Image creation runs under a fakeroot context and calls a script which refers 
to the build systems's python. This loads but can find a libpython from staging
if these are incompatible, anything can break. These scripts should *not* be
changing LD_LIBRARY_PATH, just adding an LD_PRELOAD with an absolute path. The
dyanmic linker can figure out anything else with rpaths.

RP - 23/1/10

Index: fakeroot-1.9.4/configure.ac
===================================================================
--- fakeroot-1.9.4.orig/configure.ac	2010-01-23 22:34:39.000000000 +0000
+++ fakeroot-1.9.4/configure.ac	2010-01-23 22:35:14.000000000 +0000
@@ -414,6 +414,8 @@
 		;;
 esac
 
+LDPRELOADABS=1
+
 AC_DEFINE_UNQUOTED([LIBCPATH], "$libcpath", [path to libc shared object])
 AC_SUBST(DLSUFFIX)
 AC_SUBST(LDLIBPATHVAR)
Index: fakeroot-1.9.4/scripts/fakeroot.in
===================================================================
--- fakeroot-1.9.4.orig/scripts/fakeroot.in	2010-01-23 22:34:53.000000000 +0000
+++ fakeroot-1.9.4/scripts/fakeroot.in	2010-01-23 22:37:17.000000000 +0000
@@ -135,7 +135,7 @@
 if [ "$WAITINTRAP" -eq 0 ]; then
   trap "kill -s @signal@ $PID" EXIT INT
 else
-  trap 'FAKEROOTKEY=$FAKEROOTKEY LD_LIBRARY_PATH="$PATHS"  LD_PRELOAD="$LIB" /bin/ls -l / >/dev/null 2>&1; while kill -s @signal@ $PID 2>/dev/null; do sleep 0.1; done' EXIT INT
+  trap 'FAKEROOTKEY=$FAKEROOTKEY LD_PRELOAD="$LIB" /bin/ls -l / >/dev/null 2>&1; while kill -s @signal@ $PID 2>/dev/null; do sleep 0.1; done' EXIT INT
 fi
 
 if test -z "$FAKEROOTKEY" || test -z "$PID"; then
@@ -158,10 +158,10 @@
 export FAKEROOT_FD_BASE
 
 if test -z "$*"; then
-  FAKEROOTKEY=$FAKEROOTKEY @LDLIBPATHVAR@="$PATHS" @LDEXTRAVAR@ @LDPRELOADVAR@="$LIB" ${SHELL:-/bin/sh}
+  FAKEROOTKEY=$FAKEROOTKEY @LDEXTRAVAR@ @LDPRELOADVAR@="$LIB" ${SHELL:-/bin/sh}
   RESULT=$?
 else
-  FAKEROOTKEY=$FAKEROOTKEY @LDLIBPATHVAR@="$PATHS" @LDEXTRAVAR@ @LDPRELOADVAR@="$LIB" "$@"
+  FAKEROOTKEY=$FAKEROOTKEY @LDEXTRAVAR@ @LDPRELOADVAR@="$LIB" "$@"
   RESULT=$?
 fi