diff --git a/A/asio/build_tarballs.jl b/A/asio/build_tarballs.jl
new file mode 100644
index 00000000000..52ba2334eae
--- /dev/null
+++ b/A/asio/build_tarballs.jl
@@ -0,0 +1,48 @@
+# Note that this script can accept some limited command-line arguments, run
+# `julia build_tarballs.jl --help` to see a usage message.
+using BinaryBuilder, Pkg
+
+name = "asio"
+version = v"1.36.0"
+
+# Collection of sources required to complete build
+sources = [
+    GitSource("https://github.com/chriskohlhoff/asio.git", "231cb29bab30f82712fcd54faaea42424cc6e710"),
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir
+cd asio/asio
+if [[ ${target} == *-w64-mingw32 ]]; then
+    # Header-only: on Windows skip build (examples use POSIX-only asio::posix::stream_descriptor) and install headers manually
+    mkdir -p ${includedir}
+    cp include/asio.hpp ${includedir}/
+    cp -r include/asio ${includedir}/
+else
+    ./autogen.sh
+    ./configure --prefix=${prefix} --build=${MACHTYPE} --host=${target}
+    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
+all_platforms = supported_platforms()
+
+# The products that we will ensure are always built (header-only: export main header so downstreams can discover include/)
+products = Product[
+    FileProduct("include/asio.hpp", :asio_hpp),
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = []
+
+# Build the tarballs, and possibly a `build.jl` as well.
+# GCC v4 is missing `std::align`
+build_tarballs(
+    ARGS, name, version, sources, script, all_platforms, products, dependencies;
+    julia_compat="1.6",
+    preferred_gcc_version=v"5",
+)