Added statically linked binary generator script

.gitignore

@@ -18,3 +18,5 @@ ncdu
 ncdu.1
 *~
 *.swp
+static/*
+!static/build.sh

static/build.sh

+#!/bin/sh
+
+# This script is based on static/build.sh from the ncdc git repo.
+# Only i486 and arm arches are supported. i486 should perform well enough, so
+# x86_64 isn't really necessary. I can't test any other arches.
+
+
+MUSL_VERSION=0.9.9
+NCURSES_VERSION=5.9
+
+export CFLAGS="-O3 -g -static"
+
+# (The variables below are automatically set by the functions, they're defined
+# here to make sure they have global scope and for documentation purposes.)
+
+# This is the arch we're compiling for, e.g. arm/mipsel.
+TARGET=
+# This is the name of the toolchain we're using, and thus the value we should
+# pass to autoconf's --host argument.
+HOST=
+# Installation prefix.
+PREFIX=
+# Path of the extracted source code of the package we're currently building.
+srcdir=
+
+mkdir -p tarballs
+
+
+# "Fetch, Extract, Move"
+fem() { # base-url name targerdir extractdir 
+  echo "====== Fetching and extracting $1 $2"
+  cd tarballs
+  if [ -n "$4" ]; then
+    EDIR="$4"
+  else
+    EDIR=$(basename $(basename $(basename $2 .tar.bz2) .tar.gz) .tar.xz)
+  fi
+  if [ ! -e "$2" ]; then
+    wget "$1$2" || exit
+  fi
+  if [ ! -d "$3" ]; then
+    tar -xvf "$2" || exit
+    mv "$EDIR" "$3"
+  fi
+  cd ..
+}
+
+
+prebuild() { # dirname
+  if [ -e "$TARGET/$1/_built" ]; then
+    echo "====== Skipping build for $TARGET/$1 (assumed to be done)"
+    return 1
+  fi
+  echo "====== Starting build for $TARGET/$1"
+  rm -rf "$TARGET/$1"
+  mkdir -p "$TARGET/$1"
+  cd "$TARGET/$1"
+  srcdir="../../tarballs/$1"
+  return 0
+}
+
+
+postbuild() {
+  touch _built
+  cd ../..
+}
+
+
+# Pre-built cross-compilation binaries for musl. Handy. :)
+getmusl() {
+  # Order of $HOST is different than the tar/dir names, so we need this case.
+  case $TARGET in
+    arm)    DIR=arm-linux-musleabi ;;
+    i486)   DIR=i486-linux-musl ;;
+  esac
+  fem https://bitbucket.org/GregorR/musl-cross/downloads/ crossx86-$DIR-$MUSL_VERSION.tar.xz "musl-$TARGET" $DIR
+}
+
+
+getncurses() {
+  fem http://ftp.gnu.org/pub/gnu/ncurses/ ncurses-$NCURSES_VERSION.tar.gz ncurses
+  prebuild ncurses || return
+  $srcdir/configure --prefix=$PREFIX\
+    --without-cxx --without-cxx-binding --without-ada --without-manpages --without-progs\
+    --without-tests --without-curses-h --without-pkg-config --without-shared --without-debug\
+    --without-gpm --without-sysmouse --enable-widec --with-default-terminfo-dir=/usr/share/terminfo\
+    --with-terminfo-dirs=/usr/share/terminfo:/lib/terminfo:/usr/local/share/terminfo\
+    --with-fallbacks="screen linux vt100 xterm" --host=$HOST\
+    CPPFLAGS=-D_GNU_SOURCE || exit
+  make || exit
+  make install.libs || exit
+  postbuild
+}
+
+
+getncdu() {
+  prebuild ncdu || return
+  srcdir=../../..
+  $srcdir/configure --host=$HOST --with-ncursesw PKG_CONFIG=false\
+    CPPFLAGS=" -D_GNU_SOURCE -I$PREFIX/include -I$PREFIX/include/ncursesw"\
+    LDFLAGS="-static -L$PREFIX/lib -lncursesw" || exit
+  make || exit
+
+  VER=`cd '../../..' && git describe --abbrev=5 --dirty= | sed s/^v//`
+  tar -czf ../../ncdu-linux-$TARGET-$VER-unstripped.tar.gz ncdu
+  $HOST-strip ncdu
+  tar -czf ../../ncdu-linux-$TARGET-$VER.tar.gz ncdu
+  echo "====== ncdu-linux-$TARGET-$VER.tar.gz and -unstripped created."
+
+  postbuild
+}
+
+
+buildarch() {
+  TARGET=$1
+  case $TARGET in
+    arm)    HOST=arm-musl-linuxeabi ;;
+    i486)   HOST=i486-musl-linux ;;
+    *)      echo "Unknown target: $TARGET" ;;
+  esac
+  PREFIX="`pwd`/$TARGET/inst"
+  mkdir -p $TARGET $PREFIX
+
+  getmusl
+  MBIN="`pwd`/tarballs/musl-$TARGET/bin"
+  OLDPATH="$PATH"
+  PATH="$PATH:$MBIN"
+  getncurses
+  getncdu
+  PATH="$OLDPATH"
+}
+
+
+buildarch $1
+