From 569d107cce540315f637375c07e9685f25999fe7 Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Fri, 25 Feb 2011 03:06:50 -0800
Subject: Drop sysroot.sh dependency on CydiaSubstrate.

---
 compiling.txt |  9 ++++-----
 sysroot.sh    | 25 ++++++++++++++++++++++---
 2 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/compiling.txt b/compiling.txt
index 72d3040..bb3b719 100644
--- a/compiling.txt
+++ b/compiling.txt
@@ -9,10 +9,9 @@
        -or-
 
     b) doing the following crazy stunts:
-        i) install Cydia Substrate (in beta)
-        ii) install Fink (the only sane choice)
-        iii) activate Fink (. /sw/bin/init.sh)
-        iv) fink install bash ldid tar wget
-        v) run ./sysroot.sh and wait a bit
+        i) install Fink (the only sane choice)
+        ii) activate Fink (. /sw/bin/init.sh)
+        ii) fink install bash ldid tar wget xz
+        iv) run ./sysroot.sh and wait a bit
 
 3) type "make" to compile the executable
diff --git a/sysroot.sh b/sysroot.sh
index f03d3a9..71521db 100755
--- a/sysroot.sh
+++ b/sysroot.sh
@@ -11,8 +11,6 @@ set -e
 shopt -s extglob
 shopt -s nullglob
 
-PATH=/Library/Cydia/bin:$PATH
-
 rm -rf sysroot
 mkdir sysroot
 cd sysroot
@@ -22,6 +20,10 @@ distribution=tangelo
 component=main
 architecture=iphoneos-arm
 
+declare -A dpkgz
+dpkgz[gz]=gunzip
+dpkgz[lzma]=unlzma
+
 wget -qO- "${repository}dists/${distribution}/${component}/binary-${architecture}/Packages.bz2" | bzcat | {
     regex='^([^ \t]*): *(.*)'
     declare -A fields
@@ -31,8 +33,25 @@ wget -qO- "${repository}dists/${distribution}/${component}/binary-${architecture
             package=${fields[package]}
             if [[ ${package} == *(apr|apr-lib|apt7|apt7-lib|coreutils|mobilesubstrate|pcre) ]]; then
                 filename=${fields[filename]}
+
                 wget -O "${package}.deb" "${repository}${filename}"
-                dpkg-deb -x "${package}.deb" .
+                for z in lzma gz; do
+                    compressed=data.tar.${z}
+
+                    if ar -x "${package}.deb" "${compressed}" 2>/dev/null; then
+                        ${dpkgz[${z}]} "${compressed}"
+                        break
+                    fi
+                done
+
+                if ! [[ -e data.tar ]]; then
+                    echo "unable to extract package" 1>&2
+                    exit 1
+                fi
+
+                ls -la data.tar
+                tar -xf ./data.tar
+                rm -f data.tar
             fi
 
             unset fields
-- 
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