From 41cb727d8241abd87d9d231f361e91a8de9009e9 Mon Sep 17 00:00:00 2001
From: felix <address@hidden>
Date: Sat, 30 Dec 2017 14:15:03 +0100
Subject: [PATCH] Added script to automate bootstrapping and some instructions
 in the README

---
 README               |   27 ++++++++++++++++++++++-----
 scripts/bootstrap.sh |   39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+), 5 deletions(-)
 create mode 100755 scripts/bootstrap.sh

diff --git a/README b/README
index c7ec23c..4749ac8 100644
--- a/README
+++ b/README
@@ -645,11 +645,28 @@ _/        _/    _/    _/    _/        _/  _/    _/        _/    _/_/
           make PLATFORM=<platform> CHICKEN=<path-to-existing-chicken> \
             boot-chicken
 
-	This will produce a statically linked binary with the name
-	"chicken-boot[.exe]" that can be given as the value of the
-	"CHICKEN" argument when invoking make(1). Note that the path
-	to an existing `chicken' binary must be given to use it for
-	compiling the Scheme code of the runtime-system and compiler.
+        This will produce a statically linked binary with the name
+        "chicken-boot[.exe]" that can be given as the value of the
+        "CHICKEN" argument when invoking make(1). Note that the path
+        to an existing `chicken' binary must be given to use it for
+        compiling the Scheme code of the runtime-system and compiler.
+
+        "scripts/bootstrap.sh" automates this process, use this script if
+        you are unsure how to build from the repository sources. It
+        downloads the necessary development snapshot with wget(1)
+        and builds the boot-chicken that you can use to compile the
+        development sources. The invocation is
+
+            scripts/bootstrap.sh PLATFORM=<platform> ...
+
+        You can add additional parameters if you like to customize the 
+        build, but this should not be necessary. Note that your current
+        working directory must be the root directory of the CHICKEN
+        git(1) repository. Once the boot-chicken is built, proceed by
+        invoking make(1) as described above, with the additional
+        parameter
+
+            make CHICKEN=./chicken-boot PLATFORM=<...> PREFIX=<...>
 
 
  7. Emacs support
diff --git a/scripts/bootstrap.sh b/scripts/bootstrap.sh
new file mode 100755
index 0000000..e74cf2d
--- /dev/null
+++ b/scripts/bootstrap.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+set -e
+
+if test -z "$1"; then
+    echo "usage: bootstrap.sh PLATFORM=<platform> VAR=<val> ..." >&2
+    exit 1
+fi
+
+# build 5.0.0pre4 development snapshot
+
+mkdir -p boot/pre4
+cd boot
+wget http://code.call-cc.org/dev-snapshots/2017/12/14/chicken-5.0.0pre4.tar.gz
+tar xfz chicken-5.0.0pre4.tar.gz
+cd chicken-5.0.0pre4
+make PREFIX=$PWD/../pre4 "$@"
+make PREFIX=$PWD/../pre4 "$@" install
+cd ../..
+
+# build a boot-chicken from git head using pre4 chicken and
+# then use that to build the real thing
+#
+# baf6363e535b26a67d0b9a7d71a93d8deb5de8c6 hardcodes
+# some import libraries and removes deprecated internals, so
+# a boot-chicken needs to be built.
+
+make "$@" spotless
+make CHICKEN=$PWD/boot/pre4/bin/chicken "$@" boot-chicken
+
+# remove pre4 installation and tarball
+rm -fr boot/pre4
+rm -fr boot/chicken-5.0.0pre4
+rm -f boot/chicken-5.0.0pre4.tar.gz
+
+echo
+echo "now proceed by building the proper chicken by passing"
+echo "'CHICKEN=./chicken-boot' in addition to PREFIX, PLATFORM"
+echo "and further parameters."
+echo
-- 
1.7.9.5