buildid-warning.patch

diff --git a/NEWS b/NEWS
index c927c0f69..180a680b9 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,8 @@
 
 * What's new in version 4.2, 2019-11-18
 
+- The "Build-id mismatch" error now becomes a warning.
+
 - The process(EXE).begin probe handlers are now always triggered for
   already-running target processes.
 
diff --git a/man/cs/warning::buildid.7stap b/man/cs/warning::buildid.7stap
index a2a1e2cc0..43604680b 100644
--- a/man/cs/warning::buildid.7stap
+++ b/man/cs/warning::buildid.7stap
@@ -1,7 +1,7 @@
 .\" t
-.TH ERROR::BUILDID 7stap 
+.TH WARNING::BUILDID 7stap
 .SH NAME
-error::buildid \- chyby ověření build-id
+warning::buildid \- chyby ověření build-id
 
 .\" macros
 .de SAMPLE
diff --git a/man/warning::buildid.7stap b/man/warning::buildid.7stap
index 861769823..3f8a338e8 100644
--- a/man/warning::buildid.7stap
+++ b/man/warning::buildid.7stap
@@ -1,7 +1,7 @@
 .\" t
-.TH ERROR::BUILDID 7stap 
+.TH WARNING::BUILDID 7stap
 .SH NAME
-error::buildid \- build-id verification failures
+warning::buildid \- build-id verification failures
 
 .\" macros
 .de SAMPLE
@@ -50,7 +50,7 @@ man page.
 During translation, systemtap saves a copy of the relevant files'
 build-ids within the compiled modules.  At run-time, the modules
 compare the saved ones to the actual run-time build-ids in memory.
-The error message indicates that they did not match, so the module
+The warning message indicates that they did not match, so the module
 will decline placing a probe that was computed based upon obsolete
 data.  This is important for safety, as placing them at an
 inappropriate address could crash the programs.  However, this is not
@@ -73,7 +73,7 @@ files may not exactly match the main binaries.
 
 .PP
 
-To disable build-id verification errors, if one is confident that they
+To disable build-id verification warnings, if one is confident that they
 are an artefact of build accidents rather than a real mismatch, one
 might try the
 .IR -DSTP_NO_BUILDID_CHECK
diff --git a/runtime/sym.c b/runtime/sym.c
index a22802e58..237644082 100644
--- a/runtime/sym.c
+++ b/runtime/sym.c
@@ -709,8 +709,9 @@ static int _stp_build_id_check (struct _stp_module *m,
 
   // have two strings, will travel
   if (strcmp (hexstring_practice, hexstring_theory)) {
-          _stp_error ("Build-id mismatch [man error::buildid]: \"%s\" address %#lx, expected %s actual %s\n",
-                      m->path, notes_addr, hexstring_theory, hexstring_practice);
+          _stp_warn ("Build-id mismatch [man warning::buildid]: \"%s\" address "
+		     "%#lx, expected %s actual %s\n",
+                     m->path, notes_addr, hexstring_theory, hexstring_practice);
       return 1;
   }