diff --git a/acinclude.m4 b/acinclude.m4
index 0f29685..198df7e 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -36,11 +36,9 @@ if test "$TARGET" = "native"; then
 	if test "$prefix" = "NONE"; then
 		prefix=/usr/local
 	fi
-	TARGET_PREFIX=$prefix
-	if test "$exec_prefix" = "NONE"; then
-		exec_prefix=$prefix
-	fi
 	targetprefix=$prefix
+	TARGET_PREFIX=$prefix
+	AC_DEFINE_UNQUOTED(TARGET_PREFIX, "$TARGET_PREFIX", [The targets prefix])
 elif test "$TARGET" = "cdk"; then
 	AC_MSG_RESULT(cdk)
 
@@ -65,6 +63,10 @@ else
 	AC_MSG_ERROR([invalid target $TARGET, choose on from native,cdk]);
 fi
 
+if test "$exec_prefix" = "NONE"; then
+	exec_prefix=$prefix
+fi
+
 AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 AC_SYS_LARGEFILE