echo $ngx_n "checking for $ngx_inc ..." $ngx_c
echo >> $NGX_ERR
echo "checking for $ngx_inc" >> $NGX_ERR

ngx_found=no

inc=`echo $ngx_inc | sed -e 's/\./_/' | sed -e 's/\//_/' | tr '[a-z]' '[A-Z]'`

cat << END > $NGX_AUTOTEST.c

#include <$ngx_inc>

int main() {
    return 0;
}

END

eval "${CC} -o $NGX_AUTOTEST $NGX_AUTOTEST.c >> $NGX_ERR 2>&1"

if [ -x $NGX_AUTOTEST ]; then
    echo " found"
    have=HAVE_$inc . auto/have
    eval "NGX_$inc='#include <$ngx_inc>'"
    ngx_found=yes

else
    echo " not found"
fi

rm $NGX_AUTOTEST*