if test -z "$PECL_VAR([LIBCURL_SSLLIB])"; then
AC_CACHE_CHECK([for $1 providing SSL in libcurl], PECL_CACHE_VAR([HAVE_LIBCURL_$1]), [
AC_TRY_RUN([
+ #include <strings.h>
#include <curl/curl.h>
int main(int argc, char *argv[]) {
curl_version_info_data *data = curl_version_info(CURLVERSION_NOW);