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dnl This Source Code Form is subject to the terms of the Mozilla Public
dnl License, v. 2.0. If a copy of the MPL was not distributed with this
dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
dnl Check for the existence of various allocation headers/functions
AC_DEFUN([MOZ_CHECK_ALLOCATOR],[
MALLOC_HEADERS="malloc.h malloc_np.h malloc/malloc.h sys/malloc.h"
MALLOC_H=
for file in $MALLOC_HEADERS; do
MOZ_CHECK_HEADER($file, [MALLOC_H=$file])
if test "$MALLOC_H" != ""; then
AC_DEFINE_UNQUOTED(MALLOC_H, <$MALLOC_H>)
break
fi
done
AC_CHECK_FUNCS(strndup posix_memalign memalign)
AC_CHECK_FUNCS(malloc_usable_size)
MALLOC_USABLE_SIZE_CONST_PTR=const
if test -n "$HAVE_MALLOC_H"; then
AC_MSG_CHECKING([whether malloc_usable_size definition can use const argument])
AC_TRY_COMPILE([#include <malloc.h>
#include <stddef.h>
size_t malloc_usable_size(const void *ptr);],
[return malloc_usable_size(0);],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
MALLOC_USABLE_SIZE_CONST_PTR=)
fi
AC_DEFINE_UNQUOTED([MALLOC_USABLE_SIZE_CONST_PTR],[$MALLOC_USABLE_SIZE_CONST_PTR])
dnl In newer bionic headers, valloc is built but not defined,
dnl so we check more carefully here.
AC_MSG_CHECKING([for valloc in malloc.h])
AC_EGREP_HEADER(valloc, malloc.h,
AC_DEFINE(HAVE_VALLOC)
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
AC_MSG_CHECKING([for valloc in unistd.h])
AC_EGREP_HEADER(valloc, unistd.h,
AC_DEFINE(HAVE_VALLOC)
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
AC_MSG_CHECKING([for _aligned_malloc in malloc.h])
AC_EGREP_HEADER(_aligned_malloc, malloc.h,
AC_DEFINE(HAVE_ALIGNED_MALLOC)
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
])
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