Added patch to improve symlink support by Michael Hordijk <hoffbrinkle@hotmail.com> for bug #143217.

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@459 67a159dc-881f-0410-a524-ba9dfbe2cb84

ChangeLog

@@ -2,6 +2,10 @@
 # Copyright 2006-2006 Gentoo Foundation; Distributed under the GPL v2
 # $Header: $
 
+  13 Nov 2006; Chris Gianelloni <wolf31o2@gentoo.org> genkernel:
+  Added patch to improve symlink support by Michael Hordijk
+  <hoffbrinkle@hotmail.com> for bug #143217.
+
   13 Nov 2006; Chris Gianelloni <wolf31o2@gentoo.org> generic/linuxrc:
   Added patch from Tim Steiner <tsteiner@nerdclub.net> to add a real_rootflags
   parameter for bug #122672.

genkernel

@@ -402,40 +402,56 @@ then
 	[ "${UNIONFS}" -eq '1' ] && print_info 1 '	or "unionfs=<block_device>"'
 fi
 
+
+symlinker() {
+	local base=$1
+	local fullVer=${KNAME}-${ARCH}-${KV}
+
+	local newThing=${BOOTDIR}/${base}-${fullVer}
+	local newSym=${BOOTDIR}/${base}
+	local oldSym=${newsym}.old
+
+	local prevLink
+	local ret=0
+
+	print_info 1 "	    creating ${base} name symlink!"
+	if [ -e ${newThing} ] ; then
+		if [ -L ${newSym} ] ; then
+			prevLink=`readlink --no-newline ${newSym}`
+			if [ ${prevLink} != ${newThing} ] ; then
+				if [ -L ${oldSym} ] ; then
+					rm ${oldSym}
+				fi
+				ln -s ${prevLink} ${oldSym}
+				[ $((ret += $?)) ]
+			fi
+			rm ${newSym}
+		fi
+		ln -s ${newThing} ${newSym}
+		[ $((ret += $?)) ]
+	fi
+	
+	if [[ ${ret} > 0 ]] ; then
+		print_error 1 "	    $base link failed: ${ret}"
+	fi
+
+	return ${ret}
+}
+
+
 if [ "${CMD_NOINSTALL}" != '1' -a "${SYMLINK}" = '1' ]
 then 
     echo
     print_info 1 'Creating symlinks'
     
     
-    print_info 1 '	    creating kernel name symlink!'
-    if [ -e ${BOOTDIR}/kernel-${KNAME}-${ARCH}-${KV} ]
-    then
-	/bin/rm ${BOOTDIR}/kernel
-        ln -s ${BOOTDIR}/kernel-${KNAME}-${ARCH}-${KV} ${BOOTDIR}/kernel
-        ret=$?
-        [ ${ret} = '1' ] && print_error 1 'kernel link failed'
-    fi
+	symlinker kernel
+	symlinker System.map 
 
-    if [ "${KERN_24}" != '1' -a  "${CMD_BOOTSPLASH}" != '1' ]
-    then
-	print_info 1 '	    creating initramfs name symlink!'
-	if [ -e ${BOOTDIR}/initramfs-${KNAME}-${ARCH}-${KV} ]
-	then
-	    /bin/rm ${BOOTDIR}/initramfs
-	    ln -s ${BOOTDIR}/initramfs-${KNAME}-${ARCH}-${KV} ${BOOTDIR}/initramfs
-	    ret=$?
-	    [ ${ret} = '1' ] && print_error 1 'initramfs link failed'
-	fi
+	if [ "${KERN_24}" != '1' -a  "${CMD_BOOTSPLASH}" != '1' ] ; then
+		symlinker initramfs
 	else
-	print_info 1 '	    creating initrd name symlink!'
-	if [ -e ${BOOTDIR}/initrd-${KNAME}-${ARCH}-${KV} ]
-	then
-	    /bin/rm ${BOOTDIR}/initrd
-	    ln -s ${BOOTDIR}/initrd-${KNAME}-${ARCH}-${KV} ${BOOTDIR}/initrd
-	    ret=$?
-	    [ ${ret} = '1' ] && print_error 1 'initrd link failed'
-	fi
+		symlinker initrd
     fi
 fi