PR25548 followup

["Frank Ch. Eigler" <fche@redhat.com>]

Hi -

pushed as obvious:

Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Thu Mar 26 11:12:49 2020 -0400

    PR25548: CURLOPT_PATH_AS_IS backward compatibility
    
    libcurl < 7.42 lacks the CURLOPT_PATH_AS_IS flag, but extraneous
    client-side canonicalization is mostly harmless.
    
    Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
    Reported-by: Mark Wielaard <mark@klomp.org>

diff --git a/debuginfod/ChangeLog b/debuginfod/ChangeLog
index 7518e886031c..60d912a37c47 100644
--- a/debuginfod/ChangeLog
+++ b/debuginfod/ChangeLog
@@ -1,3 +1,8 @@
+2020-03-26  Frank Ch. Eigler  <fche@redhat.com>
+
+	* debuginfod-client.c (debuginfod_query_server): Don't
+	set CURLOPT_PATH_AS_IS on old curl.  Mostly harmless.
+
 2020-03-24  Frank Ch. Eigler  <fche@redhat.com>
 
 	* debuginfod-client.c (debuginfod_query_server): Set
diff --git a/debuginfod/debuginfod-client.c b/debuginfod/debuginfod-client.c
index 251047caf53f..f1b63160a5f2 100644
--- a/debuginfod/debuginfod-client.c
+++ b/debuginfod/debuginfod-client.c
@@ -716,7 +716,12 @@ debuginfod_query_server (debuginfod_client *c,
       curl_easy_setopt(data[i].handle, CURLOPT_FOLLOWLOCATION, (long) 1);
       curl_easy_setopt(data[i].handle, CURLOPT_FAILONERROR, (long) 1);
       curl_easy_setopt(data[i].handle, CURLOPT_NOSIGNAL, (long) 1);
+#if CURL_AT_LEAST_VERSION(7,42,0)
       curl_easy_setopt(data[i].handle, CURLOPT_PATH_AS_IS, (long) 1);
+#else
+      /* On old curl; no big deal, canonicalization here is almost the
+         same, except perhaps for ? # type decorations at the tail. */
+#endif
       curl_easy_setopt(data[i].handle, CURLOPT_AUTOREFERER, (long) 1);
       curl_easy_setopt(data[i].handle, CURLOPT_ACCEPT_ENCODING, "");
       add_extra_headers(data[i].handle);