From 8d7687842f099e3e7e60d3a83fed58b2c6a92863 Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Sun, 6 Feb 2022 10:36:09 -0700
Subject: [PATCH 1/2] Chez Scheme: adapt bootfile build for supplied `Scheme=`

(cherry picked from commit fca1e02349664060e10278ca2ce6577a949bebf5)

(Fixed conflicts by dropping pbchunks and pbarch changes.)
---
 racket/src/ChezScheme/configure  | 15 ++++++++++++++-
 racket/src/ChezScheme/s/Mf-base  |  4 ++--
 racket/src/ChezScheme/s/Mf-cross |  4 +++-
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/racket/src/ChezScheme/configure b/racket/src/ChezScheme/configure
index 4515ffc105..0098829091 100755
--- a/racket/src/ChezScheme/configure
+++ b/racket/src/ChezScheme/configure
@@ -45,6 +45,7 @@ threads=yes
 nothreads=no
 temproot=""
 help=no
+forceworkarea=no
 gzipmanpages=yes
 installowner=""
 installgroup=""
@@ -205,6 +206,9 @@ while [ $# != 0 ] ; do
     --pb)
       pb=yes
       ;;
+    --force)
+      forceworkarea=yes
+      ;;
     --installprefix=*)
       installprefix=`echo $1 | sed -e 's/^--installprefix=//'`
       ;;
@@ -439,6 +443,7 @@ if [ "$help" = "yes" ]; then
   echo "  --toolprefix=<prefix>             prefix tool (compiler, linker, ...) names"
   echo "  --[no]gzip-man-pages              compress manual pages ($gzipmanpages)"
   echo "  --workarea=<pathname>             build directory ($w)"
+  echo "  --force                           configure even without boot files"
   echo "  CC=<C compiler>                   C compiler"
   echo "  CPPFLAGS=<C preprocessor flags>   C preprocessor flags"
   echo "  CFLAGS=<C compiler flags>         C compiler flags"
@@ -721,8 +726,16 @@ case "${flagsmuni}" in
         ;;
 esac
 
+if [ "$w" = "$m" ] ; then
+    configuringin=""
+else
+    configuringin=" in $w"
+fi
+
 if [ -f boot/$m/scheme.boot -o -f "$srcdir"/boot/$m/scheme.boot ] ; then
-  echo "Configuring for $m"
+    echo "Configuring for $m$configuringin"
+elif [ "$forceworkarea" = yes ] ; then
+    echo "Configuring for $m$configuringin despite missing boot files"
 else
   if [ "$m" = "" ] ; then
       maybem="<machine type>"
diff --git a/racket/src/ChezScheme/s/Mf-base b/racket/src/ChezScheme/s/Mf-base
index cc6178c973..1f4a967998 100644
--- a/racket/src/ChezScheme/s/Mf-base
+++ b/racket/src/ChezScheme/s/Mf-base
@@ -94,7 +94,7 @@ endif
 # that Scheme and SCHEMEHEAPDIRS are set by Mf-cross to point to the host Scheme
 # implementation
 Scheme = ../bin/$m/scheme${ExeSuffix}
-export SCHEMEHEAPDIRS=../boot/%m
+export SCHEMEHEAPDIRS=../boot/$m
 export CHEZSCHEMELIBDIRS=.
 
 # Define the libdirs separator character
@@ -691,4 +691,4 @@ reset-one:
 
 .PHONY: run
 run:
-	env SCHEMEHEAPDIRS=../boot/$m/ ../bin/$m/scheme $(ARGS)
+	env SCHEMEHEAPDIRS=${SCHEMEHEAPDIRS} ${Scheme} $(ARGS)
diff --git a/racket/src/ChezScheme/s/Mf-cross b/racket/src/ChezScheme/s/Mf-cross
index d796cbb459..397af59a28 100644
--- a/racket/src/ChezScheme/s/Mf-cross
+++ b/racket/src/ChezScheme/s/Mf-cross
@@ -43,5 +43,7 @@ x$(xm).$(m):
 	$(MAKE) -f Mf-cross m=$(m) xm=$(xm) i=f o=3 d=0 xpatch
 	mv xpatch x$(xm).$(m)
 
+ifneq ($(SCHEMEHEAPDIRS),:)
 # Ensure that cross-compiling "nanopass.so" is rebuilt if the host compiler changed
-nanopass.so: ${SCHEME} ${SCHEMEHEAPDIRS}/petite.boot ${SCHEMEHEAPDIRS}/scheme.boot
+nanopass.so: ${Scheme} ${SCHEMEHEAPDIRS}/petite.boot ${SCHEMEHEAPDIRS}/scheme.boot
+endif
-- 
2.32.0


From 26c8e2c1d9b02ad85acef8bda40d92154cf0b699 Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Sun, 6 Feb 2022 11:03:30 -0700
Subject: [PATCH 2/2] configure: make `--enable-scheme` work with an executable

When the same Chez Scheme version as used by Racket is already
available, then `--enable-scheme=...` can supply an executable. For
cross builds, `--enable-scheme=...` can still supply a build
directory, instead, as before.

(cherry picked from commit 4f0e76855ce7e86107de495292a553469daf0b3f)
---
 racket/src/ChezScheme/makefiles/Makefile.in |  3 ++
 racket/src/README.txt                       | 30 +++++++++++---
 racket/src/configure                        |  8 +++-
 racket/src/cs/README.txt                    |  6 ++-
 racket/src/cs/c/Makefile.in                 | 44 ++++++++++++++++-----
 racket/src/cs/c/configure                   | 24 +++++++++--
 racket/src/cs/c/configure.ac                | 21 ++++++++--
 7 files changed, 112 insertions(+), 24 deletions(-)

diff --git a/racket/src/ChezScheme/makefiles/Makefile.in b/racket/src/ChezScheme/makefiles/Makefile.in
index c396efc851..3998ef9ccd 100644
--- a/racket/src/ChezScheme/makefiles/Makefile.in
+++ b/racket/src/ChezScheme/makefiles/Makefile.in
@@ -59,6 +59,9 @@ reset:
 %.boot:
 	(cd $(workarea) && $(MAKE) $*.boot)
 
+auto.boot:
+	(cd $(workarea) && $(MAKE) $(defaultm).boot)
+
 # <machine>.bootquick to build boot files for <machine>
 # with o=3 d=0 for the cross compiler, and only after
 # building the kernel for the configured machine
diff --git a/racket/src/README.txt b/racket/src/README.txt
index 98647aebce..d77310b4a4 100644
--- a/racket/src/README.txt
+++ b/racket/src/README.txt
@@ -354,6 +354,10 @@ variant of MinGW without "libdelayimp.a", get the implementation of
 ========================================================================
 
 Cross-compilation requires at least two flags to `configure`:
+`--host=OS` and either `--enable-racket=RACKET` or (for Racket CS)
+`--enable-scheme-SCHEME`.
+
+More information:
 
  * `--host=OS`, where OS is something like `i386-gnu-linux` to
    indicate the target platform.
@@ -374,11 +378,27 @@ Cross-compilation requires at least two flags to `configure`:
    run `configure` again (with no arguments) in a "local" subdirectory
    to create a build for the current platform.
 
-An additional flag is needed for building Racket CS, unless the flag
-`--enable-racket=auto` is used:
-
- * `--enable-scheme=DIR`, where DIR is a path that has a "ChezScheme"
-   directory where Chez Scheme is built for the host system.
+ * `--enable-scheme=SCHEME`, where SCHEME is a Chez Scheme executable
+   executable that runs on the build platform; the executable must be
+   the same version as used in Racket built for the target platform.
+ 
+   Supplying `--enable-scheme=DIR` is also supported in cross-build
+   mode, where DIR is a path that has a "ChezScheme" directory where
+   Chez Scheme is built for the host system.
+
+The `--enable-racket=RACKET` and `--enable-scheme=SCHEME` flags are
+allowed for non-cross builds, too:
+
+ * For Racket CS, supplying either selects a Racket or Chez Scheme
+   implementation used to create boot files to the build platform.
+   Suppling Chez Scheme is a much more direct path, but when Racket is
+   supplied, its version does not have to match the version being
+   built.
+
+ * For Racket BC, `--enable-racket=RACKET` selects a Racket for
+   prepare C sources to cooperate with garbage collection. Its version
+   needs to be close to the one being built, and potentially exactly
+   the same version.
 
 Some less commonly needed `configure` flags are for Racket BC:
 
diff --git a/racket/src/configure b/racket/src/configure
index c9f3ba4419..1b53ec7ce2 100755
--- a/racket/src/configure
+++ b/racket/src/configure
@@ -9,6 +9,7 @@ pb_dir="$dir/ChezScheme/boot/pb"
 use_cs=maybe
 use_bc=maybe
 supplied_racket=no
+supplied_scheme=no
 enable_boothelp=
 
 # We don't have to detect conflicts like `--enable-csdefault --enable-bcdefault`,
@@ -34,6 +35,9 @@ for arg in $*; do
         --enable-racket=*)
             supplied_racket=yes
             ;;
+        --enable-scheme=*)
+            supplied_scheme=yes
+            ;;
         --help | -h)
             echo $0:
             echo see --help-bc or --help-cs, since the Racket CS build and the
@@ -70,8 +74,8 @@ elif test "$use_cs" = "maybe" ; then
 fi
 
 if test "$use_cs" = "yes" ; then
-    if test $use_bc = no  -a $supplied_racket = no -a ! -d "$pb_dir" ; then
-        echo $0: must have $pb_dir or --enable-racket=... for --enable-csonly
+    if test $use_bc = no  -a $supplied_racket = no  -a $supplied_scheme = no  -a ! -d "$pb_dir" ; then
+        echo $0: must have $pb_dir, --enable-racket=... or --enable-scheme=... for --enable-csonly
         exit 1
     fi
 
diff --git a/racket/src/cs/README.txt b/racket/src/cs/README.txt
index 2ece417b78..8e6fc57b74 100644
--- a/racket/src/cs/README.txt
+++ b/racket/src/cs/README.txt
@@ -39,6 +39,11 @@ build:
    installed in the "../ChezScheme/boot/pb" directory as described by
    "../ChezScheme/BUILDING".
 
+   Supplying `--enable-scheme=...` is also an option if you alerady
+   have the same version of Chez Scheme built on the current platform.
+   Another build will be created, anyway, but more quickly than
+   without Chez Scheme.
+
  * Racket is needed to generate the files in the "schemified"
    directory from the sources in sibling directories like "../io". The
    Racket version must be practically the same as the current Racket
@@ -48,7 +53,6 @@ build:
    Unlike Chez Scheme boot files, the files generated in "schemified"
    are human-readable and -editable Scheme code. That provides a way
    out of bootstrapping black holes, even without BC.
-   
 
 
 ========================================================================
diff --git a/racket/src/cs/c/Makefile.in b/racket/src/cs/c/Makefile.in
index 54a644a1d9..d73993f0fc 100644
--- a/racket/src/cs/c/Makefile.in
+++ b/racket/src/cs/c/Makefile.in
@@ -12,7 +12,9 @@ CS_HOST_WORKAREA_PREFIX = @CS_HOST_WORKAREA_PREFIX@
 SCHEME_HOST_WORKAREA = $(CS_HOST_WORKAREA_PREFIX)$(SCHEME_WORKAREA)
 SCHEME_BIN = $(SCHEME_HOST_WORKAREA)/$(MACH)/bin/$(MACH)/scheme
 SCHEME_INC = $(SCHEME_HOST_WORKAREA)/$(MACH)/boot/$(MACH)
-SCHEME = $(SCHEME_BIN) -B $(SCHEME_INC)/petite.boot -B $(SCHEME_INC)/scheme.boot
+SCHEME_built = $(SCHEME_BIN) -B $(SCHEME_INC)/petite.boot -B $(SCHEME_INC)/scheme.boot
+SCHEME_existing = @MAKE_SCHEME_SCHEME@
+SCHEME = $(SCHEME@USE_SCHEME_MODE@)
 
 TARGET_MACH = @TARGET_MACH@
 SCHEME_TARGET_INC = $(SCHEME_WORKAREA)/$(TARGET_MACH)/boot/$(TARGET_MACH)
@@ -88,7 +90,7 @@ mainsrcdir = @srcdir@/../..
 @INCLUDEDEP@ @srcdir@/../../version/version.mak
 
 cs:
-	$(MAKE) scheme@T_CROSS_MODE@
+	$(MAKE) scheme@MAKE_SCHEME_MODE@
 	$(MAKE) racket-so
 	cd rktio; $(MAKE)
 	$(MAKE) racketcs
@@ -121,9 +123,13 @@ racket-so:
 
 RACKET_SO_ENV = @CONFIGURE_RACKET_SO_COMPILE@
 
+TARGET_MACH_built = $(TARGET_MACH)
+TARGET_MACH_existing = xc-$(TARGET_MACH)
+XPATCH_FILE = $(SCHEME_WORKAREA)/$(TARGET_MACH@USE_SCHEME_MODE@)/s/xpatch
+
 CS_PROGS = SCHEME="$(SCHEME)"
 CS_OPTS = COMPRESS_COMP=@COMPRESS_COMP@ @ENABLE_OR_DISABLE_WPO@
-CS_OPTScross = $(CS_OPTS) CSO=$(MACH) CROSS_COMP="--xpatch $(SCHEME_WORKAREA)/$(TARGET_MACH)/s/xpatch"
+CS_OPTScross = $(CS_OPTS) CSO=$(MACH) CROSS_COMP="--xpatch $(XPATCH_FILE)"
 PASS_COMPILE_DEPS = EXTRA_COMPILE_DEPS="$(SCHEME_INC)/petite.boot $(SCHEME_INC)/scheme.boot"
 
 build-racket-so:
@@ -163,6 +169,15 @@ pb-bootquick:
 	cd $(SCHEME_WORKAREA) && $(MAKE) reset
 	$(SHELL) $(srcdir)/ready_boot.sh $(MACH) $(SCHEME_WORKAREA)
 
+scheme-via-scheme:
+	$(MAKE) $(SCHEME_WORKAREA)/boot/$(MACH)/scheme.boot
+	$(MAKE) mach-make
+
+$(SCHEME_WORKAREA)/boot/$(MACH)/scheme.boot:
+	mkdir -p $(SCHEME_WORKAREA)
+	$(MAKE) config-scheme CONFIG_SCHEME_MODE="$(CONFIG_SCHEME_MODE) --force"
+	cd $(SCHEME_WORKAREA) && $(MAKE) $(MACH).boot Scheme="$(SCHEME)" SCHEMEHEAPDIRS=: o=3 d=0 what=all
+
 mach-make:
 	$(MAKE) config-scheme
 	cd $(SCHEME_WORKAREA) && $(MAKE)
@@ -182,24 +197,33 @@ config-scheme:
 
 scheme-cross:
 	env MAKE_BOOT_FOR_CROSS=yes SCHEME_SRC="$(SCHEME_DIR)" SCHEME_WORKAREA=$(SCHEME_WORKAREA) MACH="$(TARGET_MACH)" $(BOOTSTRAP_RACKET) "$(SCHEME_DIR)"/rktboot/make-boot.rkt
+	$(MAKE) finish-scheme-cross
+
+finish-scheme-cross:
 	$(SHELL) $(srcdir)/reset_boot.sh $(TARGET_MACH) $(SCHEME_WORKAREA)
 	cd $(SCHEME_WORKAREA) && "$(UP_SCHEME_DIR)"/configure @SCHEME_CROSS_CONFIG_ARGS@ $(SCHEME_CONFIG_VARS)
 	cd $(SCHEME_WORKAREA)/$(TARGET_MACH)/c && $(CHOST_HACK@T_CROSS_MODE@) $(MAKE) o=o cross=t
-	$(MAKE) $(SCHEME_WORKAREA)/$(TARGET_MACH)/s/xpatch
+	$(MAKE) $(XPATCH_FILE)
+
+scheme-cross-via-scheme:
+	$(MAKE) $(SCHEME_WORKAREA)/boot/$(TARGET_MACH)/scheme.boot MACH=$(TARGET_MACH)
+	$(MAKE) finish-scheme-cross
 
 # Rebuild patch file and cross "petite.boot" and "scheme.boot" when older
-# than the build-host "scheme.boot" or when "make-boot.rkt" touchs dummy boot files
-XPATCH_DEPS = $(SCHEME_HOST_WORKAREA)/$(MACH)/boot/$(MACH)/scheme.boot \
-              $(SCHEME_WORKAREA)/boot/$(TARGET_MACH)/scheme.boot
+# than the build-<host "scheme.boot" or when "make-boot.rkt" touchs dummy boot files
+XPATCH_DEPS_built = $(SCHEME_HOST_WORKAREA)/$(MACH)/boot/$(MACH)/scheme.boot \
+                    $(SCHEME_WORKAREA)/boot/$(TARGET_MACH)/scheme.boot
+XPATCH_DEPS_existing = 
+XPATCH_DEPS = $(XPATCH_DEPS@USE_SCHEME_MODE@)
 
-$(SCHEME_WORKAREA)/$(TARGET_MACH)/s/xpatch: $(XPATCH_DEPS)
+$(XPATCH_FILE): $(XPATCH_DEPS)
 	$(MAKE) bounce TARGET=build-xpatch-using-host
 
 build-xpatch-using-host:
 	cd $(SCHEME_WORKAREA)/$(TARGET_MACH)/s && $(MAKE) -f Mf-cross m=$(MACH) xm=$(TARGET_MACH) Scheme="$(SCHEME_BIN)" SCHEMEHEAPDIRS="$(SCHEME_INC)"
 
 XPATCH =
-XPATCHcross = --xpatch $(SCHEME_WORKAREA)/$(TARGET_MACH)/s/xpatch
+XPATCHcross = --xpatch $(XPATCH_FILE)
 
 racket.boot: racket.so
 	$(SCHEME) --script $(srcdir)/convert-to-boot.ss @BOOT_COMPRESS_COMP@ $(XPATCH@CROSS_MODE@) racket.so racket.boot $(TARGET_MACH)
@@ -410,7 +434,7 @@ install-cross:
 	$(MAKE) compile-xpatch.$(TARGET_MACH)
 	$(MAKE) library-xpatch.$(TARGET_MACH)
 
-SCHEME_XPATCH = $(SCHEME_WORKAREA)/$(TARGET_MACH)/s/xpatch
+SCHEME_XPATCH = $(XPATCH_FILE)
 
 CROSS_SERVE_DEPS = $(srcdir)/mk-cross-serve.ss $(srcdir)/cross-serve.ss \
                    $(srcdir)/../expander/env.ss $(srcdir)/../linklet/config.ss
diff --git a/racket/src/cs/c/configure b/racket/src/cs/c/configure
index 21695a431a..1eeef57753 100755
--- a/racket/src/cs/c/configure
+++ b/racket/src/cs/c/configure
@@ -654,6 +654,9 @@ MINGW
 NOT_OSX
 OSX
 SETUP_BOOT_MODE
+USE_SCHEME_MODE
+MAKE_SCHEME_SCHEME
+MAKE_SCHEME_MODE
 TT_CROSS_MODE
 T_CROSS_MODE
 CROSS_MODE
@@ -1448,7 +1451,7 @@ Optional Features:
   --enable-docs           build docs on install (enabled by default)
   --enable-usersetup      setup user-specific files on install
   --enable-racket=<path>  use <path> as Racket for build; or "auto" to create
-  --enable-scheme=<path>  use <path> as host's build directory for cross
+  --enable-scheme=<path>  use <path> as host build for cross
   --enable-mach=<mach>    use Chez Scheme machine type <mach>
   --enable-target=<mach>  cross-build for Chez Scheme machine type <mach>
   --enable-portable       prefer portable to host-specific
@@ -2867,7 +2870,7 @@ show_explicitly_enabled "${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 "${enable_scheme}" "Chez Scheme for build"
 show_explicitly_set "${enable_mach}" "machine type"
 show_explicitly_set "${enable_target}" "cross-build machine type"
 show_explicitly_enabled "${enable_portable}" "portable"
@@ -4745,9 +4748,21 @@ esac
 
 SCHEME_DIR=${srcdir}/../../ChezScheme
 MAKE_BUILD_SCHEME=checkout
+USE_SCHEME_MODE="_built"
+MAKE_SCHEME_MODE="${T_CROSS_MODE}"
 
 if test "${enable_scheme}" != "" ; then
-  CS_HOST_WORKAREA_PREFIX="${enable_scheme}/"
+   if test -d "${enable_scheme}" ; then
+     # Directory exists, so use it as a build directory
+     echo "Using supplied Scheme path as a build directory"
+     CS_HOST_WORKAREA_PREFIX="${enable_scheme}/"
+   else
+     # Directory does not exist, so assume it's an executable
+     echo "Using supplied Scheme path as an executable"
+     MAKE_SCHEME_MODE="${T_CROSS_MODE}-via-scheme"
+     MAKE_SCHEME_SCHEME="${enable_scheme}"
+     USE_SCHEME_MODE="_existing"
+   fi
 fi
 
 if test "${enable_racket}" != "" ; then
@@ -6012,6 +6027,9 @@ SCHEME_CROSS_CONFIG_ARGS="--machine=${TARGET_MACH} --disable-x11 ${cs_auto_flags
 
 
 
+
+
+
 
 
 
diff --git a/racket/src/cs/c/configure.ac b/racket/src/cs/c/configure.ac
index 464ebe1760..aaee88156d 100644
--- a/racket/src/cs/c/configure.ac
+++ b/racket/src/cs/c/configure.ac
@@ -23,7 +23,7 @@ AC_ARG_ENABLE(compressmore, [  --enable-compressmore   compress compiled code ev
 AC_ARG_ENABLE(compressboot, [  --enable-compressboot   compress boot files])
 m4_include(../ac/path_arg.m4)
 AC_ARG_ENABLE(racket,     [  --enable-racket=<path>  use <path> as Racket for build; or "auto" to create])
-AC_ARG_ENABLE(scheme,     [  --enable-scheme=<path>  use <path> as host's build directory for cross])
+AC_ARG_ENABLE(scheme,     [  --enable-scheme=<path>  use <path> as host build for cross])
 AC_ARG_ENABLE(mach,       [  --enable-mach=<mach>    use Chez Scheme machine type <mach>])
 AC_ARG_ENABLE(target,     [  --enable-target=<mach>  cross-build for Chez Scheme machine type <mach>])
 m4_include(../ac/portable_arg.m4)
@@ -81,7 +81,7 @@ show_explicitly_disabled "${enable_compressboot}" "Compressed boot files"
 show_explicitly_enabled "${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 "${enable_scheme}" "Chez Scheme for build"
 show_explicitly_set "${enable_mach}" "machine type"
 show_explicitly_set "${enable_target}" "cross-build machine type"
 m4_include(../ac/portable_show.m4)
@@ -504,9 +504,21 @@ esac
 
 SCHEME_DIR=${srcdir}/../../ChezScheme
 MAKE_BUILD_SCHEME=checkout
+USE_SCHEME_MODE="_built"
+MAKE_SCHEME_MODE="${T_CROSS_MODE}"
 
 if test "${enable_scheme}" != "" ; then
-  CS_HOST_WORKAREA_PREFIX="${enable_scheme}/"
+   if test -d "${enable_scheme}" ; then
+     # Directory exists, so use it as a build directory
+     echo "Using supplied Scheme path as a build directory"
+     CS_HOST_WORKAREA_PREFIX="${enable_scheme}/"
+   else
+     # Directory does not exist, so assume it's an executable
+     echo "Using supplied Scheme path as an executable"
+     MAKE_SCHEME_MODE="${T_CROSS_MODE}-via-scheme"
+     MAKE_SCHEME_SCHEME="${enable_scheme}"
+     USE_SCHEME_MODE="_existing"
+   fi     
 fi
 
 if test "${enable_racket}" != "" ; then
@@ -821,6 +833,9 @@ AC_SUBST(DIFF_MACH)
 AC_SUBST(CROSS_MODE)
 AC_SUBST(T_CROSS_MODE)
 AC_SUBST(TT_CROSS_MODE)
+AC_SUBST(MAKE_SCHEME_MODE)
+AC_SUBST(MAKE_SCHEME_SCHEME)
+AC_SUBST(USE_SCHEME_MODE)
 AC_SUBST(SETUP_BOOT_MODE)
 AC_SUBST(OSX)
 AC_SUBST(NOT_OSX)
-- 
2.32.0