diff --git a/cfg/avr.cfg b/cfg/avr.cfg
new file mode 100644
index 000000000..2a3ddcaad
--- /dev/null
+++ b/cfg/avr.cfg
@@ -0,0 +1,37 @@
+<?xml version="1.0"?>
+<!-- Based on http://www.nongnu.org/avr-libc/user-manual/group__avr__stdint.html -->
+<def>
+  <!-- Exact-width integer types -->
+  <podtype name="int8_t" sign="s" size="1"/>
+  <podtype name="uint8_t" sign="u" size="1"/>
+  <podtype name="int16_t" sign="s" size="2"/>
+  <podtype name="uint16_t" sign="u" size="2"/>
+  <podtype name="int32_t" sign="s" size="4"/>
+  <podtype name="uint32_t" sign="u" size="4"/>
+  <podtype name="int64_t" sign="s" size="8"/>
+  <podtype name="uint64_t" sign="u" size="8"/>
+  <!-- Integer types capable of holding object pointers -->
+  <podtype name="intptr_t" sign="s" size="2"/>
+  <podtype name="uintptr_t" sign="u" size="2"/>
+  <!-- Minimum-width integer types -->
+  <podtype name="int_least8_t" sign="s" size="1"/>  
+  <podtype name="uint_least8_t" sign="u" size="1"/>
+  <podtype name="int_least16_t" sign="s" size="2"/>
+  <podtype name="uint_least16_t" sign="u" size="2"/>
+  <podtype name="int_least32_t" sign="s" size="4"/>
+  <podtype name="uint_least32_t" sign="u" size="4"/>
+  <podtype name="int_least64_t" sign="s" size="8"/>
+  <podtype name="uint_least64_t" sign="u" size="8"/>
+  <!-- Fastest minimum-width integer types -->
+  <podtype name="int_fast8_t" sign="s" size="1"/>
+  <podtype name="uint_fast8_t" sign="u" size="1"/>    
+  <podtype name="int_fast16_t" sign="s" size="2"/> 
+  <podtype name="uint_fast16_t" sign="u" size="2"/> 
+  <podtype name="int_fast32_t" sign="s" size="4"/> 
+  <podtype name="uint_fast32_t" sign="u" size="4"/>
+  <podtype name="int_fast64_t" sign="s" size="8"/>
+  <podtype name="uint_fast64_t" sign="u" size="8"/>
+  <!-- Greatest-width integer types -->
+  <podtype name="intmax_t" sign="s" size="8"/>
+  <podtype name="uintmax_t" sign="u" size="8"/>      
+</def>