File: malloc.m4

package info (click to toggle)
shishi 1.0.0-1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 22,144 kB
  • ctags: 7,865
  • sloc: ansic: 61,153; sh: 12,212; yacc: 1,219; makefile: 1,164; perl: 624; sed: 16
file content (41 lines) | stat: -rw-r--r-- 1,483 bytes parent folder | download | duplicates (56)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
# malloc.m4 serial 9
dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

# gl_FUNC_MALLOC_POSIX
# --------------------
# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it
# fails), and replace malloc if it is not.
AC_DEFUN([gl_FUNC_MALLOC_POSIX],
[
  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
  if test $gl_cv_func_malloc_posix = yes; then
    HAVE_MALLOC_POSIX=1
    AC_DEFINE([HAVE_MALLOC_POSIX], [1],
      [Define if the 'malloc' function is POSIX compliant.])
  else
    AC_LIBOBJ([malloc])
    HAVE_MALLOC_POSIX=0
  fi
  AC_SUBST([HAVE_MALLOC_POSIX])
])

# Test whether malloc, realloc, calloc are POSIX compliant,
# Set gl_cv_func_malloc_posix to yes or no accordingly.
AC_DEFUN([gl_CHECK_MALLOC_POSIX],
[
  AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant],
    [gl_cv_func_malloc_posix],
    [
      dnl It is too dangerous to try to allocate a large amount of memory:
      dnl some systems go to their knees when you do that. So assume that
      dnl all Unix implementations of the function are POSIX compliant.
      AC_TRY_COMPILE([],
        [#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
         choke me
         #endif
        ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
    ])
])