diff --git a/ChangeLog b/ChangeLog
index ed54b51..fa476eb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,10 +5,6 @@ Changes in version 1.14.2
   Execute 'notify.disable_colors()' when 'colorize' is set to '0' (disabled)
   to ignore color redefinitions made by user.
 
-+ improvement
-  * plugins/* - Davide Madrisan:
-  Do not load a library already loaded by another autospec module.
-
 + update
   * autospec - Davide Madrisan:
   Send the debug message showing autospec version as soon as possible.
diff --git a/lib/libapse.lib.in b/lib/libapse.lib.in
index 1806b52..f611294 100644
--- a/lib/libapse.lib.in
+++ b/lib/libapse.lib.in
@@ -3,9 +3,6 @@
 # Copyright (C) 2007,2012 Stefano Cotta Ramusino <stefano.cotta@openmamba.org>
 # Copyright (C) 2008-2011 Silvan Calarco <silvan.calarco@mambasoft.it>
 
-[ "$libapse_is_loaded" = 1 ] || {
-libapse_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 2 ] &&
    echo $"this script requires bash version 2 or better" >&2 && exit 1
 
@@ -593,5 +590,3 @@ a newer version of \`${NOTE}$specname${NORM}' is already installed"
 
    return $retval
 }
-
-} # endif $libapse_is_loaded
diff --git a/lib/libcfg.lib.in b/lib/libcfg.lib.in
index e7aa657..c19662d 100644
--- a/lib/libcfg.lib.in
+++ b/lib/libcfg.lib.in
@@ -2,9 +2,6 @@
 # libcfg.lib -- @package@ library for loading the configuration file(s)
 # Copyright (C) 2008,2011,2012 Davide Madrisan <davide.madrisan@gmail.com>
 
-[ "$libcfg_is_loaded" = 1 ] || {
-libcfg_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 2 ] &&
    echo $"this script requires bash version 2 or better" >&2 && exit 1
 
@@ -116,5 +113,3 @@ done
 [ "$cfg_files_num" = 0 ] && notify.error $"configuration file not found"
 
 unset cfg_file
-
-} # endif $libcfg_is_loaded
diff --git a/lib/libmsgmng.lib.in b/lib/libmsgmng.lib.in
index 623f723..1b6b0fe 100644
--- a/lib/libmsgmng.lib.in
+++ b/lib/libmsgmng.lib.in
@@ -2,9 +2,6 @@
 # libmsgmng.lib -- @package@ library to manage debug/warning/error messages
 # Copyright (C) 2005,2006,2008,2012 Davide Madrisan <davide.madrisan@gmail.com>
 
-[ "$libmsgmng_is_loaded" = 1 ] || {
-libmsgmng_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 2 ] &&
    echo $"this script requires bash version 2 or better" >&2 && exit 1
 
@@ -73,5 +70,3 @@ $"unknown color theme \`$colorize_theme': colors will be disabled"
 function notify.disable_colors() {
    ESC= CRIT= NOTE= WARN= EXIT= NORM=
 }
-
-} # endif $libmsgmng_is_loaded
diff --git a/lib/libnetwork.lib.in b/lib/libnetwork.lib.in
index c5983b1..eddb093 100644
--- a/lib/libnetwork.lib.in
+++ b/lib/libnetwork.lib.in
@@ -2,9 +2,6 @@
 # libnetwork.lib -- @package@ library to get info from internet repositories
 # Copyright (C) 2008,2010,2012 Davide Madrisan <davide.madrisan@gmail.com>
 
-[ "$libnetwork_is_loaded" = 1 ] || {
-libnetwork_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 3 ] &&
  { echo $"this script requires bash version 3 or better" >&2 && exit 1; }
 
@@ -1065,5 +1062,3 @@ an error occurred while creating"": ${pck_tarball}.tar.bz2"
 
    return 0
 }
-
-} # endif $libnetwork_is_loaded
diff --git a/lib/libspec.lib.in b/lib/libspec.lib.in
index 8bd31a9..365bd42 100644
--- a/lib/libspec.lib.in
+++ b/lib/libspec.lib.in
@@ -2,9 +2,6 @@
 # libspec.lib -- @package@ library to manage rpm specfiles
 # Copyright (C) 2004-2010,2012 Davide Madrisan <davide.madrisan@gmail.com>
 
-[ "$libspec_is_loaded" = 1 ] || {
-libspec_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 2 ] &&
    echo $"this script requires bash version 2 or better" >&2 && exit 1
 
@@ -1247,5 +1244,3 @@ function getversionfromtarball() {
    notify.debug "$FUNCNAME: pck_version = \"$pck_version\""
    echo "$pck_version"
 }
-
-} # endif $libspec_is_loaded
diff --git a/lib/libtest.lib.in b/lib/libtest.lib.in
index 13e2cb0..befaeec 100644
--- a/lib/libtest.lib.in
+++ b/lib/libtest.lib.in
@@ -2,9 +2,6 @@
 # libtest.lib -- @package@ library used by the test framework
 # Copyright (C) 2012 Davide Madrisan <davide.madrisan@gmail.com>
 
-[ "$libtest_is_loaded" = 1 ] || {
-libtest_is_loaded=1
-
 [ -z "$BASH" ] || [ ${BASH_VERSION:0:1} -lt 3 ] &&
  { echo $"this script requires bash version 3 or better" >&2 && exit 1; }
 
@@ -173,5 +170,3 @@ function test.runall() {
                --tmpdir "$tmpextractdir"
    done
 }
-
-} # endif $libtest_is_loaded