Step6: add python and snake.

Now we have a programming environment and
we have a small game for amusement :).

Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>

package/libffi/make.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/bash
+source $(dirname "$0")/../common.sh
+
+PKGNAME=libffi
+PKGVERSION=3.4.8
+PKGSOURCE_DIR=libffi
+PKGSOURCE=libffi-3.4.8.tar.gz
+PKGURL=https://github.com/libffi/libffi/releases/download/v3.4.8/libffi-3.4.8.tar.gz
+
+PKGBUILDNAME=${PKGNAME}
+PKGBUILD_DIR=${BUILD_DIR}/${PKGBUILDNAME}-${PKGVERSION}
+
+echo "----> Building ${PKGBUILDNAME} ..."
+
+stamp_downloaded
+
+step_start extract
+mkdir -p ${PKGBUILD_DIR}
+gzip -d -c ${DL_DIR}/${PKGSOURCE_DIR}/${PKGSOURCE} | tar --strip-components=1 -C ${PKGBUILD_DIR} -xf -
+chmod -R +rw ${PKGBUILD_DIR}
+step_end extract
+
+step_start patch
+TAR="tar" PATH=${HOST_DIR}/bin:$PATH ${PROJECT_DIR}/support/scripts/apply-patches.sh ${PKGBUILD_DIR} ${PROJECT_DIR}/package/${PKGNAME} \*.patch
+step_end patch autotools ignore_libtool_patch
+
+step_start configure
+echo ">>> ${PKGBUILDNAME} ${PKGVERSION} Autoreconfiguring"
+cd ${PKGBUILD_DIR} && eval "AUTOPOINT=/bin/true ${AUTORECONF_OPTS} ${HOST_DIR}/bin/autoreconf -f -i" 
+patch_libtool ${PKGBUILD_DIR}
+(cd ${PKGBUILD_DIR} && rm -rf config.cache && eval "${TARGET_CONFIGURE_OPTS} CXX=no ac_cv_lbl_unaligned_fail=yes ac_cv_func_mmap_fixed_mapped=yes ac_cv_func_memcmp_working=yes ac_cv_have_decl_malloc=yes gl_cv_func_malloc_0_nonnull=yes ac_cv_func_malloc_0_nonnull=yes ac_cv_func_calloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes lt_cv_sys_lib_search_path_spec=\"\" ac_cv_c_bigendian=no   CONFIG_SITE=/dev/null ./configure --target=${GNU_TARGET_NAME} --host=${GNU_TARGET_NAME} --build=x86_64-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-prefix=\"\" --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --disable-dependency-tracking --enable-ipv6 --disable-nls --disable-static --enable-shared  --disable-multi-os-directory --disable-exec-static-tramp")
+step_end configure
+
+step_start build
+eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS}  -C ${PKGBUILD_DIR}"
+step_end build
+
+step_start install-staging
+eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS} DESTDIR=${STAGING_DIR} install -C ${PKGBUILD_DIR}"
+step_end install-staging
+
+step_start install-target
+eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS} DESTDIR=${TARGET_DIR} install -C ${PKGBUILD_DIR}"
+step_end install-target
+
+stamp_installed
+
+echo "<---- ${PKGBUILDNAME} build complete."