--- a/tools/codesighs/autosummary.unix.bash
+++ b/tools/codesighs/autosummary.unix.bash
@@ -45,16 +45,24 @@
 if [ "$1" = "-o" ]; then 
 OBJROOT="$2"
 shift
 shift
 else
 OBJROOT="./mozilla"
 fi
 
+if [ "$1" = "-s" ]; then 
+SRCROOT="$2"
+shift
+shift
+else
+SRCROOT="./mozilla"
+fi
+
 #
 #   A little help for my friends.
 #
 if [ "-h" == "$1" ];then 
     SHOWHELP="1"
 fi
 if [ "--help" == "$1" ];then 
     SHOWHELP="1"
@@ -161,30 +169,30 @@ else
     USE_READELF=
   fi
 fi
 fi
 
 RAWTSVFILE="$MYTMPDIR/raw.tsv"
 if test "$USE_READELF"; then
 export READELF_PROG
-xargs -n 1 ./mozilla/tools/codesighs/readelf_wrap.pl < $ALLFILES > $RAWTSVFILE 2> /dev/null
+xargs -n 1 $SRCROOT/tools/codesighs/readelf_wrap.pl < $ALLFILES > $RAWTSVFILE 2> /dev/null
 else
 
 #
 #   Produce the cumulative nm output.
 #   We are very particular on what switches to use.
 #   nm --format=bsd --size-sort --print-file-name --demangle
 #
 #   Darwin (Mac OS X) has a lame nm that we have to wrap in a perl
 #   script to get decent output.
 #
 NMRESULTS="$MYTMPDIR/nm.txt"
 if [ $OSTYPE == "Darwin" ]; then
-xargs -n 1 ./mozilla/tools/codesighs/nm_wrap_osx.pl < $ALLFILES  > $NMRESULTS 2> /dev/null
+xargs -n 1 $SRCROOT/tools/codesighs/nm_wrap_osx.pl < $ALLFILES  > $NMRESULTS 2> /dev/null
 else
 xargs -n 1 nm --format=bsd --size-sort --print-file-name --demangle < $ALLFILES > $NMRESULTS 2> /dev/null
 fi
 
 
 #
 #   Produce the TSV output.
 #

--- a/tools/codesighs/autosummary.win.bash
+++ b/tools/codesighs/autosummary.win.bash
@@ -44,16 +44,24 @@
 if [ "$1" = "-o" ]; then 
 OBJROOT="$2"
 shift
 shift
 else
 OBJROOT="./mozilla"
 fi
 
+if [ "$1" = "-s" ]; then 
+SRCROOT="$2"
+shift
+shift
+else
+SRCROOT="./mozilla"
+fi
+
 #
 #   A little help for my friends.
 #
 if [ "-h" == "$1" ];then 
     SHOWHELP="1"
 fi
 if [ "--help" == "$1" ];then 
     SHOWHELP="1"