mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-23 22:25:25 +00:00
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
# malloc.m4 serial 8
|
|
dnl Copyright (C) 2007 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])
|
|
])
|
|
])
|