# Copyright (C) 2024 Web Server LLC
# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


if check_cache "$ngx_feature" "feature"; then
    return
fi

echo $ngx_n "checking for $ngx_feature ...$ngx_c"

cat << END >> $NGX_AUTOCONF_ERR

----------------------------------------
checking for $ngx_feature

END

ngx_found=no
ngx_add_have=no
ngx_add_value=no

if test -n "$ngx_feature_name"; then
    name2macro "$ngx_feature_name"
    ngx_have_feature="$res"
fi

if test -n "$ngx_feature_path"; then
    for ngx_temp in $ngx_feature_path; do
        ngx_feature_inc_path="$ngx_feature_inc_path -I $ngx_temp"
    done
fi

cat << END > $NGX_AUTOTEST.c

#include <sys/types.h>
$NGX_INCLUDE_UNISTD_H
$ngx_feature_incs

int main(void) {
    $ngx_feature_test;
    return 0;
}

END


ngx_test="($CC -c $CC_TEST_FLAGS $CC_AUX_FLAGS $ngx_feature_inc_path \
           -o $NGX_AUTOTEST.o $NGX_AUTOTEST.c && \
           $CC $CC_TEST_FLAGS $CC_AUX_FLAGS \
           -o $NGX_AUTOTEST $NGX_AUTOTEST.o $NGX_TEST_LD_OPT $ngx_feature_libs)"

ngx_feature_inc_path=

eval "/bin/sh -c \"$ngx_test\" >> $NGX_AUTOCONF_ERR 2>&1"


if [ -x $NGX_AUTOTEST ]; then

    case "$ngx_feature_run" in

        yes)
            if runtest "feature" "$ngx_feature_name"; then
                echo " found"
                ngx_found=yes

                if test -n "$ngx_feature_name"; then
                    have=$ngx_have_feature . auto/have
                    ngx_add_have=yes
                fi

            else
                echo " found but is not working"
            fi
        ;;

        value)
            if runtest "feature" "$ngx_feature_name"; then
                echo " found"
                ngx_found=yes

                have="$ngx_feature_name" value="$ngx_rtval" . auto/define
                ngx_add_value=$value

            else
                echo " found but is not working"
            fi
        ;;

        bug)
            if runtest "feature" "$ngx_feature_name"; then
                echo " not found"

            else
                echo " found"
                ngx_found=yes

                if test -n "$ngx_feature_name"; then
                    have=$ngx_have_feature . auto/have
                    ngx_add_have=yes
                fi
            fi
        ;;

        *)
            echo " found"
            ngx_found=yes

            if test -n "$ngx_feature_name"; then
                have=$ngx_have_feature . auto/have
                ngx_add_have=yes
            fi
        ;;

    esac

else
    echo " not found"

    echo "----------"    >> $NGX_AUTOCONF_ERR
    cat $NGX_AUTOTEST.c  >> $NGX_AUTOCONF_ERR
    echo "----------"    >> $NGX_AUTOCONF_ERR
    echo $ngx_test       >> $NGX_AUTOCONF_ERR
    echo "----------"    >> $NGX_AUTOCONF_ERR
fi

rm -rf $NGX_AUTOTEST*

if [ $NGX_FEATURE_CACHE = NO ]; then
    return
fi

cache_output_start

echo "ngx_found=$ngx_found"

if [ $ngx_add_have = yes ]; then
    echo "have=$ngx_have_feature . auto/have"
fi

if [ $ngx_add_value != no ]; then
    echo "have=\"$ngx_feature_name\" value=\"$ngx_add_value\" . auto/define"
fi

cache_output_end