38_CO20.pm: fixed Device::USB init errors

git-svn-id: https://svn.fhem.de/fhem/trunk@13544 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem/CHANGED

@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - bugfix:  38_CO20.pm: fixed Device::USB init errors
   - update: 93_DBLog: new Version 2.13.5, supports primary key now,
                       set commands clearReadings and eraseReadings,
                       non-blocking variants of count, reducelog and

fhem/FHEM/38_CO20.pm

@@ -8,6 +8,10 @@ package main;
 use strict;
 use warnings;
 
+$ENV{CFLAGS} = '';
+$ENV{CPPFLAGS} = '';
+$ENV{LDFLAGS} = '';
+
 use Device::USB;
 
 sub
@@ -653,6 +657,8 @@ CO20_Attr($$$)
 1;
 
 =pod
+=item device
+=item summary USB iAQ Stick
 =begin html
 
 <a name="CO20"></a>