From fa3a73f9ccf6fcd82ff66ed0e77aa678c95bcb48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Legat?= <benoit.legat@gmail.com>
Date: Fri, 20 Feb 2026 09:01:04 +0100
Subject: [PATCH 1/4] [asio] New package

---
 A/asio/build_tarballs.jl | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 A/asio/build_tarballs.jl

diff --git a/A/asio/build_tarballs.jl b/A/asio/build_tarballs.jl
new file mode 100644
index 00000000000..d3ac17587f0
--- /dev/null
+++ b/A/asio/build_tarballs.jl
@@ -0,0 +1,39 @@
+# 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 $WORKSPACE/srcdir
+cd asio/asio
+./autogen.sh
+./configure --prefix=${prefix} --build=${MACHTYPE} --host=${target}
+make -j${nproc}
+make install
+"""
+
+# 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
+products = Product[
+    LibraryProduct("libasio", :libasio),
+]
+
+# 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, all_platforms, products, dependencies;
+    julia_compat="1.6",
+)

From 7efeea40722327b721baa47bcb90234bcf13a8fe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Legat?= <benoit.legat@gmail.com>
Date: Fri, 20 Feb 2026 11:19:09 +0100
Subject: [PATCH 2/4] Bump gcc to v5

---
 A/asio/build_tarballs.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/A/asio/build_tarballs.jl b/A/asio/build_tarballs.jl
index d3ac17587f0..1bc360b5aea 100644
--- a/A/asio/build_tarballs.jl
+++ b/A/asio/build_tarballs.jl
@@ -33,7 +33,9 @@ products = Product[
 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",
 )

From 01d4ffadf1c2828c1fe9a4f49aaf766e475b0578 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Legat?= <benoit.legat@gmail.com>
Date: Fri, 20 Feb 2026 11:51:57 +0100
Subject: [PATCH 3/4] Add header as product

---
 A/asio/build_tarballs.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/A/asio/build_tarballs.jl b/A/asio/build_tarballs.jl
index 1bc360b5aea..3c0952f7bc7 100644
--- a/A/asio/build_tarballs.jl
+++ b/A/asio/build_tarballs.jl
@@ -24,9 +24,9 @@ make install
 # platforms are passed in on the command line
 all_platforms = supported_platforms()
 
-# The products that we will ensure are always built
+# The products that we will ensure are always built (header-only: export main header so downstreams can discover include/)
 products = Product[
-    LibraryProduct("libasio", :libasio),
+    FileProduct("include/asio.hpp", :asio_hpp),
 ]
 
 # Dependencies that must be installed before this package can be built

From a1e4f75bbe2ba9aab96813d5f3e2708eba8fc4b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Legat?= <benoit.legat@gmail.com>
Date: Fri, 20 Feb 2026 13:02:50 +0100
Subject: [PATCH 4/4] Skip make for windows

---
 A/asio/build_tarballs.jl | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/A/asio/build_tarballs.jl b/A/asio/build_tarballs.jl
index 3c0952f7bc7..52ba2334eae 100644
--- a/A/asio/build_tarballs.jl
+++ b/A/asio/build_tarballs.jl
@@ -14,10 +14,17 @@ sources = [
 script = raw"""
 cd $WORKSPACE/srcdir
 cd asio/asio
-./autogen.sh
-./configure --prefix=${prefix} --build=${MACHTYPE} --host=${target}
-make -j${nproc}
-make install
+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