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src/minimal_overlay/bundles/ncurses/01_get.sh

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+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+# Grab everything after the '=' character.
+DOWNLOAD_URL=$(grep -i NCURSES_SOURCE_URL $MAIN_SRC_DIR/.config | cut -f2 -d'=')
+
+# Grab everything after the last '/' character.
+ARCHIVE_FILE=${DOWNLOAD_URL##*/}
+
+# Read the 'USE_LOCAL_SOURCE' property from '.config'
+USE_LOCAL_SOURCE="$(grep -i USE_LOCAL_SOURCE $MAIN_SRC_DIR/.config | cut -f2 -d'=')"
+
+if [ "$USE_LOCAL_SOURCE" = "true" -a ! -f $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE  ] ; then
+  echo "Source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE is missing and will be downloaded."
+  USE_LOCAL_SOURCE="false"
+fi
+
+cd $MAIN_SRC_DIR/source/overlay
+
+if [ ! "$USE_LOCAL_SOURCE" = "true" ] ; then
+  # Downloading ncurses source bundle file. The '-c' option allows the download to resume.
+  echo "Downloading ncurses source bundle from $DOWNLOAD_URL"
+  wget -c $DOWNLOAD_URL
+else
+  echo "Using local ncurses source bundle $MAIN_SRC_DIR/source/overlay/$ARCHIVE_FILE"
+fi
+
+# Delete folder with previously extracted ncurses.
+echo "Removing ncurses work area. This may take a while..."
+rm -rf $WORK_DIR/overlay/ncurses
+mkdir $WORK_DIR/overlay/ncurses
+
+# Extract ncurses to folder 'work/overlay/ncurses'.
+# Full path will be something like 'work/overlay/ncurses/ncurses-6.0'.
+tar -xvf $ARCHIVE_FILE -C $WORK_DIR/overlay/ncurses
+
+cd $SRC_DIR

src/minimal_overlay/bundles/ncurses/02_build.sh

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+#!/bin/bash
+
+SRC_DIR=$(pwd)
+
+. ../../common.sh
+
+cd $WORK_DIR/overlay/ncurses
+
+DESTDIR="$PWD/ncurses_installed"
+
+# Change to the ncurses source directory which ls finds, e.g. 'ncurses-6.0'.
+cd $(ls -d ncurses-*)
+
+echo "Preparing ncurses work area. This may take a while..."
+make -j $NUM_JOBS clean
+
+rm -rf $DESTDIR
+
+# Remove static library
+sed -i '/LIBTOOL_INSTALL/d' c++/Makefile.in
+# http://www.linuxfromscratch.org/lfs/view/development/chapter06/ncurses.html
+
+# Configure Ncurses
+echo "Configuring Ncurses..."
+./configure \
+    --prefix=/usr \
+    --with-termlib \
+    --with-shared \
+    --with-terminfo-dirs=/lib/terminfo \
+    --with-default-terminfo-dirs=/lib/terminfo \
+    --without-normal \
+    --without-debug \
+    --without-cxx-binding \
+    --with-abi-version=5 \
+    CFLAGS="-Os -s -fno-stack-protector -U_FORTIFY_SOURCE" \
+    CPPFLAGS="-P"
+
+# Most configuration switches are from AwlsomeAlex
+# https://github.com/AwlsomeAlex/AwlsomeLinux/blob/59d59730703b058081a2371076a807590cacb31e/src/overlay_ncurses.sh
+
+# CPPFLAGS fixes a bug with Ubuntu 16.04
+# https://trac.sagemath.org/ticket/19762
+
+echo "Building ncurses..."
+make -j $NUM_JOBS
+
+echo "Installing ncurses..."
+make -j $NUM_JOBS install DESTDIR=$DESTDIR
+
+echo "Reducing ncurses size..."
+strip -g $DESTDIR/usr/bin/*
+
+ROOTFS="$WORK_DIR/src/minimal_overlay/rootfs"
+
+cp -r $DESTDIR/usr/* $ROOTFS
+
+echo "ncurses has been installed."
+
+cd $SRC_DIR
+

src/minimal_overlay/bundles/ncurses/bundle.sh

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+#!/bin/sh
+
+SRC_DIR=$(pwd)
+
+time sh 01_get.sh
+time sh 02_build.sh
+
+cd $SRC_DIR
+