diff --git a/historic/jam/src/yyacc b/historic/jam/src/yyacc
deleted file mode 100644
index 5bc7f3e9c..000000000
--- a/historic/jam/src/yyacc
+++ /dev/null
@@ -1,91 +0,0 @@
-#!/bin/sh
-
-# yyacc - yacc wrapper
-#
-# Allows tokens to be written as `literal` and then automatically 
-# substituted with #defined tokens.
-#
-# Usage:
-#	yyacc file.y filetab.h file.yy 
-#
-# inputs:
-#	file.yy		yacc grammar with ` literals
-#
-# outputs:
-#	file.y		yacc grammar
-#	filetab.h	array of string <-> token mappings
-#
-# 3-13-93
-#	Documented and p moved in sed command (for some reason,
-#	s/x/y/p doesn't work).
-# 10-12-93
-#	Take basename as second argument.
-# 12-31-96
-#	reversed order of args to be compatible with GenFile rule
-
-outy=${1?}
-outh=${2?}
-in=${3?}
-out=`basename $in .yy`
-
-T=/tmp/yy$$
-trap 'rm -f $T.*' 0
-
-sed '
-	: 1
-	/`/{
-		h
-		s/[^`]*`\([^`]*\)`.*/\1/
-		p
-		g
-		s/[^`]*`[^`]*`//
-		b 1
-	}
-	d
-' $in | sort -u | sed '
-	h
-	y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/
-	s/:/_COLON/
-	s/!/_BANG/
-	s/&&/_AMPERAMPER/
-	s/&/_AMPER/
-	s/+/_PLUS/
-	s/||/_BARBAR/
-	s/|/_BAR/
-	s/;/_SEMIC/
-	s/-/_MINUS/
-	s/</_LANGLE/
-	s/>/_RANGLE/
-	s/\./_PERIOD/
-	s/?/_QUESTION/
-	s/=/_EQUALS/
-	s/,/_COMMA/
-	s/\[/_LBRACKET/
-	s/]/_RBRACKET/
-	s/{/_LBRACE/
-	s/}/_RBRACE/
-	s/(/_LPAREN/
-	s/)/_RPAREN/
-	s/FILE/_FILE_/
-	G
-	s/\n/ /
-' > $T.1
-
-sed '
-	s:^\(.*\) \(.*\)$:s/`\2`/\1/g:
-	s:\.:\\.:g
-	s:\[:\\[:g
-' $T.1 > $T.s
-
-rm -f $outy $outh
-
-(
-	sed 's:^\(.*\) \(.*\)$:%token \1:' $T.1
-	sed -f $T.s $in
-) > $outy
-
-(
-	sed 's:^\(.*\) \(.*\)$:	{ "\2", \1 },:' $T.1 
-) > $outh
-
-
diff --git a/jam_src/yyacc b/jam_src/yyacc
deleted file mode 100644
index 5bc7f3e9c..000000000
--- a/jam_src/yyacc
+++ /dev/null
@@ -1,91 +0,0 @@
-#!/bin/sh
-
-# yyacc - yacc wrapper
-#
-# Allows tokens to be written as `literal` and then automatically 
-# substituted with #defined tokens.
-#
-# Usage:
-#	yyacc file.y filetab.h file.yy 
-#
-# inputs:
-#	file.yy		yacc grammar with ` literals
-#
-# outputs:
-#	file.y		yacc grammar
-#	filetab.h	array of string <-> token mappings
-#
-# 3-13-93
-#	Documented and p moved in sed command (for some reason,
-#	s/x/y/p doesn't work).
-# 10-12-93
-#	Take basename as second argument.
-# 12-31-96
-#	reversed order of args to be compatible with GenFile rule
-
-outy=${1?}
-outh=${2?}
-in=${3?}
-out=`basename $in .yy`
-
-T=/tmp/yy$$
-trap 'rm -f $T.*' 0
-
-sed '
-	: 1
-	/`/{
-		h
-		s/[^`]*`\([^`]*\)`.*/\1/
-		p
-		g
-		s/[^`]*`[^`]*`//
-		b 1
-	}
-	d
-' $in | sort -u | sed '
-	h
-	y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/
-	s/:/_COLON/
-	s/!/_BANG/
-	s/&&/_AMPERAMPER/
-	s/&/_AMPER/
-	s/+/_PLUS/
-	s/||/_BARBAR/
-	s/|/_BAR/
-	s/;/_SEMIC/
-	s/-/_MINUS/
-	s/</_LANGLE/
-	s/>/_RANGLE/
-	s/\./_PERIOD/
-	s/?/_QUESTION/
-	s/=/_EQUALS/
-	s/,/_COMMA/
-	s/\[/_LBRACKET/
-	s/]/_RBRACKET/
-	s/{/_LBRACE/
-	s/}/_RBRACE/
-	s/(/_LPAREN/
-	s/)/_RPAREN/
-	s/FILE/_FILE_/
-	G
-	s/\n/ /
-' > $T.1
-
-sed '
-	s:^\(.*\) \(.*\)$:s/`\2`/\1/g:
-	s:\.:\\.:g
-	s:\[:\\[:g
-' $T.1 > $T.s
-
-rm -f $outy $outh
-
-(
-	sed 's:^\(.*\) \(.*\)$:%token \1:' $T.1
-	sed -f $T.s $in
-) > $outy
-
-(
-	sed 's:^\(.*\) \(.*\)$:	{ "\2", \1 },:' $T.1 
-) > $outh
-
-