diff --git a/include/tr/math.h b/include/tr/math.h
index b1cf73d..8e65992 100644
--- a/include/tr/math.h
+++ b/include/tr/math.h
@@ -29,30 +29,8 @@
 
 #include "tr/commons.h"
 
-inline
-long
-TR_euklidGcd(register long val1, register long val2)
-{
-    register long mod;
-
-    if(val2 > val1) SWAP_XOR(val1, val2);
-
-    mod = val1 % val2;
-    while (mod != 0) {
-        val1 = val2;
-        val2 = mod;
-        mod = val1 % val2;
-    }
-
-    return val2;
-}
-
-inline
-long
-TR_lcm(register long val1, register long val2)
-{   
-    return val1 * val2 / TR_euklidGcd(val1, val2);
-}
+long TR_euklidGcd(register long, register long);
+long TR_lcm(register long, register long);
 
 #endif // __TR_MATH_H__
 
diff --git a/src/math.c b/src/math.c
index 58841ae..151e2db 100644
--- a/src/math.c
+++ b/src/math.c
@@ -26,5 +26,27 @@
 
 #include "tr/math.h"
 
-extern inline long TR_euklidGcd(register long, register long);
-extern inline long TR_lcm(register long, register long);
+long
+TR_euklidGcd(register long val1, register long val2)
+{
+    register long mod;
+
+    if(val2 > val1) SWAP_XOR(val1, val2);
+
+    mod = val1 % val2;
+    while (mod != 0) {
+        val1 = val2;
+        val2 = mod;
+        mod = val1 % val2;
+    }
+
+    return val2;
+}
+
+long
+TR_lcm(register long val1, register long val2)
+{   
+    return val1 * val2 / TR_euklidGcd(val1, val2);
+}
+
+// vim: set ts=4 sw=4: