--- libapreq2-2.13/configure.ac~	2010-11-25 20:11:28.000000000 +0100
+++ libapreq2-2.13/configure.ac	2013-05-05 19:34:55.905616507 +0200
@@ -27,7 +27,7 @@
 AM_MAINTAINER_MODE
 
 dnl Checks for header files.
-AM_CONFIG_HEADER(include/apreq_config.h)
+AC_CONFIG_HEADERS(include/apreq_config.h)
 dnl Checks for typedefs, structures, and compiler characteristics.
 dnl Checks for library functions.