From 48b5b720d1b153859ac6a9f4d1b53b85cd562dc4 Mon Sep 17 00:00:00 2001
From: Dirk Zimoch <dirk.zimoch@psi.ch>
Date: Thu, 4 Nov 2021 14:49:08 +0100
Subject: [PATCH] bugfix: Need to check if module version supports our current
 EPICS release

---
 require.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/require.c b/require.c
index b4cb095..f4b6ad5 100644
--- a/require.c
+++ b/require.c
@@ -1457,15 +1457,20 @@ static int require_priv(const char* module, const char* version, const char* arg
                         case EXACT: /* exact match found */
                         case MATCH: /* all given numbers match. */
                         {
+                            someArchFound = 1;
+
                             /* filename = "<dirname>/[dirlen]<module>/[modulediroffs]" */
                             /* Add our EPICS version */
-                            snprintf(filename+modulediroffs, sizeof(filename)-modulediroffs, "%s/R%s/%n",
-                                currentFilename, epicsRelease, &releasediroffs);
+                            if (!TRY_FILE(modulediroffs, "%s/R%s/%n", currentFilename, epicsRelease, &releasediroffs))
+                            {
+                                if (requireDebug)
+                                    printf("require: %s %s not available for R%s\n",
+                                        module, currentFilename, epicsRelease);
+                                continue;
+                            }
                             releasediroffs += modulediroffs;
                             /* filename = "<dirname>/[dirlen]<module>/[modulediroffs]<version>/R<epicsRelease>/[releasediroffs]" */
 
-                            someArchFound = 1;
-
                             if (requireDebug)
                                 printf("require: %s %s may match %s\n",
                                     module, currentFilename, version);