--- a/libltdl/config/general.m4sh
+++ b/libltdl/config/general.m4sh
@@ -359,7 +359,7 @@ opt_warning=:
 # name if it has been set yet.
 func_echo ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }$*"
 }
 
 # func_verbose arg...
@@ -385,14 +385,14 @@ func_echo_all ()
 # Echo program name prefixed message to standard error.
 func_error ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
 }
 
 # func_warning arg...
 # Echo program name prefixed warning message to standard error.
 func_warning ()
 {
-    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+    $opt_warning && $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
 
     # bash bug again:
     :
--- a/libltdl/config/ltmain.sh
+++ b/libltdl/config/ltmain.sh
@@ -443,7 +443,7 @@ opt_warning=:
 # name if it has been set yet.
 func_echo ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }$*"
 }
 
 # func_verbose arg...
@@ -469,14 +469,14 @@ func_echo_all ()
 # Echo program name prefixed message to standard error.
 func_error ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
 }
 
 # func_warning arg...
 # Echo program name prefixed warning message to standard error.
 func_warning ()
 {
-    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+    $opt_warning && $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
 
     # bash bug again:
     :
--- a/libtoolize.in
+++ b/libtoolize.in
@@ -640,7 +640,7 @@ opt_warning=:
 # name if it has been set yet.
 func_echo ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }$*"
 }
 
 # func_verbose arg...
@@ -666,14 +666,14 @@ func_echo_all ()
 # Echo program name prefixed message to standard error.
 func_error ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
 }
 
 # func_warning arg...
 # Echo program name prefixed warning message to standard error.
 func_warning ()
 {
-    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+    $opt_warning && $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
 
     # bash bug again:
     :
--- a/tests/defs.in
+++ b/tests/defs.in
@@ -588,7 +588,7 @@ opt_warning=:
 # name if it has been set yet.
 func_echo ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }$*"
 }
 
 # func_verbose arg...
@@ -614,14 +614,14 @@ func_echo_all ()
 # Echo program name prefixed message to standard error.
 func_error ()
 {
-    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+    $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
 }
 
 # func_warning arg...
 # Echo program name prefixed warning message to standard error.
 func_warning ()
 {
-    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+    $opt_warning && $ECHO "libreCMC-$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
 
     # bash bug again:
     :
