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-rw-r--r--config/size_max.m461
1 files changed, 0 insertions, 61 deletions
diff --git a/config/size_max.m4 b/config/size_max.m4
deleted file mode 100644
index 5762fc3..0000000
--- a/config/size_max.m4
+++ /dev/null
@@ -1,61 +0,0 @@
-# size_max.m4 serial 2
-dnl Copyright (C) 2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([gl_SIZE_MAX],
-[
- AC_CHECK_HEADERS(stdint.h)
- dnl First test whether the system already has SIZE_MAX.
- AC_MSG_CHECKING([for SIZE_MAX])
- result=
- AC_EGREP_CPP([Found it], [
-#include <limits.h>
-#if HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#ifdef SIZE_MAX
-Found it
-#endif
-], result=yes)
- if test -z "$result"; then
- dnl Define it ourselves. Here we assume that the type 'size_t' is not wider
- dnl than the type 'unsigned long'.
- dnl The _AC_COMPUTE_INT macro works up to LONG_MAX, since it uses 'expr',
- dnl which is guaranteed to work from LONG_MIN to LONG_MAX.
- _AC_COMPUTE_INT([~(size_t)0 / 10], res_hi,
- [#include <stddef.h>], result=?)
- _AC_COMPUTE_INT([~(size_t)0 % 10], res_lo,
- [#include <stddef.h>], result=?)
- _AC_COMPUTE_INT([sizeof (size_t) <= sizeof (unsigned int)], fits_in_uint,
- [#include <stddef.h>], result=?)
- if test "$fits_in_uint" = 1; then
- dnl Even though SIZE_MAX fits in an unsigned int, it must be of type
- dnl 'unsigned long' if the type 'size_t' is the same as 'unsigned long'.
- AC_TRY_COMPILE([#include <stddef.h>
- extern size_t foo;
- extern unsigned long foo;
- ], [], fits_in_uint=0)
- fi
- if test -z "$result"; then
- if test "$fits_in_uint" = 1; then
- result="$res_hi$res_lo"U
- else
- result="$res_hi$res_lo"UL
- fi
- else
- dnl Shouldn't happen, but who knows...
- result='~(size_t)0'
- fi
- fi
- AC_MSG_RESULT([$result])
- if test "$result" != yes; then
- AC_DEFINE_UNQUOTED([SIZE_MAX], [$result],
- [Define as the maximum value of type 'size_t', if the system doesn't define it.])
- fi
-])