view auto/types/uintptr_t @ 4690:d91f3c78603e

Changed default alignment to 16. This fixes alignment problems observerd on ARMs, and likely also needed for MIPSes. Unless we know alignment is not required just assume we need 16, which appears to be safe default for all architectures. See here for details: http://mailman.nginx.org/pipermail/nginx/2012-June/034139.html
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 18 Jun 2012 14:09:54 +0000
parents 62d8db8c7157
children 434548349838
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


echo $ngx_n "checking for uintptr_t ...$ngx_c"
echo >> $NGX_AUTOCONF_ERR
echo "checking for uintptr_t" >> $NGX_AUTOCONF_ERR

found=no

cat << END > $NGX_AUTOTEST.c

#include <sys/types.h>
$NGX_INTTYPES_H

int main() {
    uintptr_t i = 0;
    return (int) i;
}

END

ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \
          -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT"

eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1"

if [ -x $NGX_AUTOTEST ]; then
    echo " uintptr_t found"
    found=yes
else
    echo $ngx_n " uintptr_t not found" $ngx_c
fi

rm $NGX_AUTOTEST*


if [ $found = no ]; then
    found="uint`expr 8 \* $ngx_ptr_size`_t"
    echo ", $found used"

    echo "typedef $found  uintptr_t;"                   >> $NGX_AUTO_CONFIG_H
    echo "typedef $found  intptr_t;" | sed -e 's/u//g'  >> $NGX_AUTO_CONFIG_H
fi