--- giflib-5.1.2/configure.ac	2016-01-19 13:55:58.238147631 +0100
+++ giflib-5.1.2/configure.ac	2016-01-19 13:56:31.165397666 +0100
@@ -8,7 +8,7 @@
 
 dnl Note: config.h is not used in the current build
 dnl We leave this in place only to suppress an error message at autogen time
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_MACRO_DIR([m4])
 
 dnl Checks for programs.