Add xz build directory to the base

Author: culler

Sage_base/sage/xz/build_xz.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+VERSION=5.8.2
+SRC_DIR=xz-${VERSION}
+SRC_ARCHIVE=${SRC_DIR}.tar.gz
+URL=https://github.com/tukaani-project/xz/releases/download/v$VERSION}/${SRC_ARCHIVE}
+HASH=7bf2d887bd0ad401e0a4787a9033d9235036b3bb
+INSTALL_PREFIX=`pwd`/local
+ARCH=`/usr/bin/arch`
+
+set -e
+cd xz
+
+if ! [ -e ${SRC_ARCHIVE} ]; then
+    echo "Downloading source archive ${SRC_ARCHIVE}..."
+    curl -L -O ${URL}
+    ACTUAL_HASH=`/usr/bin/shasum ${SRC_ARCHIVE}  | cut -f 1 -d' '`
+    if [[ ${ACTUAL_HASH} != ${HASH} ]]; then
+	echo Invalid hash value for ${SRC_ARCHIVE}
+	exit 1
+    fi
+fi
+
+if ! [ -d ${SRC_DIR} ]; then
+    tar xfz ${SRC_ARCHIVE}
+    pushd ${SRC_DIR}
+    for patchfile in `ls ../patches`; do
+	patch -p1 < ../patches/$patchfile
+    done
+    popd
+fi
+
+cd ${SRC_DIR}
+if [ -e Makefile ]; then
+    make distclean
+fi
+
+if [ $ARCH == "arm64" ]; then
+    ./configure \
+    --prefix=${INSTALL_PREFIX} \
+    CFLAGS="-mmacosx-version-min=11" \
+    LDFLAGS="-Wl,-ld_classic"
+else
+    ./configure \
+    --prefix=${INSTALL_PREFIX} \
+    CFLAGS="-mmacosx-version-min=10.13" \
+    LDFLAGS="-Wl,-ld_classic"
+fi
+echo "Building xz ..."
+gmake -j8
+gmake install