diff --git a/sys-devel/bison/bison-2.4.1.recipe b/sys-devel/bison/bison-2.4.1.recipe
deleted file mode 100644
index ca29bc406..000000000
--- a/sys-devel/bison/bison-2.4.1.recipe
+++ /dev/null
@@ -1,28 +0,0 @@
-DESCRIPTION="bison - A yacc-compatible parser generator" 
-HOMEPAGE="http://www.gnu.org/software/bison/bison.html" 
-SRC_URI="http://ftp.gnu.org/gnu/bison/bison-2.4.1.tar.gz"
-CHECKSUM_MD5="c58aa1da418dc9704070872489e89bf5"
-REVISION="2"
-STATUS_HAIKU="stable"
-DEPEND=""
-BUILD()
-{
-	cd bison-2.4.1
-	./configure --prefix=`finddir B_COMMON_DIRECTORY` --disable-nls
-	make
-}
-
-INSTALL()
-{
-	cd bison-2.4.1
-	make install
-}
-
-TEST()
-{
-	cd bison-2.4.1
-	make check
-}
-
-LICENSE="GNU GPL v3"
-COPYRIGHT="1992-2008 Free Software Foundation, Inc."
diff --git a/sys-devel/bison/bison-2.4.recipe b/sys-devel/bison/bison-2.4.recipe
deleted file mode 100644
index 03195f317..000000000
--- a/sys-devel/bison/bison-2.4.recipe
+++ /dev/null
@@ -1,22 +0,0 @@
-DESCRIPTION="bison - A yacc-compatible parser generator" 
-HOMEPAGE="http://www.gnu.org/software/bison/bison.html" 
-SRC_URI="http://ftp.gnu.org/gnu/bison/bison-2.4.tar.gz"
-CHECKSUM_MD5="2b9b088b46271c7fa902a7e85f503e1e"
-REVISION="1"
-STATUS_HAIKU="stable"
-DEPEND=""
-BUILD()
-{
-	cd bison-2.4
-	./configure --prefix=`finddir B_COMMON_DIRECTORY` --disable-nls
-	make
-}
-
-INSTALL()
-{
-	cd bison-2.4
-	make install
-	make check
-}
-LICENSE="GNU GPL v3"
-COPYRIGHT="1992-2008 Free Software Foundation, Inc."
diff --git a/sys-devel/bison/patches/bison-2.4.1.patch b/sys-devel/bison/patches/bison-2.4.1.patch
deleted file mode 100644
index 2e2966269..000000000
--- a/sys-devel/bison/patches/bison-2.4.1.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-diff -ur bison-2.4.1.orig/src/location.c bison-2.4.1/src/location.c
---- bison-2.4.1.orig/src/location.c	2008-08-17 06:15:28.000000000 +0000
-+++ bison-2.4.1/src/location.c	2008-11-09 15:03:06.000000000 +0000
-@@ -121,11 +121,11 @@
-   /* Must search in reverse since the file name field may
-    * contain `.' or `:'.  */
-   char *delim = strrchr (loc_str, '.');
--  aver (delim);
-+  aver (delim != NULL);
-   *delim = '\0';
-   bound->column = atoi (delim+1);
-   delim = strrchr (loc_str, ':');
--  aver (delim);
-+  aver (delim != NULL);
-   *delim = '\0';
-   bound->line = atoi (delim+1);
-   bound->file = uniqstr_new (loc_str);
-diff -ur bison-2.4.1.orig/src/muscle_tab.c bison-2.4.1/src/muscle_tab.c
---- bison-2.4.1.orig/src/muscle_tab.c	2008-08-17 06:15:28.000000000 +0000
-+++ bison-2.4.1/src/muscle_tab.c	2008-11-09 15:11:17.000000000 +0000
-@@ -336,7 +336,7 @@
- {
-   location loc;
-   char const *value = muscle_find_const (key);
--  aver (value);
-+  aver (value != NULL);
-   aver (*value == '[');
-   aver (*++value == '[');
-   while (*++value)
diff --git a/sys-devel/bison/patches/bison-2.4.patch b/sys-devel/bison/patches/bison-2.4.patch
deleted file mode 100644
index 7f3e5377c..000000000
--- a/sys-devel/bison/patches/bison-2.4.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-diff -ur bison-2.4.orig/lib/config.charset bison-2.4/lib/config.charset
---- bison-2.4.orig/lib/config.charset	2008-11-02 21:59:28.000000000 +0000
-+++ bison-2.4/lib/config.charset	2008-11-09 14:56:56.000000000 +0000
-@@ -478,8 +478,8 @@
- 	# space nevertheless.
- 	echo "* UTF-8"
- 	;;
--    beos*)
--	# BeOS has a single locale, and it has UTF-8 encoding.
-+    beos*|haiku*)
-+	# BeOS has a single locale, and it has UTF-8 encoding. Same for Haiku.
- 	echo "* UTF-8"
- 	;;
-     msdosdjgpp*)
-diff -ur bison-2.4.orig/src/location.c bison-2.4/src/location.c
---- bison-2.4.orig/src/location.c	2008-08-17 06:15:28.000000000 +0000
-+++ bison-2.4/src/location.c	2008-11-09 15:03:06.000000000 +0000
-@@ -121,11 +121,11 @@
-   /* Must search in reverse since the file name field may
-    * contain `.' or `:'.  */
-   char *delim = strrchr (loc_str, '.');
--  aver (delim);
-+  aver (delim != NULL);
-   *delim = '\0';
-   bound->column = atoi (delim+1);
-   delim = strrchr (loc_str, ':');
--  aver (delim);
-+  aver (delim != NULL);
-   *delim = '\0';
-   bound->line = atoi (delim+1);
-   bound->file = uniqstr_new (loc_str);
-diff -ur bison-2.4.orig/src/muscle_tab.c bison-2.4/src/muscle_tab.c
---- bison-2.4.orig/src/muscle_tab.c	2008-08-17 06:15:28.000000000 +0000
-+++ bison-2.4/src/muscle_tab.c	2008-11-09 15:11:17.000000000 +0000
-@@ -336,7 +336,7 @@
- {
-   location loc;
-   char const *value = muscle_find_const (key);
--  aver (value);
-+  aver (value != NULL);
-   aver (*value == '[');
-   aver (*++value == '[');
-   while (*++value)