Don't assume ncursesw headers are in ../usr/include/ncursesw/.. On a pure build/system without legacy ncurses that may not be true. Since we're using pkg-config let it provide the correct include path. Status: contacted one of the maintainers on sf.net (ticket submission closed to the public, no other way of contacting them). Signed-off-by: Gustavo Zacarias diff -Nura procps-ng-3.3.10.orig/configure.ac procps-ng-3.3.10/configure.ac --- procps-ng-3.3.10.orig/configure.ac 2015-04-07 19:21:55.729819952 -0300 +++ procps-ng-3.3.10/configure.ac 2015-04-07 19:32:09.511706653 -0300 @@ -138,7 +138,8 @@ ]) AM_CONDITIONAL(WITH_NCURSES, true) if test "$enable_watch8bit" = yes; then - PKG_CHECK_MODULES([NCURSESW], [ncursesw], [WATCH_NCURSES_LIBS="$NCURSESW_LIBS"], [ + PKG_CHECK_MODULES([NCURSESW], [ncursesw], [WATCH_NCURSES_LIBS="$NCURSESW_LIBS"] + [WATCH_NCURSES_CFLAGS="$NCURSESW_CFLAGS"], [ AC_CHECK_LIB([ncursesw], [addwstr], [WATCH_NCURSES_LIBS=-lncursesw], [AC_MSG_ERROR([Cannot find ncurses wide library ncursesw with --enable-watch8bit])]) ]) @@ -148,6 +149,7 @@ fi AC_SUBST([NCURSES_LIBS]) AC_SUBST([WATCH_NCURSES_LIBS]) +AC_SUBST([WATCH_NCURSES_CFLAGS]) AC_ARG_WITH([systemd], [AS_HELP_STRING([--with-systemd], [enable systemd support])], diff -Nura procps-ng-3.3.10.orig/Makefile.am procps-ng-3.3.10/Makefile.am --- procps-ng-3.3.10.orig/Makefile.am 2015-04-07 19:21:55.655817434 -0300 +++ procps-ng-3.3.10/Makefile.am 2015-04-07 19:32:54.516238136 -0300 @@ -83,6 +83,7 @@ slabtop_LDADD = @NCURSES_LIBS@ watch_SOURCES = watch.c $(top_srcdir)/lib/strutils.c $(top_srcdir)/lib/fileutils.c watch_LDADD = @WATCH_NCURSES_LIBS@ +watch_CFLAGS = @WATCH_NCURSES_CFLAGS@ endif if BUILD_SKILL diff -Nura procps-ng-3.3.10.orig/watch.c procps-ng-3.3.10/watch.c --- procps-ng-3.3.10.orig/watch.c 2015-04-07 19:21:55.707819203 -0300 +++ procps-ng-3.3.10/watch.c 2015-04-07 19:22:27.323895083 -0300 @@ -51,10 +51,8 @@ #ifdef WITH_WATCH8BIT # include # include -# include -#else -# include #endif /* WITH_WATCH8BIT */ +#include #ifdef FORCE_8BIT # undef isprint