[gimp] plug-ins: check that the installed RawTherapee is at least version 5.2

[Jehan Pagès <jehanp src gnome org>]

commit 38be044bbaa4e6fb9a3601eae59ee311ecf36e4c
Author: Alberto Griggio <alberto griggio gmail com>
Date:   Mon Jul 24 19:12:35 2017 +0200

    plug-ins: check that the installed RawTherapee is at least version 5.2

 plug-ins/file-rawtherapee/file-rawtherapee.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/plug-ins/file-rawtherapee/file-rawtherapee.c b/plug-ins/file-rawtherapee/file-rawtherapee.c
index 9df3f17..d78c30a 100644
--- a/plug-ins/file-rawtherapee/file-rawtherapee.c
+++ b/plug-ins/file-rawtherapee/file-rawtherapee.c
@@ -109,14 +109,13 @@ init (void)
                     NULL,
                     NULL))
     {
-      char *rtversion = NULL;
+      int rtmajor = 0, rtminor = 0;
 
       if (sscanf (rawtherapee_stdout,
-                  "RawTherapee, version %ms",
-                  &rtversion) == 1)
+                  "RawTherapee, version %d.%d",
+                  &rtmajor, &rtminor) == 2 && rtmajor >= 5 && rtminor >= 2)
         {
           have_rawtherapee = TRUE;
-          free (rtversion);
         }
 
       g_free (rawtherapee_stdout);