When configuring alsa-utils, it will use the hosts <ncurses.h> See: alsa-utils <VERSION> / alsamixer/.deps/alsamicer.Po This will, on OpenSuSE 11.0, and possibly other distributions result in that the preprocessor directive: #define acs_map _nc_acs_map which is present in the Buildroot build of ncurses, is not executed, and the extern <chartype> acs_map[]; declaration in the host ncurses will result in an undefined symbol: acs_map. This patches give up trying to force alsa-utils to use the correct ncurses, and just defines a byte with the needed symbol. diff -urN alsa-utils-1.0.18-0rig//alsamixer/alsamixer.c alsa-utils-1.0.18/alsamixer/alsamixer.c --- alsa-utils-1.0.18-0rig//alsamixer/alsamixer.c 2008-10-29 13:42:11.000000000 +0100 +++ alsa-utils-1.0.18/alsamixer/alsamixer.c 2009-01-22 23:35:29.000000000 +0100 @@ -115,6 +115,10 @@ #include <sys/time.h> #include <locale.h> +/* Ugly hack to get rid of undefined "acs_map" */ +/* This is caused by configure using host ncurses.h */ +/* instead of buildroot's ncurses.h */ +unsigned long acs_map[1]; #ifndef CURSESINC #include <ncurses.h>