bison: bump to version 2.4.3

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/bison/Config.in

@@ -1,8 +1,12 @@
 config BR2_PACKAGE_BISON
 	bool "bison"
+	depends on BR2_USE_WCHAR
 	help
 	  General-purpose parser generator that converts a
 	  grammar description for an LALR context-free grammar into a C
 	  program to parse that grammar.
 
 	  http://www.gnu.org/software/bison/
+
+comment "bison requires a toolchain with WCHAR support"
+	depends on !BR2_USE_WCHAR

package/bison/bison-2.4.3-uclibc-sched_param-def.patch

@@ -0,0 +1,19 @@
+uclibc defines __GLIBC__ but it does not expose struct shed_param as much as glibc
+and is not needed too per standard. gnulib attempts to use it but we have to account
+for it because in this case uclibc does not behave like glibc.
+
+-Khem
+
+http://bugs.gentoo.org/336484
+
+--- m4-1.4.14/lib/spawn.in.h
++++ m4-1.4.14/lib/spawn.in.h
+@@ -31,7 +31,7 @@
+ 
+ /* Get definitions of 'struct sched_param' and 'sigset_t'.
+    But avoid namespace pollution on glibc systems.  */
+-#ifndef __GLIBC__
++#if !defined __GLIBC__ || defined __UCLIBC__
+ # include <sched.h>
+ # include <signal.h>
+ #endif

package/bison/bison.mk

@@ -3,9 +3,9 @@
 # bison
 #
 #############################################################
-BISON_VERSION:=2.3
-BISON_SOURCE:=bison-$(BISON_VERSION).tar.bz2
-BISON_SITE:=$(BR2_GNU_MIRROR)/bison
+
+BISON_VERSION = 2.4.3
+BISON_SITE = $(BR2_GNU_MIRROR)/bison
 
 define BISON_DISABLE_EXAMPLES
 	echo 'all install:' > $(@D)/examples/Makefile