diff --git a/racket/collects/openssl/libcrypto.rkt b/racket/collects/openssl/libcrypto.rkt
index e6b3a2030f..64157b8e03 100644
--- a/racket/collects/openssl/libcrypto.rkt
+++ b/racket/collects/openssl/libcrypto.rkt
@@ -57,7 +57,7 @@
       [(macosx) versions]
       [else
        (case (path->string (system-library-subpath #f))
-         [("x86_64-darwin" "i386-darwin") versions]
+         [("x86_64-darwin" "i386-darwin" "aarch64-darwin") versions]
          [else
           (cons "" ; versionless (eg from devel pkg)
                 versions)])])))
diff --git a/racket/collects/setup/getinfo.rkt b/racket/collects/setup/getinfo.rkt
index bf70aa9cc8..3e76adf6dd 100644
--- a/racket/collects/setup/getinfo.rkt
+++ b/racket/collects/setup/getinfo.rkt
@@ -227,6 +227,12 @@
                      'share
                      'path->main-share-relative
                      'main-share-relative->path))
+  (define-values (path->main-lib-relative
+                  main-lib-relative->path)
+    (make-relativize find-lib-dir
+                     'lib
+                     'path->main-lib-relative
+                     'main-lib-relative->path))
   (let ([colls (make-hash)])
     (for ([f+root-dir (reverse (table-paths t))])
       (let ([f (car f+root-dir)]
@@ -245,7 +251,7 @@
                                         "bad info-domain cache file: ~a" f)]))])
             (match i
               [(list (and pathbytes (or (? bytes?)
-                                        (list (or 'info 'share) (? bytes?) ...)
+                                        (list (or 'info 'share 'lib) (? bytes?) ...)
                                         (list 'rel (or 'up (? bytes?)) ...)))
                      (list (? symbol? fields) ...)
                      key ;; anything is okay here
@@ -265,7 +271,8 @@
                            (case (car pathbytes)
                              [(rel) (simplify-path (build-path root-dir (decode-relative-path pathbytes)))]
                              [(info) (info-relative->path pathbytes)]
-                             [(lib) (main-share-relative->path pathbytes)]))
+                             [(share) (main-share-relative->path pathbytes)]
+                             [(lib) (main-lib-relative->path pathbytes)]))
                        fields)])
                  (hash-set! colls key
                             ((table-insert t) root-dir new-item old-items)))]
diff --git a/racket/collects/setup/unixstyle-install.rkt b/racket/collects/setup/unixstyle-install.rkt
index 80b4d49538..7536d02a00 100644
--- a/racket/collects/setup/unixstyle-install.rkt
+++ b/racket/collects/setup/unixstyle-install.rkt
@@ -18,10 +18,14 @@
 ;;   - `make-install-copytree': copies some toplevel directories, skips ".*"
 ;;     subdirs, and rewrites "config.rkt", but no uninstaller
 ;;     (used by `make install') (requires an additional `origtree' argument)
+;;   - `make-install-libzo-move' : moves "compiled" directories from the
+;;     "collects" and "pkg" directories under sharerkt to a "compiled"
+;;     tree under librkt (requires DESTDIR to be set if it's being
+;;     used for the installation)
 ;;   - `make-install-destdir-fix': fixes paths in binaries, laucnhers, and
 ;;     config.rkt (used by `make install' to fix a DESTDIR) (requires exactly
-;;     the same args as `make-install-copytree' (prefixed) and requires a
-;;     DESTDIR setting)
+;;     the same args as `make-install-copytree' (prefixed) plus one more
+;;     to indicate libzo mode, and requires a DESTDIR setting)
 ;; * rktdir: The source racket directory
 ;; * Path names that should be moved/copied (bin, collects, doc, lib, ...)
 ;;   or a sigle path that is used to automatically build the set of
@@ -56,13 +60,14 @@
                 [(sharerkt) "share"]
                 [(config) "etc"]
                 [(collects) "collects"]
+                [(pkgs) "share/pkgs"]
                 [(apps) "share/applications"]
                 [else (symbol->string name)])))
 (define dirs (map (lambda (name) (list name 
                                        (if base-destdir
                                            (build-dest-arg name)
                                            (get-arg))))
-		  '(bin collects doc lib includerkt librkt sharerkt config apps man #|src|#)))
+		  '(bin collects pkgs doc lib includerkt librkt sharerkt config apps man #|src|#)))
 
 (define (dir: name)
   (cadr (or (assq name dirs) (error 'getdir "unknown dir name: ~e" name))))
@@ -81,6 +86,7 @@
     (case dir
       [(bin)      #f]
       [(collects) 1]
+      [(pkgs)     1]
       [(doc)      1]
       [(include)  1]
       ;; if shared libraries are used, then these files should be moved
@@ -150,6 +156,11 @@
       (or (equal? f "share/applications")
           (skip-filter f)))))
 
+(define (add-pkgs-skip skip-filter)
+  (lambda (f)
+    (or (equal? f "share/pkgs")
+        (skip-filter f))))
+
 ;; copy a file or a directory (recursively), preserving time stamps
 ;; (racket's copy-file preservs permission bits)
 (define (cp src dst #:build-path? [build-path? #f])
@@ -300,6 +311,31 @@
           (lambda (o)
             (map (lambda (s) (displayln s o)) new-ls)))))))
 
+;; change references to "pkgs/..." to refer to `pkgs-dir`
+(define (fix-pkg-links share-dir pkgs-dir)
+  (define links-rktd (build-path share-dir "links.rktd"))
+  (when (file-exists? links-rktd)
+    (printf "Fixing package links at: ~a...\n" links-rktd)
+    (define entries (call-with-input-file links-rktd read))
+    (call-with-output-file*
+     links-rktd
+     #:exists 'truncate
+     (lambda (o)
+       (fprintf o "(\n")
+       (for ([e (in-list entries)])
+         (define p (cadr e))
+         (fprintf o " ")
+         (define m (regexp-match #rx"^pkgs/(.*)$" p))
+         (write
+          (if m
+              (list* (car e)
+                     (string-append pkgs-dir "/" (cadr m))
+                     (cddr e))
+              e)
+          o)
+         (newline o))
+       (fprintf o ")\n")))))
+
 ;; remove and record all empty dirs
 (define (remove-empty-dirs dir)
   (let loop ([dir dir] [recurse? #t])
@@ -367,7 +403,8 @@
 (define write-config
   (case-lambda
     [()  (write-config (dir: 'config))]
-    [(configdir)
+    [(configdir) (write-config configdir #f)]
+    [(configdir libzo?)
      (define (cpath . xs)
        (apply make-path configdir xs))
      (define (ftime file)
@@ -389,12 +426,18 @@
            (when (eq? 'shared (cross-system-type 'link)) ; never true for now
              (out! 'dll-dir (dir: 'lib)))
            (out! 'lib-dir (dir: 'librkt))
+           (out! 'pkgs-dir (dir: 'pkgs))
            (out! 'share-dir (dir: 'sharerkt))
            (out! 'include-dir (dir: 'includerkt))
            (out! 'bin-dir (dir: 'bin))
            (out! 'apps-dir (dir: 'apps))
            (out! 'man-dir (dir: 'man))
            (out! 'absolute-installation? #t)
+           (when libzo?
+             (out! 'compiled-file-roots
+                   (list 'same
+                         (path->string
+                          (build-path (dir: 'librkt) "compiled")))))
            ;; Preserve all other keys:
            (for ([(key val) (in-hash old)])
              (unless (hash-ref handled key #f)
@@ -470,6 +513,7 @@
 
 ;; --------------------------------------------------------------------------
 
+;; Does not support moving "collects" or "pkgs" outside of "share"
 (define (move/copy-distribution move? bundle?)
   (define do-tree (move/copy-tree move?))
   (current-directory rktdir)
@@ -486,12 +530,13 @@
         ;; All other platforms use "bin":
         (do-tree "bin"      'bin))
     (do-tree "collects" 'collects)
+    (do-tree "share/pkgs" 'pkgs)
     (do-tree "doc"      'doc #:missing 'skip) ; not included in text distros
     (do-tree "lib"      'librkt)
     (do-tree "include"  'includerkt)
     (define appfiles (ls* "share/applications"))
     (do-tree "share/applications" 'apps #:missing 'skip) ; Unix only
-    (parameterize ([current-skip-filter (make-apps-skip)])
+    (parameterize ([current-skip-filter (add-pkgs-skip (make-apps-skip))])
       (do-tree "share" 'sharerkt))
     (do-tree "etc"      'config)
     (unless (eq? 'windows (cross-system-type))
@@ -517,6 +562,9 @@
     (current-directory (dirname rktdir))
     (delete-directory rktdir)))
 
+(define (equal-path? a b)
+  (equal? (explode-path a) (explode-path b)))
+
 (define dot-file?
   ;; skip all dot-names, except ".LOCK..."
   (lambda (p) (regexp-match? #rx"^[.](?!LOCK)" (basename p))))
@@ -532,36 +580,70 @@
   (with-handlers ([exn? (lambda (e) (undo-changes) (raise e))])
     (set! yes-to-all? #t) ; non-interactive
     (copytree "collects" 'collects)
-    (copytree "share"    'sharerkt #:missing 'skip)
+    (copytree "share/pkgs" 'pkgs #:missing 'skip)
+    (parameterize ([current-skip-filter (add-pkgs-skip (current-skip-filter))])
+      (copytree "share"  'sharerkt #:missing 'skip))
     (copytree "doc"      'doc      #:missing 'skip)
     (copytree "etc"      'config   #:missing 'skip)
+    (unless (equal-path? (dir: 'pkgs) (build-path (dir: 'sharerkt) "pkgs"))
+      (fix-pkg-links (dir: 'sharerkt) (dir: 'pkgs)))
     (unless origtree? (write-config))))
 
+(define (remove-dest destdir p)
+  (if destdir
+      (let* ([destdirlen (string-length destdir)]
+             [pfx (and (< destdirlen (string-length p))
+                       (substring p 0 destdirlen))])
+        (if (equal? pfx destdir)
+            (regexp-replace #rx"^/*" (substring p destdirlen) "/")
+            (error (format "expecting a DESTDIR prefix of ~s in ~s" destdir p))))
+      p))
+
+(define (make-install-libzo-move)
+  (define destdir (getenv "DESTDIR"))
+  (define collectsdir (dir: 'collects))
+  (define pkgsdir     (dir: 'pkgs))
+  (define configdir   (dir: 'config))
+  (define (move dir)
+    (define dest-rel (regexp-replace #rx"^/*" (remove-dest destdir dir) ""))
+    (define dest (build-path (dir: 'librkt) "compiled" dest-rel))
+    (printf "Moving \"compiled\" in ~a to ~a\n" dir dest)
+    (let loop ([dir dir] [dest dest])
+      (for ([f-path (in-list (directory-list dir))])
+        (define f (path->string f-path))
+        (define f-abs (build-path dir f))
+        (when (directory-exists? f-abs)
+          (define f-dest (build-path dest f-path))
+          (cond
+            [(equal? f "compiled")
+             (make-directory* dest)
+             (rm f-dest)
+             (rename-file-or-directory f-abs f-dest)]
+            [else
+             (loop f-abs f-dest)])))))
+  (move collectsdir)
+  (move pkgsdir)
+  (write-config configdir #t))
+
 (define (make-install-destdir-fix)
   (define destdir
     (or (getenv "DESTDIR")
         (error "missing DESTDIR value for make-install-destdir-fix")))
-  (define destdirlen (string-length destdir))
   (define origtree? (equal? "yes" (get-arg)))
+  (define libzo? (equal? "libzo" (get-arg)))
   ;; grab paths before we change them
   (define bindir      (dir: 'bin))
   (define librktdir   (dir: 'librkt))
   (define sharerktdir   (dir: 'sharerkt))
   (define configdir   (dir: 'config))
   (define appsdir   (dir: 'apps))
-  (define (remove-dest p)
-    (let ([pfx (and (< destdirlen (string-length p))
-                    (substring p 0 destdirlen))])
-      (if (equal? pfx destdir)
-        (regexp-replace #rx"^/*" (substring p destdirlen) "/")
-        (error (format "expecting a DESTDIR prefix of ~s in ~s" destdir p)))))
-  (set! dirs (map (lambda (d) (list (car d) (remove-dest (cadr d)))) dirs))
+  (set! dirs (map (lambda (d) (list (car d) (remove-dest destdir (cadr d)))) dirs))
   ;; no need to send an explicit binfiles argument -- this function is used
   ;; only when DESTDIR is present, so we're installing to a directory that
   ;; has only our binaries
   (fix-executables bindir librktdir)
   (fix-desktop-files appsdir bindir sharerktdir)
-  (unless origtree? (write-config configdir)))
+  (unless origtree? (write-config configdir libzo?)))
 
 (define (post-adjust)
   (when (regexp-match? #rx"--source" (car adjust-mode))
@@ -666,5 +748,6 @@
      (move/copy-distribution #f #t)]
     [(post-adjust) (post-adjust)]
     [(make-install-copytree)    (make-install-copytree)]
+    [(make-install-libzo-move)  (make-install-libzo-move)]
     [(make-install-destdir-fix) (make-install-destdir-fix)]
     [else   (error (format "unknown operation: ~e" op))]))
diff --git a/racket/src/Makefile.in b/racket/src/Makefile.in
index 4c913a480c..9e31388bc5 100644
--- a/racket/src/Makefile.in
+++ b/racket/src/Makefile.in
@@ -13,6 +13,7 @@ libpltdir = @libpltdir@
 sharepltdir = @sharepltdir@
 configdir = @etcpltdir@
 collectsdir = @collectsdir@
+pkgsdir = @pkgsdir@
 appsdir = @appsdir@
 mandir = @mandir@
 docdir = @docdir@
@@ -22,6 +23,7 @@ NOOP = :
 
 ALLDIRINFO = "$(DESTDIR)$(bindir)" \
              "$(DESTDIR)$(collectsdir)" \
+             "$(DESTDIR)$(pkgsdir)" \
              "$(DESTDIR)$(docdir)" \
              "$(DESTDIR)$(libdir)" \
              "$(DESTDIR)$(includepltdir)" \
@@ -132,6 +134,7 @@ install-common-middle:
 	$(MAKE) @MAKE_COPYTREE@-run
 
 install-common-last:
+	$(MAKE) move-compiled-@INSTALL_LIBZO@
 	$(MAKE) fix-paths
 	$(MAKE) @MAKE_INSTALL_PKGSCOPE@-raco-pkg-default-scope
 	cp $(COPYING) "$(DESTDIR)$(sharepltdir)"/
@@ -157,13 +160,22 @@ preserve-raco-pkg-default-scope:
 install-no-post-collects:
 	$(NOOP)
 
+move-compiled-no:
+	$(NOOP)
+
+move-compiled-libzo:
+	@RUN_RACKET@ $(SELF_RACKET_FLAGS) -u \
+              "$(srcdir)/../collects/setup/unixstyle-install.rkt" \
+              make-install-libzo-move "$(srcdir)/.." \
+              $(ALLDIRINFO) \
+
 fix-paths:
 	if [ "$(DESTDIR)" != "" ]; then \
           if [ "$(SKIP_DESTDIR_FIX)" = "" ]; then \
             @RUN_RACKET@ $(SELF_RACKET_FLAGS) -u \
               "$(srcdir)/../collects/setup/unixstyle-install.rkt" \
               make-install-destdir-fix "$(srcdir)/.." \
-              $(ALLDIRINFO) "@INSTALL_ORIG_TREE@"; \
+              $(ALLDIRINFO) "@INSTALL_ORIG_TREE@" "@INSTALL_LIBZO@"; \
           fi \
         fi
 
diff --git a/racket/src/README.txt b/racket/src/README.txt
index d476418ce2..967b5a9275 100644
--- a/racket/src/README.txt
+++ b/racket/src/README.txt
@@ -232,6 +232,20 @@ Detailed instructions:
     compiling ".zo" files, creating launchers, or building
     documentation.
 
+    For a `--prefix` build, unless `--enable-sharezo` is specified,
+    "compiled" directories containin ".zo" files are moved from
+    "share" to "lib" as the last step of installation. (The
+    "config.rktd" file is updated so that `current-compile-file-roots`
+    is initialized to find the relocated ".zo" files.) For Racket BC,
+    ".zo" files are architecture-independent, and `--enable-sharezo`
+    was the default installation mode through Racket version 8.0. To
+    prepare additional packages (i.e., package that are not included
+    with the source distribution) in installation scope without
+    `--enable-sharezo`, then it's easiest to first install in-place,
+    then configure and install again for a `--prefix` build; that way,
+    the packages installed in-place will get carried along, and their
+    "compiled" directories will be moved appropriately.
+
     If the installation fails because the target directory cannot be
     created, or because the target directory is not the one you want,
     then you can try repeating step 4 after running `configure` again
diff --git a/racket/src/ac/asan_arg.m4 b/racket/src/ac/asan_arg.m4
index 556b4d2795..ce71d284f0 100644
--- a/racket/src/ac/asan_arg.m4
+++ b/racket/src/ac/asan_arg.m4
@@ -1 +1 @@
-AC_ARG_ENABLE(asan,   [  --enable-asan          compile with -fsanitize=address])
+AC_ARG_ENABLE(asan,   [  --enable-asan           compile with -fsanitize=address])
diff --git a/racket/src/ac/make-configure b/racket/src/ac/make-configure
index c1e79bfa34..5d8a3d6d5d 100755
--- a/racket/src/ac/make-configure
+++ b/racket/src/ac/make-configure
@@ -52,9 +52,10 @@ exit 0
          htmldir
          ;; Note: any arguments converted this way need to be excluded in "rktio_keep.m4"
          ;;  dvidir - converted to "collectsdir"
-         ;;  pdfdir - converted to "appsdir"
+         ;;  pdfdir - converted to "pkgsdir"
          psdir
-         localedir)))
+         ;;  localedir - converted to "appsdir"
+        )))
 
 (let loop ()
   (let ([l (read-line)])
@@ -76,14 +77,24 @@ exit 0
           (displayln (regexp-replace* "pdf" (regexp-replace* #rx"dvi" l "collects") "apps"))])
         (loop)]
        [(regexp-match #rx"pdfdir" l)
-        ;; Hack: take over "pdfdir" for "appsdir":
+        ;; Hack: take over "pdfdir" for "pkgsdir":
         (cond
          [(equal? l "pdfdir='${docdir}'")
-          (displayln "appsdir='${exec_prefix}/share/applications'")]
+          (displayln "pkgsdir='${datarootdir}/${PACKAGE}/pkgs'")]
          [(equal? l "  --pdfdir=DIR            pdf documentation [DOCDIR]")
+          (displayln "  --pkgsdir=DIR           installed pkgs [EPREFIX/share/PACKAGE/pkgs]")]
+         [else
+          (displayln (regexp-replace* #rx"pdf" l "pkgs"))])
+        (loop)]
+       [(regexp-match #rx"localedir" l)
+        ;; Hack: take over "localedir" for "appsdir":
+        (cond
+         [(equal? l "localedir='${datarootdir}/locale'")
+          (displayln "appsdir='${exec_prefix}/share/applications'")]
+         [(equal? l "  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]")
           (displayln "  --appsdir=DIR           .desktop files [EPREFIX/share/applications]")]
          [else
-          (displayln (regexp-replace* #rx"pdf" l "apps"))])
+          (displayln (regexp-replace* #rx"locale" l "apps"))])
         (loop)]
        [else
         ;; Copy
diff --git a/racket/src/ac/path.m4 b/racket/src/ac/path.m4
index 1f85d1b14a..8a702b51a1 100644
--- a/racket/src/ac/path.m4
+++ b/racket/src/ac/path.m4
@@ -43,6 +43,9 @@ if test "${enable_origtree}" != "yes" -a "${enable_useprefix}" != "no" ; then
   if test "${collectsdir}" != '${exec_prefix}/share/${PACKAGE}/collects' ; then
     unixstyle=yes
   fi
+  if test "${pkgsdir}" != '${datarootdir}/${PACKAGE}/pkgs' ; then
+    unixstyle=yes
+  fi
   if test "${appsdir}" != '${exec_prefix}/share/applications' ; then
     unixstyle=yes
   fi
@@ -65,12 +68,17 @@ if test "${unixstyle}" = "no" ; then
   docdir='${prefix}/doc'
   mandir='${prefix}/man'
   collectsdir='${prefix}/collects'
+  pkgsdir='${prefix}/share/pkgs'
   appsdir='${prefix}/share/applications'
   COLLECTS_PATH="../collects"
   CONFIG_PATH="../etc"
   GR_APP_COLLECTS_PATH="../../../../collects"
   GR_APP_CONFIG_PATH="../../../../etc"
   INSTALL_ORIG_TREE=yes
+  if test "${enable_sharezo}" = "yes" ; then
+    enable_sharezo=no
+    echo WARNING: --enable-sharezo is ignored for an origtree installation
+  fi
 else
   if test "${prefix}" = "NONE" ; then
     # Set prefix explicitly so we can use it during configure
@@ -97,6 +105,12 @@ fi
 GUI_COLLECTS_PATH="${COLLECTS_PATH}"
 GUI_CONFIG_PATH="${CONFIG_PATH}"
 
+if test "${enable_sharezo}" = "yes" ; then
+  INSTALL_LIBZO=no
+else
+  INSTALL_LIBZO=yes
+fi
+
 ########################################
 
 AC_SUBST(collectsdir)
@@ -107,6 +121,7 @@ AC_SUBST(sharepltdir)
 AC_SUBST(etcpltdir)
 AC_SUBST(includepltdir)
 AC_SUBST(docdir)
+AC_SUBST(pkgsdir)
 
 AC_SUBST(COLLECTS_PATH)
 AC_SUBST(GUI_COLLECTS_PATH)
@@ -119,6 +134,7 @@ AC_SUBST(MAKE_COPYTREE)
 AC_SUBST(MAKE_GRACKET)
 AC_SUBST(LIBFINISH)
 AC_SUBST(INSTALL_ORIG_TREE)
+AC_SUBST(INSTALL_LIBZO)
 
 AC_SUBST(MMM)
 AC_SUBST(MMM_INSTALLED)
@@ -157,6 +173,7 @@ show_path_results()
     echo " platform libraries : ${libpltdir}/..."
     echo " common libraries   : ${sharepltdir}/..."
     echo " base collections   : ${collectsdir}/..."
+    echo " installed pkgs     : ${pkgsdir}/..."
     echo " configuration      : ${etcpltdir}/..."
     echo " .desktop files     : ${appsdir}/..."
     echo " man pages          : ${mandir}/..."
diff --git a/racket/src/ac/path_arg.m4 b/racket/src/ac/path_arg.m4
index 5e14ece838..1ef6670eff 100644
--- a/racket/src/ac/path_arg.m4
+++ b/racket/src/ac/path_arg.m4
@@ -1,5 +1,6 @@
 
 AC_ARG_ENABLE(origtree,  [  --enable-origtree       install with original directory structure])
+AC_ARG_ENABLE(sharezo,   [  --enable-sharezo        install ".zo"s to "share", not "lib"])
 AC_ARG_ENABLE(useprefix, [  --disable-useprefix     ignore any --prefix setting])
 AC_ARG_ENABLE(pkgscope,  [  --enable-pkgscope=<s>   set `raco pkg' default: installation, user, or shared])
 
diff --git a/racket/src/ac/path_show.m4 b/racket/src/ac/path_show.m4
new file mode 100644
index 0000000000..1ef1621238
--- /dev/null
+++ b/racket/src/ac/path_show.m4
@@ -0,0 +1 @@
+show_explicitly_enabled "${enable_libzo}" 'Compiled ".zo" files moved to lib'
diff --git a/racket/src/ac/rktio_keep.m4 b/racket/src/ac/rktio_keep.m4
index f5f6488281..1d5a99fd36 100644
--- a/racket/src/ac/rktio_keep.m4
+++ b/racket/src/ac/rktio_keep.m4
@@ -7,7 +7,9 @@ for fixup_arg
 do
   case $fixup_arg in
   # Strip away all feature choices
-  -enable* | --enable* | -disable* | --disable* | -collects* | --collects* | -apps* | --apps*)
+  -enable* | --enable* | -disable* | --disable*)
+    ;;
+  -collects* | --collects* | -apps* | --apps* | -pkgs* | --pkgs*)
     ;;
   *)
     case $fixup_arg in
diff --git a/racket/src/bc/configure b/racket/src/bc/configure
index 7c1c18efa1..d1856d4dc7 100755
--- a/racket/src/bc/configure
+++ b/racket/src/bc/configure
@@ -731,6 +731,7 @@ CGC
 MMM_CAP_INSTALLED
 MMM_INSTALLED
 MMM
+INSTALL_LIBZO
 INSTALL_ORIG_TREE
 LIBFINISH
 MAKE_GRACKET
@@ -741,6 +742,7 @@ CONFIG_PATH
 GR_APP_COLLECTS_PATH
 GUI_COLLECTS_PATH
 COLLECTS_PATH
+pkgsdir
 includepltdir
 etcpltdir
 sharepltdir
@@ -770,10 +772,10 @@ ECHO_N
 ECHO_C
 DEFS
 mandir
-localedir
+appsdir
 libdir
 psdir
-appsdir
+pkgsdir
 collectsdir
 htmldir
 infodir
@@ -812,6 +814,7 @@ enable_floatinstead
 enable_extflonum
 enable_racket
 enable_origtree
+enable_sharezo
 enable_useprefix
 enable_pkgscope
 enable_docs
@@ -902,10 +905,10 @@ docdir='${datarootdir}/doc/${PACKAGE}'
 infodir='${datarootdir}/info'
 htmldir='${docdir}'
 collectsdir='${exec_prefix}/share/${PACKAGE}/collects'
-appsdir='${exec_prefix}/share/applications'
+pkgsdir='${datarootdir}/${PACKAGE}/pkgs'
 psdir='${docdir}'
 libdir='${exec_prefix}/lib'
-localedir='${datarootdir}/locale'
+appsdir='${exec_prefix}/share/applications'
 mandir='${datarootdir}/man'
 
 ac_prev=
@@ -1060,10 +1063,10 @@ do
   | --libexe=* | --libex=* | --libe=*)
     libexecdir=$ac_optarg ;;
 
-  -localedir | --localedir | --localedi | --localed | --locale)
-    ac_prev=localedir ;;
-  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
-    localedir=$ac_optarg ;;
+  -appsdir | --appsdir | --appsdi | --appsd | --apps)
+    ac_prev=appsdir ;;
+  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=*)
+    appsdir=$ac_optarg ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst | --locals)
@@ -1134,10 +1137,10 @@ do
   | --progr-tra=* | --program-tr=* | --program-t=*)
     program_transform_name=$ac_optarg ;;
 
-  -appsdir | --appsdir | --appsdi | --appsd | --apps | --pd)
-    ac_prev=appsdir ;;
-  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=* | --pd=*)
-    appsdir=$ac_optarg ;;
+  -pkgsdir | --pkgsdir | --pkgsdi | --pkgsd | --pkgs | --pd)
+    ac_prev=pkgsdir ;;
+  -pkgsdir=* | --pkgsdir=* | --pkgsdi=* | --pkgsd=* | --pkgs=* | --pd=*)
+    pkgsdir=$ac_optarg ;;
 
   -psdir | --psdir | --psdi | --psd | --ps)
     ac_prev=psdir ;;
@@ -1285,7 +1288,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir collectsdir appsdir psdir \
-		libdir localedir mandir
+		libdir appsdir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1438,10 +1441,11 @@ Fine tuning of the installation directories:
   --includedir=DIR        C header files [PREFIX/include]
   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
   --mandir=DIR            man documentation [DATAROOTDIR/man]
   --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
   --collectsdir=DIR       base collections [EPREFIX/share/PACKAGE/collects]
-  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
+  --pkgsdir=DIR           installed pkgs [EPREFIX/share/PACKAGE/pkgs]
 _ACEOF
 
   cat <<\_ACEOF
@@ -1471,6 +1475,7 @@ Optional Features:
   --enable-extflonum      support extflonums (enabled by default, if available)
   --enable-racket=<path>  use <path> as Racket to build; or "auto" to create
   --enable-origtree       install with original directory structure
+  --enable-sharezo        install ".zo"s to "share", not "lib"
   --disable-useprefix     ignore any --prefix setting
   --enable-pkgscope=<s>   set `raco pkg' default: installation, user, or shared
   --enable-docs           build docs on install (enabled by default)
@@ -2683,6 +2688,11 @@ if test "${enable_origtree+set}" = set; then :
   enableval=$enable_origtree;
 fi
 
+# Check whether --enable-sharezo was given.
+if test "${enable_sharezo+set}" = set; then :
+  enableval=$enable_sharezo;
+fi
+
 # Check whether --enable-useprefix was given.
 if test "${enable_useprefix+set}" = set; then :
   enableval=$enable_useprefix;
@@ -3079,6 +3089,9 @@ if test "${enable_origtree}" != "yes" -a "${enable_useprefix}" != "no" ; then
   if test "${collectsdir}" != '${exec_prefix}/share/${PACKAGE}/collects' ; then
     unixstyle=yes
   fi
+  if test "${pkgsdir}" != '${datarootdir}/${PACKAGE}/pkgs' ; then
+    unixstyle=yes
+  fi
   if test "${appsdir}" != '${exec_prefix}/share/applications' ; then
     unixstyle=yes
   fi
@@ -3101,12 +3114,17 @@ if test "${unixstyle}" = "no" ; then
   docdir='${prefix}/doc'
   mandir='${prefix}/man'
   collectsdir='${prefix}/collects'
+  pkgsdir='${prefix}/share/pkgs'
   appsdir='${prefix}/share/applications'
   COLLECTS_PATH="../collects"
   CONFIG_PATH="../etc"
   GR_APP_COLLECTS_PATH="../../../../collects"
   GR_APP_CONFIG_PATH="../../../../etc"
   INSTALL_ORIG_TREE=yes
+  if test "${enable_sharezo}" = "yes" ; then
+    enable_sharezo=no
+    echo WARNING: --enable-sharezo is ignored for an origtree installation
+  fi
 else
   if test "${prefix}" = "NONE" ; then
     # Set prefix explicitly so we can use it during configure
@@ -3133,6 +3151,12 @@ fi
 GUI_COLLECTS_PATH="${COLLECTS_PATH}"
 GUI_CONFIG_PATH="${CONFIG_PATH}"
 
+if test "${enable_sharezo}" = "yes" ; then
+  INSTALL_LIBZO=no
+else
+  INSTALL_LIBZO=yes
+fi
+
 ########################################
 
 
@@ -3164,6 +3188,8 @@ GUI_CONFIG_PATH="${CONFIG_PATH}"
 
 
 
+
+
 
 
 
@@ -3193,6 +3219,7 @@ show_path_results()
     echo " platform libraries : ${libpltdir}/..."
     echo " common libraries   : ${sharepltdir}/..."
     echo " base collections   : ${collectsdir}/..."
+    echo " installed pkgs     : ${pkgsdir}/..."
     echo " configuration      : ${etcpltdir}/..."
     echo " .desktop files     : ${appsdir}/..."
     echo " man pages          : ${mandir}/..."
@@ -3296,6 +3323,8 @@ show_explicitly_enabled "${enable_natipkg}" "Adding \"-natipkg\" suffix to libra
 
 
 show_explicitly_enabled "${enable_xonx}" "Unix style"
+show_explicitly_enabled "${enable_libzo}" 'Compiled ".zo" files moved to lib'
+
 show_explicitly_enabled "${enable_shared}" "Shared libraries"
 
 show_explicitly_disabled "${enable_gracket}" GRacket
@@ -7283,7 +7312,9 @@ for fixup_arg
 do
   case $fixup_arg in
   # Strip away all feature choices
-  -enable* | --enable* | -disable* | --disable* | -collects* | --collects* | -apps* | --apps*)
+  -enable* | --enable* | -disable* | --disable*)
+    ;;
+  -collects* | --collects* | -apps* | --apps* | -pkgs* | --pkgs*)
     ;;
   *)
     case $fixup_arg in
@@ -8454,11 +8485,11 @@ ac_sed_dataroot='
 /@datadir@/p
 /@docdir@/p
 /@infodir@/p
-/@localedir@/p
+/@appsdir@/p
 /@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+*@datadir@*|*@docdir@*|*@infodir@*|*@appsdir@*|*@mandir@*)
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
@@ -8467,7 +8498,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
   s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
+  s&@appsdir@&$appsdir&g
   s&@mandir@&$mandir&g
   s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
diff --git a/racket/src/bc/configure.ac b/racket/src/bc/configure.ac
index 0879f3183d..c16622773c 100644
--- a/racket/src/bc/configure.ac
+++ b/racket/src/bc/configure.ac
@@ -174,6 +174,7 @@ show_explicitly_enabled "${enable_usersetup}" "User-specific setup on install"
 m4_include(../ac/natipkg_show.m4)
 
 show_explicitly_enabled "${enable_xonx}" "Unix style"
+m4_include(../ac/path_show.m4)
 show_explicitly_enabled "${enable_shared}" "Shared libraries"
 
 show_explicitly_disabled "${enable_gracket}" GRacket
diff --git a/racket/src/cfg-bc b/racket/src/cfg-bc
index 8cad106f70..b114bfcb03 100755
--- a/racket/src/cfg-bc
+++ b/racket/src/cfg-bc
@@ -600,6 +600,7 @@ CGC
 MMM_CAP_INSTALLED
 MMM_INSTALLED
 MMM
+INSTALL_LIBZO
 INSTALL_ORIG_TREE
 LIBFINISH
 MAKE_GRACKET
@@ -610,6 +611,7 @@ CONFIG_PATH
 GR_APP_COLLECTS_PATH
 GUI_COLLECTS_PATH
 COLLECTS_PATH
+pkgsdir
 includepltdir
 etcpltdir
 sharepltdir
@@ -641,10 +643,10 @@ ECHO_N
 ECHO_C
 DEFS
 mandir
-localedir
+appsdir
 libdir
 psdir
-appsdir
+pkgsdir
 collectsdir
 htmldir
 infodir
@@ -674,6 +676,7 @@ ac_subst_files=''
 ac_user_opts='
 enable_option_checking
 enable_origtree
+enable_sharezo
 enable_useprefix
 enable_pkgscope
 enable_docs
@@ -737,10 +740,10 @@ docdir='${datarootdir}/doc/${PACKAGE}'
 infodir='${datarootdir}/info'
 htmldir='${docdir}'
 collectsdir='${exec_prefix}/share/${PACKAGE}/collects'
-appsdir='${exec_prefix}/share/applications'
+pkgsdir='${datarootdir}/${PACKAGE}/pkgs'
 psdir='${docdir}'
 libdir='${exec_prefix}/lib'
-localedir='${datarootdir}/locale'
+appsdir='${exec_prefix}/share/applications'
 mandir='${datarootdir}/man'
 
 ac_prev=
@@ -895,10 +898,10 @@ do
   | --libexe=* | --libex=* | --libe=*)
     libexecdir=$ac_optarg ;;
 
-  -localedir | --localedir | --localedi | --localed | --locale)
-    ac_prev=localedir ;;
-  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
-    localedir=$ac_optarg ;;
+  -appsdir | --appsdir | --appsdi | --appsd | --apps)
+    ac_prev=appsdir ;;
+  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=*)
+    appsdir=$ac_optarg ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst | --locals)
@@ -969,10 +972,10 @@ do
   | --progr-tra=* | --program-tr=* | --program-t=*)
     program_transform_name=$ac_optarg ;;
 
-  -appsdir | --appsdir | --appsdi | --appsd | --apps | --pd)
-    ac_prev=appsdir ;;
-  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=* | --pd=*)
-    appsdir=$ac_optarg ;;
+  -pkgsdir | --pkgsdir | --pkgsdi | --pkgsd | --pkgs | --pd)
+    ac_prev=pkgsdir ;;
+  -pkgsdir=* | --pkgsdir=* | --pkgsdi=* | --pkgsd=* | --pkgs=* | --pd=*)
+    pkgsdir=$ac_optarg ;;
 
   -psdir | --psdir | --psdi | --psd | --ps)
     ac_prev=psdir ;;
@@ -1120,7 +1123,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir collectsdir appsdir psdir \
-		libdir localedir mandir
+		libdir appsdir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1273,10 +1276,11 @@ Fine tuning of the installation directories:
   --includedir=DIR        C header files [PREFIX/include]
   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
   --mandir=DIR            man documentation [DATAROOTDIR/man]
   --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
   --collectsdir=DIR       base collections [EPREFIX/share/PACKAGE/collects]
-  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
+  --pkgsdir=DIR           installed pkgs [EPREFIX/share/PACKAGE/pkgs]
 _ACEOF
 
   cat <<\_ACEOF
@@ -1297,6 +1301,7 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-origtree       install with original directory structure
+  --enable-sharezo        install ".zo"s to "share", not "lib"
   --disable-useprefix     ignore any --prefix setting
   --enable-pkgscope=<s>   set `raco pkg' default: installation, user, or shared
   --enable-docs           build docs on install (enabled by default)
@@ -1898,6 +1903,11 @@ if test "${enable_origtree+set}" = set; then :
   enableval=$enable_origtree;
 fi
 
+# Check whether --enable-sharezo was given.
+if test "${enable_sharezo+set}" = set; then :
+  enableval=$enable_sharezo;
+fi
+
 # Check whether --enable-useprefix was given.
 if test "${enable_useprefix+set}" = set; then :
   enableval=$enable_useprefix;
@@ -2129,6 +2139,9 @@ if test "${enable_origtree}" != "yes" -a "${enable_useprefix}" != "no" ; then
   if test "${collectsdir}" != '${exec_prefix}/share/${PACKAGE}/collects' ; then
     unixstyle=yes
   fi
+  if test "${pkgsdir}" != '${datarootdir}/${PACKAGE}/pkgs' ; then
+    unixstyle=yes
+  fi
   if test "${appsdir}" != '${exec_prefix}/share/applications' ; then
     unixstyle=yes
   fi
@@ -2151,12 +2164,17 @@ if test "${unixstyle}" = "no" ; then
   docdir='${prefix}/doc'
   mandir='${prefix}/man'
   collectsdir='${prefix}/collects'
+  pkgsdir='${prefix}/share/pkgs'
   appsdir='${prefix}/share/applications'
   COLLECTS_PATH="../collects"
   CONFIG_PATH="../etc"
   GR_APP_COLLECTS_PATH="../../../../collects"
   GR_APP_CONFIG_PATH="../../../../etc"
   INSTALL_ORIG_TREE=yes
+  if test "${enable_sharezo}" = "yes" ; then
+    enable_sharezo=no
+    echo WARNING: --enable-sharezo is ignored for an origtree installation
+  fi
 else
   if test "${prefix}" = "NONE" ; then
     # Set prefix explicitly so we can use it during configure
@@ -2183,6 +2201,12 @@ fi
 GUI_COLLECTS_PATH="${COLLECTS_PATH}"
 GUI_CONFIG_PATH="${CONFIG_PATH}"
 
+if test "${enable_sharezo}" = "yes" ; then
+  INSTALL_LIBZO=no
+else
+  INSTALL_LIBZO=yes
+fi
+
 ########################################
 
 
@@ -2214,6 +2238,8 @@ GUI_CONFIG_PATH="${CONFIG_PATH}"
 
 
 
+
+
 
 
 
@@ -2243,6 +2269,7 @@ show_path_results()
     echo " platform libraries : ${libpltdir}/..."
     echo " common libraries   : ${sharepltdir}/..."
     echo " base collections   : ${collectsdir}/..."
+    echo " installed pkgs     : ${pkgsdir}/..."
     echo " configuration      : ${etcpltdir}/..."
     echo " .desktop files     : ${appsdir}/..."
     echo " man pages          : ${mandir}/..."
@@ -3414,11 +3441,11 @@ ac_sed_dataroot='
 /@datadir@/p
 /@docdir@/p
 /@infodir@/p
-/@localedir@/p
+/@appsdir@/p
 /@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+*@datadir@*|*@docdir@*|*@infodir@*|*@appsdir@*|*@mandir@*)
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
@@ -3427,7 +3454,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
   s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
+  s&@appsdir@&$appsdir&g
   s&@mandir@&$mandir&g
   s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
diff --git a/racket/src/cfg-cs b/racket/src/cfg-cs
index 5f3df3b675..657969c887 100755
--- a/racket/src/cfg-cs
+++ b/racket/src/cfg-cs
@@ -600,6 +600,7 @@ CGC
 MMM_CAP_INSTALLED
 MMM_INSTALLED
 MMM
+INSTALL_LIBZO
 INSTALL_ORIG_TREE
 LIBFINISH
 MAKE_GRACKET
@@ -610,6 +611,7 @@ CONFIG_PATH
 GR_APP_COLLECTS_PATH
 GUI_COLLECTS_PATH
 COLLECTS_PATH
+pkgsdir
 includepltdir
 etcpltdir
 sharepltdir
@@ -641,10 +643,10 @@ ECHO_N
 ECHO_C
 DEFS
 mandir
-localedir
+appsdir
 libdir
 psdir
-appsdir
+pkgsdir
 collectsdir
 htmldir
 infodir
@@ -674,6 +676,7 @@ ac_subst_files=''
 ac_user_opts='
 enable_option_checking
 enable_origtree
+enable_sharezo
 enable_useprefix
 enable_pkgscope
 enable_docs
@@ -734,10 +737,10 @@ docdir='${datarootdir}/doc/${PACKAGE}'
 infodir='${datarootdir}/info'
 htmldir='${docdir}'
 collectsdir='${exec_prefix}/share/${PACKAGE}/collects'
-appsdir='${exec_prefix}/share/applications'
+pkgsdir='${datarootdir}/${PACKAGE}/pkgs'
 psdir='${docdir}'
 libdir='${exec_prefix}/lib'
-localedir='${datarootdir}/locale'
+appsdir='${exec_prefix}/share/applications'
 mandir='${datarootdir}/man'
 
 ac_prev=
@@ -892,10 +895,10 @@ do
   | --libexe=* | --libex=* | --libe=*)
     libexecdir=$ac_optarg ;;
 
-  -localedir | --localedir | --localedi | --localed | --locale)
-    ac_prev=localedir ;;
-  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
-    localedir=$ac_optarg ;;
+  -appsdir | --appsdir | --appsdi | --appsd | --apps)
+    ac_prev=appsdir ;;
+  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=*)
+    appsdir=$ac_optarg ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst | --locals)
@@ -966,10 +969,10 @@ do
   | --progr-tra=* | --program-tr=* | --program-t=*)
     program_transform_name=$ac_optarg ;;
 
-  -appsdir | --appsdir | --appsdi | --appsd | --apps | --pd)
-    ac_prev=appsdir ;;
-  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=* | --pd=*)
-    appsdir=$ac_optarg ;;
+  -pkgsdir | --pkgsdir | --pkgsdi | --pkgsd | --pkgs | --pd)
+    ac_prev=pkgsdir ;;
+  -pkgsdir=* | --pkgsdir=* | --pkgsdi=* | --pkgsd=* | --pkgs=* | --pd=*)
+    pkgsdir=$ac_optarg ;;
 
   -psdir | --psdir | --psdi | --psd | --ps)
     ac_prev=psdir ;;
@@ -1117,7 +1120,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir collectsdir appsdir psdir \
-		libdir localedir mandir
+		libdir appsdir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1270,10 +1273,11 @@ Fine tuning of the installation directories:
   --includedir=DIR        C header files [PREFIX/include]
   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
   --mandir=DIR            man documentation [DATAROOTDIR/man]
   --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
   --collectsdir=DIR       base collections [EPREFIX/share/PACKAGE/collects]
-  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
+  --pkgsdir=DIR           installed pkgs [EPREFIX/share/PACKAGE/pkgs]
 _ACEOF
 
   cat <<\_ACEOF
@@ -1294,6 +1298,7 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-origtree       install with original directory structure
+  --enable-sharezo        install ".zo"s to "share", not "lib"
   --disable-useprefix     ignore any --prefix setting
   --enable-pkgscope=<s>   set `raco pkg' default: installation, user, or shared
   --enable-docs           build docs on install (enabled by default)
@@ -1891,6 +1896,11 @@ if test "${enable_origtree+set}" = set; then :
   enableval=$enable_origtree;
 fi
 
+# Check whether --enable-sharezo was given.
+if test "${enable_sharezo+set}" = set; then :
+  enableval=$enable_sharezo;
+fi
+
 # Check whether --enable-useprefix was given.
 if test "${enable_useprefix+set}" = set; then :
   enableval=$enable_useprefix;
@@ -2092,6 +2102,9 @@ if test "${enable_origtree}" != "yes" -a "${enable_useprefix}" != "no" ; then
   if test "${collectsdir}" != '${exec_prefix}/share/${PACKAGE}/collects' ; then
     unixstyle=yes
   fi
+  if test "${pkgsdir}" != '${datarootdir}/${PACKAGE}/pkgs' ; then
+    unixstyle=yes
+  fi
   if test "${appsdir}" != '${exec_prefix}/share/applications' ; then
     unixstyle=yes
   fi
@@ -2114,12 +2127,17 @@ if test "${unixstyle}" = "no" ; then
   docdir='${prefix}/doc'
   mandir='${prefix}/man'
   collectsdir='${prefix}/collects'
+  pkgsdir='${prefix}/share/pkgs'
   appsdir='${prefix}/share/applications'
   COLLECTS_PATH="../collects"
   CONFIG_PATH="../etc"
   GR_APP_COLLECTS_PATH="../../../../collects"
   GR_APP_CONFIG_PATH="../../../../etc"
   INSTALL_ORIG_TREE=yes
+  if test "${enable_sharezo}" = "yes" ; then
+    enable_sharezo=no
+    echo WARNING: --enable-sharezo is ignored for an origtree installation
+  fi
 else
   if test "${prefix}" = "NONE" ; then
     # Set prefix explicitly so we can use it during configure
@@ -2146,6 +2164,12 @@ fi
 GUI_COLLECTS_PATH="${COLLECTS_PATH}"
 GUI_CONFIG_PATH="${CONFIG_PATH}"
 
+if test "${enable_sharezo}" = "yes" ; then
+  INSTALL_LIBZO=no
+else
+  INSTALL_LIBZO=yes
+fi
+
 ########################################
 
 
@@ -2177,6 +2201,8 @@ GUI_CONFIG_PATH="${CONFIG_PATH}"
 
 
 
+
+
 
 
 
@@ -2206,6 +2232,7 @@ show_path_results()
     echo " platform libraries : ${libpltdir}/..."
     echo " common libraries   : ${sharepltdir}/..."
     echo " base collections   : ${collectsdir}/..."
+    echo " installed pkgs     : ${pkgsdir}/..."
     echo " configuration      : ${etcpltdir}/..."
     echo " .desktop files     : ${appsdir}/..."
     echo " man pages          : ${mandir}/..."
@@ -3317,11 +3344,11 @@ ac_sed_dataroot='
 /@datadir@/p
 /@docdir@/p
 /@infodir@/p
-/@localedir@/p
+/@appsdir@/p
 /@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+*@datadir@*|*@docdir@*|*@infodir@*|*@appsdir@*|*@mandir@*)
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
@@ -3330,7 +3357,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
   s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
+  s&@appsdir@&$appsdir&g
   s&@mandir@&$mandir&g
   s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
diff --git a/racket/src/cs/c/Makefile.in b/racket/src/cs/c/Makefile.in
index 6bdd797ec6..9c5548d3c7 100644
--- a/racket/src/cs/c/Makefile.in
+++ b/racket/src/cs/c/Makefile.in
@@ -207,10 +207,12 @@ EMBED_DEPS = $(srcdir)/embed-boot.rkt
 racketcs@NOT_OSX@@NOT_MINGW@: raw_racketcs petite-v.boot scheme-v.boot racket-v.boot $(EMBED_DEPS)
 	$(BOOTSTRAP_RACKET) $(srcdir)/embed-boot.rkt @ELF_COMP@ --target $(TARGET_MACH) @BOOT_COMPRESS_COMP@ raw_racketcs racketcs petite-v.boot scheme-v.boot racket-v.boot
 	@POST_LINKER@ racketcs
+	$(RESTORE_SIGNATURE) racketcs
 
 gracketcs@NOT_OSX@@NOT_MINGW@: raw_gracketcs petite-v.boot scheme-v.boot racket-v.boot $(EMBED_DEPS)
 	$(BOOTSTRAP_RACKET) $(srcdir)/embed-boot.rkt @ELF_COMP@ --target $(TARGET_MACH) @BOOT_COMPRESS_COMP@ raw_gracketcs gracketcs petite-v.boot scheme-v.boot racket-v.boot
 	@POST_LINKER@ gracketcs
+	$(RESTORE_SIGNATURE) gracketcs
 
 OWN_Z_LIB = $(SCHEME_TARGET_INC)/../../zlib/libz.a
 OWN_LZ4_LIB = $(SCHEME_TARGET_INC)/../../lz4/lib/liblz4.a
diff --git a/racket/src/cs/c/configure b/racket/src/cs/c/configure
index 221d1806e5..92e5f8b9c7 100755
--- a/racket/src/cs/c/configure
+++ b/racket/src/cs/c/configure
@@ -702,6 +702,7 @@ CGC
 MMM_CAP_INSTALLED
 MMM_INSTALLED
 MMM
+INSTALL_LIBZO
 INSTALL_ORIG_TREE
 LIBFINISH
 MAKE_GRACKET
@@ -712,6 +713,7 @@ CONFIG_PATH
 GR_APP_COLLECTS_PATH
 GUI_COLLECTS_PATH
 COLLECTS_PATH
+pkgsdir
 includepltdir
 etcpltdir
 sharepltdir
@@ -743,10 +745,10 @@ ECHO_N
 ECHO_C
 DEFS
 mandir
-localedir
+appsdir
 libdir
 psdir
-appsdir
+pkgsdir
 collectsdir
 htmldir
 infodir
@@ -783,6 +785,7 @@ enable_wpo
 enable_compress
 enable_compressboot
 enable_origtree
+enable_sharezo
 enable_useprefix
 enable_pkgscope
 enable_docs
@@ -863,10 +866,10 @@ docdir='${datarootdir}/doc/${PACKAGE}'
 infodir='${datarootdir}/info'
 htmldir='${docdir}'
 collectsdir='${exec_prefix}/share/${PACKAGE}/collects'
-appsdir='${exec_prefix}/share/applications'
+pkgsdir='${datarootdir}/${PACKAGE}/pkgs'
 psdir='${docdir}'
 libdir='${exec_prefix}/lib'
-localedir='${datarootdir}/locale'
+appsdir='${exec_prefix}/share/applications'
 mandir='${datarootdir}/man'
 
 ac_prev=
@@ -1021,10 +1024,10 @@ do
   | --libexe=* | --libex=* | --libe=*)
     libexecdir=$ac_optarg ;;
 
-  -localedir | --localedir | --localedi | --localed | --locale)
-    ac_prev=localedir ;;
-  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
-    localedir=$ac_optarg ;;
+  -appsdir | --appsdir | --appsdi | --appsd | --apps)
+    ac_prev=appsdir ;;
+  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=*)
+    appsdir=$ac_optarg ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst | --locals)
@@ -1095,10 +1098,10 @@ do
   | --progr-tra=* | --program-tr=* | --program-t=*)
     program_transform_name=$ac_optarg ;;
 
-  -appsdir | --appsdir | --appsdi | --appsd | --apps | --pd)
-    ac_prev=appsdir ;;
-  -appsdir=* | --appsdir=* | --appsdi=* | --appsd=* | --apps=* | --pd=*)
-    appsdir=$ac_optarg ;;
+  -pkgsdir | --pkgsdir | --pkgsdi | --pkgsd | --pkgs | --pd)
+    ac_prev=pkgsdir ;;
+  -pkgsdir=* | --pkgsdir=* | --pkgsdi=* | --pkgsd=* | --pkgs=* | --pd=*)
+    pkgsdir=$ac_optarg ;;
 
   -psdir | --psdir | --psdi | --psd | --ps)
     ac_prev=psdir ;;
@@ -1246,7 +1249,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir collectsdir appsdir psdir \
-		libdir localedir mandir
+		libdir appsdir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1399,10 +1402,11 @@ Fine tuning of the installation directories:
   --includedir=DIR        C header files [PREFIX/include]
   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
   --mandir=DIR            man documentation [DATAROOTDIR/man]
   --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
   --collectsdir=DIR       base collections [EPREFIX/share/PACKAGE/collects]
-  --appsdir=DIR           .desktop files [EPREFIX/share/applications]
+  --pkgsdir=DIR           installed pkgs [EPREFIX/share/PACKAGE/pkgs]
 _ACEOF
 
   cat <<\_ACEOF
@@ -1430,6 +1434,7 @@ Optional Features:
   --enable-compress       compress compiled code (enabled by default)
   --enable-compressboot   compress boot files
   --enable-origtree       install with original directory structure
+  --enable-sharezo        install ".zo"s to "share", not "lib"
   --disable-useprefix     ignore any --prefix setting
   --enable-pkgscope=<s>   set `raco pkg' default: installation, user, or shared
   --enable-docs           build docs on install (enabled by default)
@@ -1454,7 +1459,7 @@ Optional Features:
   --enable-libs           install static libraries (enabled by default for Unix)
   --enable-strip          strip debug on install (usually enabled by default)
   --enable-ubsan          compile with -fsanitize=undefined
-  --enable-asan          compile with -fsanitize=address
+  --enable-asan           compile with -fsanitize=address
   --enable-bcdefault      install BC without suffix
   --enable-bconly         BC default, and skip CS build
   --enable-csdefault      install CS without suffix
@@ -2556,6 +2561,11 @@ if test "${enable_origtree+set}" = set; then :
   enableval=$enable_origtree;
 fi
 
+# Check whether --enable-sharezo was given.
+if test "${enable_sharezo+set}" = set; then :
+  enableval=$enable_sharezo;
+fi
+
 # Check whether --enable-useprefix was given.
 if test "${enable_useprefix+set}" = set; then :
   enableval=$enable_useprefix;
@@ -2813,6 +2823,8 @@ show_explicitly_disabled "${enable_pthread}" "pthreads"
 show_explicitly_disabled "${enable_compress}" "Compressed code"
 show_explicitly_enabled "${enable_compressboot}" "Compressed boot files"
 show_explicitly_enabled "${enable_xonx}" "Unix style"
+show_explicitly_enabled "${enable_libzo}" 'Compiled ".zo" files moved to lib'
+
 show_explicitly_set "${enable_racket}" "Racket"
 show_explicitly_set "${enable_scheme}" "Chez Scheme build directory"
 show_explicitly_set "${enable_mach}" "machine type"
@@ -3042,6 +3054,9 @@ if test "${enable_origtree}" != "yes" -a "${enable_useprefix}" != "no" ; then
   if test "${collectsdir}" != '${exec_prefix}/share/${PACKAGE}/collects' ; then
     unixstyle=yes
   fi
+  if test "${pkgsdir}" != '${datarootdir}/${PACKAGE}/pkgs' ; then
+    unixstyle=yes
+  fi
   if test "${appsdir}" != '${exec_prefix}/share/applications' ; then
     unixstyle=yes
   fi
@@ -3064,12 +3079,17 @@ if test "${unixstyle}" = "no" ; then
   docdir='${prefix}/doc'
   mandir='${prefix}/man'
   collectsdir='${prefix}/collects'
+  pkgsdir='${prefix}/share/pkgs'
   appsdir='${prefix}/share/applications'
   COLLECTS_PATH="../collects"
   CONFIG_PATH="../etc"
   GR_APP_COLLECTS_PATH="../../../../collects"
   GR_APP_CONFIG_PATH="../../../../etc"
   INSTALL_ORIG_TREE=yes
+  if test "${enable_sharezo}" = "yes" ; then
+    enable_sharezo=no
+    echo WARNING: --enable-sharezo is ignored for an origtree installation
+  fi
 else
   if test "${prefix}" = "NONE" ; then
     # Set prefix explicitly so we can use it during configure
@@ -3096,6 +3116,12 @@ fi
 GUI_COLLECTS_PATH="${COLLECTS_PATH}"
 GUI_CONFIG_PATH="${CONFIG_PATH}"
 
+if test "${enable_sharezo}" = "yes" ; then
+  INSTALL_LIBZO=no
+else
+  INSTALL_LIBZO=yes
+fi
+
 ########################################
 
 
@@ -3127,6 +3153,8 @@ GUI_CONFIG_PATH="${CONFIG_PATH}"
 
 
 
+
+
 
 
 
@@ -3156,6 +3184,7 @@ show_path_results()
     echo " platform libraries : ${libpltdir}/..."
     echo " common libraries   : ${sharepltdir}/..."
     echo " base collections   : ${collectsdir}/..."
+    echo " installed pkgs     : ${pkgsdir}/..."
     echo " configuration      : ${etcpltdir}/..."
     echo " .desktop files     : ${appsdir}/..."
     echo " man pages          : ${mandir}/..."
@@ -5643,7 +5672,9 @@ for fixup_arg
 do
   case $fixup_arg in
   # Strip away all feature choices
-  -enable* | --enable* | -disable* | --disable* | -collects* | --collects* | -apps* | --apps*)
+  -enable* | --enable* | -disable* | --disable*)
+    ;;
+  -collects* | --collects* | -apps* | --apps* | -pkgs* | --pkgs*)
     ;;
   *)
     case $fixup_arg in
@@ -6874,11 +6905,11 @@ ac_sed_dataroot='
 /@datadir@/p
 /@docdir@/p
 /@infodir@/p
-/@localedir@/p
+/@appsdir@/p
 /@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+*@datadir@*|*@docdir@*|*@infodir@*|*@appsdir@*|*@mandir@*)
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
@@ -6887,7 +6918,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@datadir@&$datadir&g
   s&@docdir@&$docdir&g
   s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
+  s&@appsdir@&$appsdir&g
   s&@mandir@&$mandir&g
   s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
diff --git a/racket/src/cs/c/configure.ac b/racket/src/cs/c/configure.ac
index 56262a27cc..cce93252e6 100644
--- a/racket/src/cs/c/configure.ac
+++ b/racket/src/cs/c/configure.ac
@@ -74,6 +74,7 @@ show_explicitly_disabled "${enable_pthread}" "pthreads"
 show_explicitly_disabled "${enable_compress}" "Compressed code"
 show_explicitly_enabled "${enable_compressboot}" "Compressed boot files"
 show_explicitly_enabled "${enable_xonx}" "Unix style"
+m4_include(../ac/path_show.m4)
 show_explicitly_set "${enable_racket}" "Racket"
 show_explicitly_set "${enable_scheme}" "Chez Scheme build directory"
 show_explicitly_set "${enable_mach}" "machine type"
diff --git a/racket/src/cs/c/embed-boot.rkt b/racket/src/cs/c/embed-boot.rkt
index 5ad55884f9..e6c8d71e4d 100644
--- a/racket/src/cs/c/embed-boot.rkt
+++ b/racket/src/cs/c/embed-boot.rkt
@@ -53,10 +53,12 @@
                    bstr3 terminator))
    (define pos
      (case (or target (path->string (system-library-subpath #f)))
-       [("x86_64-darwin" "i386-darwin" "aarch64-darwin"
+       [("ta6osx" "ti3osx" "tarm64osx"
+         "x86_64-darwin" "i386-darwin" "aarch64-darwin"
          "x86_64-macosx" "i386-macosx" "aarch64-macosx")
         ;; Mach-O
         (copy-file use-src-file dest-file #t)
+        (remove-signature dest-file)
         (add-plt-segment dest-file data #:name #"__RKTBOOT")
         ;; Find segment at run time:
         0]