Added Uninstaller

distrib/MacOS/GHC-system.pmdoc/index.xml

-<pkmkdoc spec="1.12"><properties><title>Glasgow Haskell Compiler</title><build>/Users/chak/Desktop/Glasgow Haskell Compiler.pkg</build><organization>org.haskell</organization><userSees ui="easy"/><min-target os="3"/><domain system="true"/></properties><distribution><versions min-spec="1.000000"/><scripts></scripts></distribution><description>The Glasgow Haskell Compiler (GHC) is a state-of-the-art, open source, compiler and interactive environment for the functional language Haskell.  GHC supports the entire Haskell 98 language plus a wide variety of extensions.  GHC generates fast code, is available on a range of platforms, and includes an extensive set of libraries.  For more information, please consult &lt;http://haskell.org/ghc>.</description><contents><choice title="GHC" id="choice0" starts_selected="true" starts_enabled="true" starts_hidden="false"><pkgref id="org.haskell.glasgowHaskellCompiler.ghc.pkg"/><choice-reqs><requirement id="file" operator="eq" value="true" selected="no" enabled="no" hidden="unchanged" startSelected="unchanged" startEnabled="unchanged" startHidden="unchanged"><file>/usr/bin/gcc</file></requirement></choice-reqs></choice></contents><resources bg-scale="none" bg-align="center"><locale lang="en"><resource relative="true" mod="true" type="background">lambda-logo.png</resource><resource relative="true" mod="true" type="license">../../LICENSE</resource><resource mime-type="text/rtf" kind="embedded" type="welcome"><![CDATA[{\rtf1\ansi\ansicpg1252\cocoartf949
+<pkmkdoc spec="1.12"><properties><title>Glasgow Haskell Compiler</title><build>/Users/chak/Desktop/Glasgow Haskell Compiler.pkg</build><organization>org.haskell</organization><userSees ui="easy"/><min-target os="3"/><domain system="true"/></properties><distribution><versions min-spec="1.000000"/><scripts></scripts></distribution><description>The Glasgow Haskell Compiler (GHC) is a state-of-the-art, open source, compiler and interactive environment for the functional language Haskell.  GHC supports the entire Haskell 98 language plus a wide variety of extensions.  GHC generates fast code, is available on a range of platforms, and includes an extensive set of libraries.  For more information, please consult &lt;http://haskell.org/ghc>.</description><contents><choice title="GHC" id="choice0" starts_selected="true" starts_enabled="true" starts_hidden="false"><pkgref id="org.haskell.glasgowHaskellCompiler.ghc.pkg"/><pkgref id="org.haskell.glasgowHaskellCompiler.uninstaller.pkg"/><choice-reqs><requirement id="file" operator="eq" value="true" selected="no" enabled="no" hidden="unchanged" startSelected="unchanged" startEnabled="unchanged" startHidden="unchanged"><file>/usr/bin/gcc</file></requirement></choice-reqs></choice></contents><resources bg-scale="none" bg-align="center"><locale lang="en"><resource relative="true" mod="true" type="background">lambda-logo.png</resource><resource relative="true" mod="true" type="license">../../LICENSE</resource><resource mime-type="text/rtf" kind="embedded" type="welcome"><![CDATA[{\rtf1\ansi\ansicpg1252\cocoartf949
 {\fonttbl\f0\fnil\fcharset0 LucidaGrande;}
 {\colortbl;\red255\green255\blue255;}
 \pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\ql\qnatural\pardirnatural
@@ -20,4 +20,8 @@ Xcode can be installed off your Mac OS X installation DVD or be downloaded from
 \
 Extensive documentation is available online at\
 \
-  http://haskell.org/haskellwiki/GHC}]]></resource></locale></resources><flags/><item type="file">01ghc.xml</item><mod>properties.userDomain</mod><mod>properties.title</mod><mod>description</mod><mod>properties.systemDomain</mod><mod>properties.anywhereDomain</mod></pkmkdoc>
\ No newline at end of file
+  http://haskell.org/haskellwiki/GHC\
+\
+To uninstall, execute\
+\
+  /Library/Frameworks/GHC.framework/Tools/Uninstaller}]]></resource></locale></resources><flags/><item type="file">01ghc.xml</item><item type="file">02uninstaller.xml</item><mod>properties.userDomain</mod><mod>properties.title</mod><mod>description</mod><mod>properties.systemDomain</mod><mod>properties.anywhereDomain</mod></pkmkdoc>
\ No newline at end of file

distrib/MacOS/installer-scripts/Uninstaller

+#!/bin/sh
+
+# Uninstaller script for GHC.framework 
+# (currently only for system volume installations)
+
+INSTALL_DEST=/Library/Frameworks
+INSTALL_BASE=/
+if [ ${INSTALL_BASE} = / ]; then
+  INSTALL_BIN=/usr/bin
+else
+  INSTALL_BIN=${INSTALL_BASE}/bin
+fi
+
+if [ ! -x ${INSTALL_DEST}/GHC.framework ]; then
+  echo "${INSTALL_DEST}/GHC.framework does not exit"
+  exit 1
+fi
+
+if [ ${USER} != root ]; then
+  echo "GHC.framework installer must be run with admin privileges"
+  echo "Prefix command by 'sudo'"
+  exit 1
+fi
+
+VERSIONS=(`ls ${INSTALL_DEST}/GHC.framework/Versions`)
+NO_VERSIONS=${#VERSIONS[@]}
+
+if [ ${VERSIONS[${NO_VERSIONS}-1]} != Current ]; then
+  echo "Fatal error: last version should be Current"
+  echo "Found versions: ${VERSIONS[@]}"
+  exit 1
+fi
+CURRENT_PHYS=`cd /Library/Frameworks/GHC.framework/Versions/Current; pwd -P`
+CURRENT=`basename ${CURRENT_PHYS}`
+
+if [ ${NO_VERSIONS} -ne 2 ]; then
+  echo "Multiple versions of GHC.framework are currently installed."
+  echo "This uninstaller removes GHC.framework entirely and should only"
+  echo "be used if there is exactly one version."
+  echo
+  echo "To remove individual old versions, simply delete the directory"
+  echo "${INSTALL_DEST}/GHC.framework/Versions/VERSION_TO_REMOVE"
+  echo
+  echo "Found versions: ${VERSIONS[@]}(= ${CURRENT})"
+  exit 1
+fi
+
+echo "Removing symbolic links into GHC.framework"
+for thisfile in `ls ${INSTALL_BIN}`; do
+  if ls -l ${INSTALL_BIN}/${thisfile} | grep -q GHC.framework/Versions; then
+    rm -f ${INSTALL_BIN}/${thisfile}
+  fi
+done
+
+echo "Removing ${INSTALL_DEST}/GHC.framework"
+rm -rf ${INSTALL_DEST}/GHC.framework
+
+echo "Removing package recipts"
+rm -f /Library/Receipts/boms/org.haskell.glasgowHaskellCompiler.ghc.pkg.bom
+rm -f /Library/Receipts/boms/org.haskell.glasgowHaskellCompiler.uninstaller.pkg
+
+echo "${INSTALL_DEST}/GHC.framework has been purged!"

distrib/MacOS/installer-scripts/create-links

@@ -7,7 +7,7 @@ INSTALL_DEST=$2
 INSTALL_BASE=$3
 
 if [ ${INSTALL_BASE} = / ]; then
-  INSTALL_BIN=${INSTALL_BASE}/usr/bin/
+  INSTALL_BIN=/usr/bin/
 else
   INSTALL_BIN=${INSTALL_BASE}/bin/
 fi