Revert "ncurses: Remove obsolete compile fixes"

This reverts commit 4fb684a755.

The compile fixes are still required for host systems using GCC 5.x,
such as Ubuntu 16.04 LTS.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

package/libs/ncurses/patches/102-ncurses-5.9-gcc-5.patch

@@ -0,0 +1,44 @@
+https://bugs.gentoo.org/545114
+
+extracted from the upstream change (which had many unrelated commits in one)
+
+From 97bb4678dc03e753290b39bbff30ba2825df9517 Mon Sep 17 00:00:00 2001
+From: "Thomas E. Dickey" <dickey@invisible-island.net>
+Date: Sun, 7 Dec 2014 03:10:09 +0000
+Subject: [PATCH] ncurses 5.9 - patch 20141206
+
++ modify MKlib_gen.sh to work around change in development version of
+  gcc introduced here:
+	  https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
+	  https://gcc.gnu.org/ml/gcc-patches/2014-07/msg00236.html
+  (reports by Marcus Shawcroft, Maohui Lei).
+
+--- a/ncurses/base/MKlib_gen.sh
++++ b/ncurses/base/MKlib_gen.sh
+@@ -505,11 +505,22 @@ sed -n -f $ED1 \
+ 	-e 's/gen_$//' \
+ 	-e 's/  / /g' >>$TMP
+ 
++cat >$ED1 <<EOF
++s/  / /g
++s/^ //
++s/ $//
++s/P_NCURSES_BOOL/NCURSES_BOOL/g
++EOF
++
++# A patch discussed here:
++#	https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
++# introduces spurious #line markers.  Work around that by ignoring the system's
++# attempt to define "bool" and using our own symbol here.
++sed -e 's/bool/P_NCURSES_BOOL/g' $TMP > $ED2
++cat $ED2 >$TMP
++
+ $preprocessor $TMP 2>/dev/null \
+-| sed \
+-	-e 's/  / /g' \
+-	-e 's/^ //' \
+-	-e 's/_Bool/NCURSES_BOOL/g' \
++| sed -f $ED1 \
+ | $AWK -f $AW2 \
+ | sed -f $ED3 \
+ | sed \

package/libs/ncurses/patches/200-fix_missing_include.patch

@@ -0,0 +1,14 @@
+--- a/ncurses/curses.priv.h
++++ b/ncurses/curses.priv.h
+@@ -55,6 +55,11 @@ extern "C" {
+ 
+ #include <ncurses_cfg.h>
+ 
++#if NEED_WCHAR_H
++#include <stdarg.h>
++#include <wchar.h>
++#endif
++
+ #if USE_RCS_IDS
+ #define MODULE_ID(id) static const char Ident[] = id;
+ #else