build: enable examples build by default

the previous method of forcing this to be enabled for dist builds caused
breaks when the original configure disabled examples, as the little-known
DISTCHECK_CONFIGURE_FLAGS variable would need to also be set to disable
examples even though the user would think they were disabled based on configure
output

Makefile.am

@@ -2,8 +2,7 @@ ACLOCAL_AMFLAGS = -I m4
 AM_MAKEFLAGS = --no-print-directory
 AM_DISTCHECK_CONFIGURE_FLAGS = \
 --with-tests=regular \
---with-systemdunitdir=. \
---enable-always-build-examples
+--with-systemdunitdir=.
 
 SUBDIRS = src data config doc
 

configure.ac

@@ -5226,7 +5226,7 @@ if test "x${want_tests}" = "xyes" -a "x${want_wayland}" = "xyes"; then
 fi
 
 AC_ARG_ENABLE([always-build-examples],
-   [AS_HELP_STRING([--enable-always-build-examples],[always build examples. @<:@default=disabled@:>@])],
+   [AS_HELP_STRING([--enable-always-build-examples],[always build examples. @<:@default=enabled@:>@])],
    [
     if test "x${enableval}" = "xyes" ; then
        want_always_build_examples="yes"
@@ -5234,7 +5234,7 @@ AC_ARG_ENABLE([always-build-examples],
        want_always_build_examples="no"
     fi
    ],
-   [want_always_build_examples="no"])
+   [want_always_build_examples="yes"])
 AM_CONDITIONAL([ALWAYS_BUILD_EXAMPLES], [test "${want_always_build_examples}" = "yes"])
 
 BARF_OK="xno"