# Copyright (C) NGINX, Inc.

if [ $NXT_OTEL = YES ]; then

    $echo "checking for OTEL requirements:"

    $echo -n "  - checking for rust compiler ... "
    if [ -z $(which rustc 2>/dev/null) ]; then
        $echo "not found"
        exit 1;
    fi
    $echo "found"

    $echo -n "  - checking for cargo ... "
    if [ -z $(which cargo 2>/dev/null) ]; then
        $echo "not found."
        exit 1;
    fi
    $echo "found"

    $echo -n "  - "

    nxt_feature="OpenSSL library"
    nxt_feature_run=yes
    nxt_feature_incs=
    nxt_feature_libs="-lssl -lcrypto"
    nxt_feature_test="#include <openssl/ssl.h>

                      int main(void) {
                          SSL_library_init();
                          return 0;
                      }"
    . auto/feature

    if [ ! $nxt_found = yes ]; then
        $echo
        $echo $0: error: OpenTelemetry support requires OpenSSL.
        $echo
        exit 1;
    fi

    NXT_OTEL_LIBS="-lssl -lcrypto"

    cat << END >> $NXT_AUTO_CONFIG_H

#ifndef NXT_HAVE_OTEL
#define NXT_HAVE_OTEL 1
#endif

END
fi