add small shell script wrapping port from local sources

.gitignore

@@ -4,6 +4,7 @@
 /Doxyfile
 /setupenv.bash
 /autom4te.cache
+/port.sh
 
 doc/*.gz
 doc/*.mtree

configure

@@ -9123,6 +9123,8 @@ $as_echo "yes" >&6; }
 ac_config_files="$ac_config_files Doxyfile Makefile Mk/macports.autoconf.mk doc/Makefile doc/base.mtree doc/macosx.mtree doc/macports.conf doc/prefix.mtree doc/pubkeys.conf portmgr/dmg/postflight setupenv.bash src/Makefile src/cregistry/Makefile src/compat/Makefile src/darwintracelib1.0/Makefile src/machista1.0/Makefile src/macports1.0/Makefile src/macports1.0/macports_autoconf.tcl src/macports1.0/macports_test_autoconf.tcl src/mpcommon1.0/Makefile src/package1.0/Makefile src/package1.0/package_test_autoconf.tcl src/pextlib1.0/Makefile src/port/Makefile src/port1.0/Makefile src/port1.0/port_autoconf.tcl src/port1.0/port_test_autoconf.tcl src/programs/Makefile src/registry2.0/Makefile src/registry2.0/registry_autoconf.tcl tests/Makefile tests/test.tcl tests/test/library.tcl tests/test/trace/test.tcl vendor/Makefile"
 
 
+ac_config_files="$ac_config_files port.sh"
+
 ac_config_files="$ac_config_files vendor/tclsh"
 
 ac_config_files="$ac_config_files src/cxx_stdlib_overridden.tcl"
@@ -9863,6 +9865,7 @@ do
     "tests/test/library.tcl") CONFIG_FILES="$CONFIG_FILES tests/test/library.tcl" ;;
     "tests/test/trace/test.tcl") CONFIG_FILES="$CONFIG_FILES tests/test/trace/test.tcl" ;;
     "vendor/Makefile") CONFIG_FILES="$CONFIG_FILES vendor/Makefile" ;;
+    "port.sh") CONFIG_FILES="$CONFIG_FILES port.sh" ;;
     "vendor/tclsh") CONFIG_FILES="$CONFIG_FILES vendor/tclsh" ;;
     "src/cxx_stdlib_overridden.tcl") CONFIG_FILES="$CONFIG_FILES src/cxx_stdlib_overridden.tcl" ;;
     "src/dedup_portfiles.tcl") CONFIG_FILES="$CONFIG_FILES src/dedup_portfiles.tcl" ;;
@@ -10421,6 +10424,7 @@ $as_echo "$as_me: $ac_file is unchanged" >&6;}
 
 
   case $ac_file$ac_mode in
+    "port.sh":F) chmod +x port.sh ;;
     "vendor/tclsh":F) chmod +x vendor/tclsh ;;
     "src/cxx_stdlib_overridden.tcl":F) chmod +x src/cxx_stdlib_overridden.tcl ;;
     "src/dedup_portfiles.tcl":F) chmod +x src/dedup_portfiles.tcl ;;

configure.ac

@@ -467,6 +467,7 @@ AC_CONFIG_FILES([
 	vendor/Makefile
 ])
 
+AC_CONFIG_FILES([port.sh], [chmod +x port.sh])
 AC_CONFIG_FILES([vendor/tclsh], [chmod +x vendor/tclsh])
 AC_CONFIG_FILES([src/cxx_stdlib_overridden.tcl], [chmod +x src/cxx_stdlib_overridden.tcl])
 AC_CONFIG_FILES([src/dedup_portfiles.tcl], [chmod +x src/dedup_portfiles.tcl])

port.sh.in

@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Simple shell script to invoke MacPorts from the source directory
+#
+
+export TCL_LIBRARY="@abs_srcdir@/@VENDOR_DESTROOT@@TCL_PACKAGE_PATH@/tcl@TCL_VERSION@"
+export TCLLIBPATH="@abs_srcdir@/src"
+
+# a small sandbox profile that denies access to installed sources
+sandbox_profile="
+(version 1)
+
+(allow default)
+(deny file* (subpath \"@TCL_PACKAGE_PATH@\"))
+"
+
+if ! [ -d "$TCL_LIBRARY" ] || ! [ -f "@abs_srcdir@/src/port/port" ]
+then
+    echo "please build MacPorts before running this script!" 1>&2
+    exit 1
+else
+    exec sandbox-exec -p "$sandbox_profile" \
+         "@INTREE_TCLSH@" "@abs_srcdir@/src/port/port" "$@"
+fi