ncurses: build ncursesw for UTF-8 support

- update to 6.3
- Update patches 001 (terminfo xterm) and 002 (alloc fallback)
- add patch 003: fix USE_SCROLL_HINTS/USE_HASHMAP logic
- add patch 004: fix configure option --with-pkg-config-libdir is broken for
  cross compilation
- Add symbolic links of ncursesw to common ncurses lib and header files to allow
  all packages to be build.

packages/devel/ncurses/package.mk

@@ -3,15 +3,14 @@
 # Copyright (C) 2017-present Team LibreELEC (https://libreelec.tv)
 
 PKG_NAME="ncurses"
-PKG_VERSION="6.1-20181215"
+PKG_VERSION="6.3"
-PKG_SHA256="08b07c3e792961f300829512c283d5fefc0b1c421a57b76922c3d13303ed677d"
+PKG_SHA256="97fc51ac2b085d4cde31ef4d2c3122c21abc217e9090a43a30fc5ec21684e059"
 PKG_LICENSE="MIT"
 PKG_SITE="http://www.gnu.org/software/ncurses/"
-PKG_URL="http://invisible-mirror.net/archives/ncurses/current/ncurses-${PKG_VERSION}.tgz"
+PKG_URL="http://invisible-mirror.net/archives/ncurses/ncurses-${PKG_VERSION}.tar.gz"
 PKG_DEPENDS_HOST="ccache:host"
 PKG_DEPENDS_TARGET="toolchain zlib ncurses:host"
 PKG_LONGDESC="A library is a free software emulation of curses in System V Release 4.0, and more."
-# causes some segmentation fault's (dialog) when compiled with gcc's link time optimization.
 PKG_BUILD_FLAGS="+pic"
 
 PKG_CONFIGURE_OPTS_TARGET="--without-ada \
@@ -54,11 +53,12 @@ PKG_CONFIGURE_OPTS_TARGET="--without-ada \
                            --disable-hashmap \
                            --disable-safe-sprintf \
                            --disable-scroll-hints \
-                           --disable-widec \
+                           --enable-widec \
                            --disable-echo \
                            --disable-warnings \
                            --disable-home-terminfo \
-                           --disable-assertions"
+                           --disable-assertions \
+                           --enable-leaks"
 
 PKG_CONFIGURE_OPTS_HOST="--enable-termcap \
                          --with-termlib \
@@ -67,9 +67,17 @@ PKG_CONFIGURE_OPTS_HOST="--enable-termcap \
                          --without-manpages"
 
 post_makeinstall_target() {
+  local f
   cp misc/ncurses-config ${TOOLCHAIN}/bin
   chmod +x ${TOOLCHAIN}/bin/ncurses-config
   sed -e "s:\(['=\" ]\)/usr:\\1${PKG_ORIG_SYSROOT_PREFIX}/usr:g" -i ${TOOLCHAIN}/bin/ncurses-config
   rm -f ${TOOLCHAIN}/bin/ncurses6-config
   rm -rf ${INSTALL}/usr/bin
+  # create links to be compatible with any ncurses include path and lib names
+  ln -sf . ${SYSROOT_PREFIX}/usr/include/ncursesw
+  ln -sf . ${SYSROOT_PREFIX}/usr/include/ncurses
+  for f in form menu ncurses panel; do
+    ln -sf lib${f}w.a ${SYSROOT_PREFIX}/usr/lib/lib${f}.a
+    ln -sf ${f}w.pc ${SYSROOT_PREFIX}/usr/lib/pkgconfig/${f}.pc
+  done
 }

packages/devel/ncurses/patches/ncurses-001-terminfo-xterm.patch

@@ -1,16 +1,16 @@
 
 Remove recent xterm terminfo features to be compatible with other emulations
 
---- a/misc/terminfo.src	2018-12-21 18:53:11.000000000 +0100
+--- a/misc/terminfo.src	2021-03-20 22:45:39.000000000 +0100
-+++ a/misc/terminfo.src	2018-12-22 22:56:47.000000000 +0100
++++ b/misc/terminfo.src	2021-06-01 23:53:10.335516419 +0200
-@@ -4335,8 +4335,8 @@ xterm-xfree86|xterm terminal emulator (X
+@@ -4808,8 +4808,8 @@ xterm-xfree86|xterm terminal emulator (X
- xterm-new|modern xterm terminal emulator,
+ xterm+nofkeys|building block for xterm fkey-variants,
  	npc,
- 	indn=\E[%p1%dS, kb2=\EOE, kcbt=\E[Z, kent=\EOM,
+ 	kcbt=\E[Z, kent=\EOM, nel=\EE, use=ecma+index,
--	rin=\E[%p1%dT, use=ansi+rep, use=ecma+strikeout,
+-	use=ansi+rep, use=ecma+strikeout, use=vt420+lrmm,
--	use=xterm+sm+1006, use=xterm+pcfkeys, use=xterm+tmux,
+-	use=xterm+sm+1006, use=xterm+tmux, use=ecma+italics,
-+	rin=\E[%p1%dT, use=ecma+strikeout,
++	use=ecma+strikeout, use=vt420+lrmm,
-+	use=xterm+sm+1005, use=xterm+pcfkeys, use=xterm+tmux,
++	use=xterm+sm+1005, use=xterm+tmux, use=ecma+italics,
- 	use=xterm-basic,
+ 	use=xterm+keypad, use=xterm-basic,
  
- # This fragment is for people who cannot agree on what the backspace key
+ # This version reflects the current xterm features.

packages/devel/ncurses/patches/ncurses-002-alloc-fallbacks.patch

@@ -1,19 +1,8 @@
 Fix freeing not allocated fallback entries by allocating a copy.
 
---- a/ncurses/tinfo/lib_setup.c	2018-11-24 23:13:16.000000000 +0100
-+++ b/ncurses/tinfo/lib_setup.c	2018-12-29 10:31:01.000000000 +0100
-@@ -756,6 +756,8 @@ TINFO_SETUP_TERM(TERMINAL **tp,
- 	if (status != TGETENT_YES) {
- 	    const TERMTYPE2 *fallback = _nc_fallback2(tname);
- 
-+	    if (fallback)
-+		fallback = _nc_copy_entry(fallback);
- 	    if (fallback) {
- 		T(("found fallback entry"));
- 		TerminalType(termp) = *fallback;
 --- a/ncurses/tinfo/tinfo_driver.c	2018-11-24 23:17:03.000000000 +0100
 +++ b/ncurses/tinfo/tinfo_driver.c	2018-12-29 10:27:19.000000000 +0100
-@@ -172,6 +172,8 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * T
+@@ -180,6 +180,8 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * T
      if (status != TGETENT_YES) {
  	const TERMTYPE2 *fallback = _nc_fallback2(tname);
  

packages/devel/ncurses/patches/ncurses-003-fix_hints.patch

@@ -0,0 +1,18 @@
+Fix USE_SCROLL_HINTS/USE_HASHMAP logic
+
+--- a/ncurses/curses.priv.h	2018-12-16 02:16:58.000000000 +0100
++++ a/ncurses/curses.priv.h	2021-05-30 00:12:14.086528124 +0200
+@@ -258,10 +258,9 @@ extern NCURSES_EXPORT(void *) _nc_memmov
+ /*
+  * Scroll hints are useless when hashmap is used
+  */
+-#if !USE_SCROLL_HINTS
+-#if !USE_HASHMAP
+-#define USE_SCROLL_HINTS 1
+-#else
++#if USE_SCROLL_HINTS
++#if USE_HASHMAP
++#undef USE_SCROLL_HINTS
+ #define USE_SCROLL_HINTS 0
+ #endif
+ #endif

packages/devel/ncurses/patches/ncurses-004-fix_configure_pkgconfig.patch

@@ -0,0 +1,13 @@
+Fix configure option --with-pkg-config-libdir is broken for cross compilation
+
+--- a/configure	2021-10-17 17:12:23.000000000 +0200
++++ b/configure	2021-11-26 00:27:00.224815736 +0100
+@@ -4229,7 +4229,7 @@ echo $ECHO_N "checking for first directo
+ cf_pkg_config_path=none
+ for cf_config in $cf_search_path
+ do
+-	if test -d "$cf_config"
++	if test -n "$cf_config"
+ 	then
+ 		cf_pkg_config_path=$cf_config
+ 		break