blob: 53dc358416a1ee15aaef4178a892ab450aac39ee (
plain)
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
42
43
44
45
46
47
48
49
50
51
52
|
dnl Decide whether or not to use the persistent memory allocator
# Copyright (C) 2022 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
AC_DEFUN([GAWK_USE_PERSISTENT_MALLOC],
[
AC_CHECK_SIZEOF([void *])
use_persistent_malloc=no
if test "$SKIP_PERSIST_MALLOC" = no && test $ac_cv_sizeof_void_p -eq 8
then
AC_CHECK_FUNC([mmap])
AC_CHECK_FUNC([munmap])
if test $ac_cv_func_mmap = yes && test $ac_cv_func_munmap = yes
then
AC_DEFINE(USE_PERSISTENT_MALLOC, 1, [Define to 1 if we can use the pma allocator])
use_persistent_malloc=yes
case $host_os in
linux-*)
case $CC in
gcc | clang)
LDFLAGS="${LDFLAGS} -no-pie"
export LDFLAGS
;;
*)
# tinycc and pcc don't support -no-pie flag
# their executables are non-PIE automatically
# so no need to do anything
;;
esac
;;
*darwin*)
LDFLAGS="${LDFLAGS} -Xlinker -no_pie"
export LDFLAGS
;;
*cygwin* | *CYGWIN*)
true # nothing do, Cygwin exes are not PIE
;;
# Other OS's go here...
*)
# For now, play it safe
use_persistent_malloc=no
;;
esac
else
use_persistent_malloc=no
fi
fi
AM_CONDITIONAL([USE_PERSISTENT_MALLOC], [test "$use_persistent_malloc" = "yes"])
])
|
