add zstd and ncurses packages (#14)

ncurses/build.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+set -e
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
+cd "$DIR"
+
+VERSION="6.5"
+INSTALL_DIR="$DIR/ncurses/install"
+
+# Idempotent: skip if already built
+if [ -f "$INSTALL_DIR/lib/libncurses.a" ]; then
+  echo "ncurses already present, skipping build."
+  exit 0
+fi
+
+NJOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 2)"
+
+# Download
+TARBALL="ncurses-${VERSION}.tar.gz"
+if [ ! -f "$TARBALL" ]; then
+  curl -fsSL "https://ftp.gnu.org/gnu/ncurses/${TARBALL}" -o "$TARBALL"
+fi
+
+# Extract
+if [ ! -d "ncurses-${VERSION}" ]; then
+  tar xf "$TARBALL"
+fi
+
+# Build
+PREFIX="$DIR/build/prefix"
+mkdir -p "$DIR/build"
+
+cd "ncurses-${VERSION}"
+./configure \
+  --prefix="$PREFIX" \
+  --without-shared \
+  --with-normal \
+  --without-debug \
+  --without-cxx \
+  --without-cxx-binding \
+  --without-ada \
+  --without-manpages \
+  --without-progs \
+  --without-tests \
+  --without-dlsym \
+  --enable-overwrite
+
+make -j"$NJOBS"
+# Only install libs and headers; skip terminfo database (fails on macOS CI)
+make install.libs install.includes
+cd "$DIR"
+
+# Copy to package install dir
+rm -rf "$INSTALL_DIR"
+mkdir -p "$INSTALL_DIR"/{lib,include}
+
+# Libraries (ncurses 6.x builds wide-char by default; provide as libncurses.a)
+cp "$PREFIX/lib/libncursesw.a" "$INSTALL_DIR/lib/libncurses.a" 2>/dev/null \
+  || cp "$PREFIX/lib/libncurses.a" "$INSTALL_DIR/lib/"
+
+# Headers (--enable-overwrite puts them directly in include/)
+cp "$PREFIX/include/ncurses.h" "$INSTALL_DIR/include/"
+cp "$PREFIX/include/curses.h" "$INSTALL_DIR/include/"
+cp "$PREFIX/include/ncurses_dll.h" "$INSTALL_DIR/include/"
+cp "$PREFIX/include/unctrl.h" "$INSTALL_DIR/include/"
+cp "$PREFIX/include/term.h" "$INSTALL_DIR/include/"
+cp "$PREFIX/include/termcap.h" "$INSTALL_DIR/include/"
+
+# Clean up
+rm -rf "ncurses-${VERSION}" "$TARBALL" "$DIR/build"
+
+echo "Installed ncurses to $INSTALL_DIR"
+du -sh "$INSTALL_DIR"