n", ++biggest_value);
- if (!done_ERANGE)
- printf("#define ERANGE %d\n", ++biggest_value);
- puts(endifEmath);
- }
-
- if (!done_ENOSYS)
- printf("#define ENOSYS %d\n", ++biggest_value);
-
- puts(endiferrno);
-
- puts("#undef __need_Emath");
- puts("#ifndef __Emath_defined\n#define __Emath_defined 1\n#endif");
-
- exit(0);
- }
-