+2021-05-12  Mike Frysinger  <vapier@gentoo.org>
+
+       * README-HACKING: Delete mention of SIM_AC_OPTION_ENVIRONMENT.
+
 2021-05-12  Luis Machado  <luis.machado@linaro.org>
 
        * d10v/interp.c (sim_create_inferior): Fix memset call.
 
 
 The simplest simulator doesn't include environment support -- it merely
 simulates the Instruction Set Architecture (ISA).  Once you're ready to move
-on to the next level, call the common macro in your configure.ac:
-SIM_AC_OPTION_ENVIRONMENT
+on to the next level, it's time to start handling the --env option.  It's
+enabled by default for all ports already.
 
 This will support for the user, virtual, and operating environments.  See the
 sim-config.h header for a more detailed description of them.  The former are
 
+2021-05-12  Mike Frysinger  <vapier@gentoo.org>
+
+       * configure.ac: Delete SIM_AC_OPTION_ENVIRONMENT call.
+       * configure: Regenerate.
+
 2021-05-04  Tom Tromey  <tromey@adacore.com>
 
        * mloop.in: Include <stdlib.h>.
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking default sim environment setting" >&5
-$as_echo_n "checking default sim environment setting... " >&6; }
-sim_environment="ALL_ENVIRONMENT"
-# Check whether --enable-sim-environment was given.
-if test "${enable_sim_environment+set}" = set; then :
-  enableval=$enable_sim_environment; case "${enableval}" in
-  all | ALL)             sim_environment="ALL_ENVIRONMENT";;
-  user | USER)           sim_environment="USER_ENVIRONMENT";;
-  virtual | VIRTUAL)     sim_environment="VIRTUAL_ENVIRONMENT";;
-  operating | OPERATING) sim_environment="OPERATING_ENVIRONMENT";;
-  *)   as_fn_error $? "Unknown value $enableval passed to --enable-sim-environment" "$LINENO" 5;;
-esac
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define WITH_ENVIRONMENT $sim_environment
-_ACEOF
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sim_environment" >&5
-$as_echo "$sim_environment" >&6; }
-
-
 cgen_maint=no
 cgen=guile
 cgendir='$(srcdir)/../../cgen'
 
 SIM_AC_OPTION_SCACHE(16384)
 SIM_AC_OPTION_DEFAULT_MODEL([or1200])
 SIM_AC_OPTION_WARNINGS(no)
-SIM_AC_OPTION_ENVIRONMENT
 SIM_AC_OPTION_CGEN_MAINT
 
 SIM_AC_OUTPUT
 
+2021-05-12  Mike Frysinger  <vapier@gentoo.org>
+
+       * configure.ac: Delete SIM_AC_OPTION_ENVIRONMENT call.
+       * configure: Regenerate.
+
 2021-05-04  Mike Frysinger  <vapier@gentoo.org>
 
        * configure: Regenerate.
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking default sim environment setting" >&5
-$as_echo_n "checking default sim environment setting... " >&6; }
-sim_environment="ALL_ENVIRONMENT"
-# Check whether --enable-sim-environment was given.
-if test "${enable_sim_environment+set}" = set; then :
-  enableval=$enable_sim_environment; case "${enableval}" in
-  all | ALL)             sim_environment="ALL_ENVIRONMENT";;
-  user | USER)           sim_environment="USER_ENVIRONMENT";;
-  virtual | VIRTUAL)     sim_environment="VIRTUAL_ENVIRONMENT";;
-  operating | OPERATING) sim_environment="OPERATING_ENVIRONMENT";;
-  *)   as_fn_error $? "Unknown value $enableval passed to --enable-sim-environment" "$LINENO" 5;;
-esac
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define WITH_ENVIRONMENT $sim_environment
-_ACEOF
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sim_environment" >&5
-$as_echo "$sim_environment" >&6; }
-
-
 # Check whether --enable-werror was given.
 if test "${enable_werror+set}" = set; then :
   enableval=$enable_werror; case "${enableval}" in
 
 
 SIM_AC_OPTION_ENDIAN(LITTLE)
 SIM_AC_OPTION_ALIGNMENT(NONSTRICT_ALIGNMENT)
-SIM_AC_OPTION_ENVIRONMENT
 SIM_AC_OPTION_WARNINGS
 
 # Select the default model for the target.