=== modified file 'i8kmon'
--- i8kmon	2013-11-23 19:41:17 +0000
+++ i8kmon	2013-11-23 20:30:47 +0000
@@ -27,6 +27,7 @@
     sysconfig	/etc/i8kmon.conf
     userconfig	~/.i8kmon
     i8kfan	/usr/bin/i8kfan
+    acpi    "acpi"
     geometry	{}
     use_conf    1
     auto	1
@@ -202,22 +202,15 @@
 
     set status(acpi_timer) [expr 60 / $config(timeout)]
 
-    set cmd "acpi -a"; set acpi_ac [eval exec $cmd]
-    set cmd2 "acpitool -a"; set acpi_ac2 [eval exec $cmd2]
-    set ret [string first "on-line" $acpi_ac]
-	set ret2 [string first "online" $acpi_ac2]
-    if {$ret >= 0 | $ret2 >= 0} {
+    set acpi_ac [exec {*}$config(acpi)]
+    if {[string match *on-line* $acpi_ac] || [string match *online* $acpi_ac]} {
         set status(ac) 1
     } else {
         set status(ac) 0
     }
 
     if {$config(verbose) > 0} {
-        if {$ret >= 0} {
-            puts "[clock seconds] acpi: $acpi_ac"
-        } elseif {$ret2 >= 0} {
-            puts "[clock seconds] acpi: $acpi_ac2"
-        }
+        puts "[clock seconds] acpi: $acpi_ac"
     }
 
     return 0
@@ -495,8 +487,8 @@
     -a|--auto               control automatically the fans
    -na|--noauto	            don\x27t control automatically the fans
     -d|--daemon             run in daemon mode without user interface
-   -nd|--nodaemon           don\x27 run as daemon, open the user interface
-   -nc|--nouserconfig       don't use \$HOME/.i8kmon
+   -nd|--nodaemon           don\x27t run as daemon, open the user interface
+   -nc|--nouserconfig       don\x27t use \$HOME/.i8kmon
     -v|--verbose            report status on stdout
     -g|--geometry <geom>    set applet geometry
     -t|--timeout <secs>     set poll timeout
@@ -556,7 +548,7 @@
     }
 
     if {$config(verbose) > 0} {
-	set copyright "Copyright (C) 2013 i8kutils <https://launchpad.net/i8kutils>"
+	set copyright "Copyright (C) 2013 Vitor Augusto <vitorafsr@gmail.com>"
 	puts "i8kmon $PROG_VERSION - $copyright"
 	parray config
 	parray status
@@ -596,8 +588,25 @@
     set status(rightspeed) "0 $rspeed1 $rspeed2 $rspeed3"
 }
 
+# probe external tools
+proc probe_tools {} {
+
+    # The possibility of choosing 'acpi' or 'acpitool' is for compatibility
+    # between different architectures: amd64, i386, kFreeBSD
+    # This code below is strictly related on package dependency stated at
+    # keyword 'Depends:' on file 'debian/control'
+    if {![catch {exec acpi}]} {
+        set config(acpi) "acpi"
+    } elseif {[catch {exec acpitool}]} {
+        set config(acpi) "acpitool"
+    } else {
+        puts stderr "Package dependency problem: neither 'acpi' nor 'acpitool' package is installed"
+    }
+}
+
 proc main {} {
     probe_fan_speed
+    probe_tools
     read_config
     parse_options
     make_ui