configure: Clean code for --enable-embedded

* Remove unneeded arguments for AC_ARG_ENABLE
* Use AS_HELP_STRING
* Use [] instead of () for default in help text

Signed-off-by: Stefan Weil <[email protected]>

Author: stweil

configure.ac

@@ -175,9 +175,7 @@ AM_CONDITIONAL([DISABLED_LEGACY_ENGINE], test "$enable_legacy" = "no")
 # check whether to build embedded version
 AC_MSG_CHECKING([--enable-embedded argument])
 AC_ARG_ENABLE([embedded],
-    [  --enable-embedded       enable embedded build (default=no)],
-    [enable_embedded=$enableval],
-    [enable_embedded="no"])
+    AS_HELP_STRING([--enable-embedded], [enable embedded build [default=no]]))
 AC_MSG_RESULT([$enable_embedded])
 AM_CONDITIONAL([EMBEDDED], [test "$enable_embedded" = "yes"])
 if test "$enable_embedded" = "yes"; then