Import XZ from https://raw.githubusercontent.com/bicycle1885/XzBui…

…lder`

Also jump up the `-fPIC` factor

XZ/build_tarballs.jl

@@ -0,0 +1,45 @@
+# Note that this script can accept some limited command-line arguments, run
+# `julia build_tarballs.jl --help` to see a usage message.
+using BinaryBuilder
+
+name = "XZ"
+version = v"5.2.4"
+
+# Collection of sources required to build XzBuilder
+sources = [
+    "https://tukaani.org/xz/xz-$(version).tar.xz" =>
+    "9717ae363760dedf573dad241420c5fea86256b65bc21d2cf71b2b12f0544f4b",
+    "https://tukaani.org/xz/xz-$(version)-windows.zip" =>
+    "9a5163623f435b6fa0844b6b884babd6bf4f8d876ae2d8134deeb296afd49c61",
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+if [ ${target} = "x86_64-w64-mingw32" ]; then
+    mkdir -p ${WORKSPACE}/destdir/bin/
+    cp bin_x86-64/liblzma.dll ${WORKSPACE}/destdir/bin/
+elif [ ${target} = "i686-w64-mingw32" ]; then
+    mkdir -p ${WORKSPACE}/destdir/bin/
+    cp bin_i686/liblzma.dll ${WORKSPACE}/destdir/bin/
+else
+    cd $WORKSPACE/srcdir/xz-*
+    ./configure --prefix=${prefix} --host=${target} --with-pic
+    make -j${nproc}
+    make install
+fi
+"""
+
+# These are the platforms we will build for by default, unless further
+# platforms are passed in on the command line
+platforms = supported_platforms()
+
+# The products that we will ensure are always built
+products(prefix) = [
+    LibraryProduct(prefix, "liblzma", :liblzma)
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = []
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies)