From 7707bc78180b29e3ca341c60e04d8574db1d01cf Mon Sep 17 00:00:00 2001
From: damian0815 <null@damianstewart.com>
Date: Tue, 15 Nov 2022 17:58:30 +0100
Subject: [PATCH] patch python sysconfig so that extensions (greenlet & grpcio)
 can build

---
 installer/install.sh        | 15 ++++++++++++++-
 source_installer/install.sh |  2 +-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/installer/install.sh b/installer/install.sh
index fe6c38fcd1..02d83042ae 100755
--- a/installer/install.sh
+++ b/installer/install.sh
@@ -29,7 +29,7 @@ OS_NAME=$(uname -s)
 case "${OS_NAME}" in
     Linux*)     OS_NAME="linux";;
     Darwin*)    OS_NAME="darwin";;
-    *)          echo -e "\n----- Unknown OS: $OS_NAME! This script runs only on Linux or MacOS -----\n" && exit
+    *)          echo -e "\n----- Unknown OS: $OS_NAME! This script runs only on Linux or macOS -----\n" && exit
 esac
 
 OS_ARCH=$(uname -m)
@@ -154,6 +154,19 @@ echo -e "\n***** Unpacked python-build-standalone *****\n"
 
 # create venv
 _err_msg="\n----- problem creating venv -----\n"
+
+if [ "$OS_NAME" == "darwin" ]; then
+    # patch sysconfig so that extensions can build properly
+    # adapted from https://github.com/cashapp/hermit-packages/commit/fcba384663892f4d9cfb35e8639ff7a28166ee43
+    PYTHON_INSTALL_DIR="$(pwd)/python"
+    SYSCONFIG="$(echo python/lib/python*/_sysconfigdata_*.py)"
+    TMPFILE="$(mktemp)"
+    chmod +w "${SYSCONFIG}"
+    cp "${SYSCONFIG}" "${TMPFILE}"
+    sed "s,'/install,'${PYTHON_INSTALL_DIR},g" "${TMPFILE}" > "${SYSCONFIG}"
+    rm -f ${TMPFILE}
+fi
+
 ./python/bin/python3 -E -s -m venv .venv
 _err_exit $? _err_msg
 # In reality, the following is ALL that 'activate.bat' does,
diff --git a/source_installer/install.sh b/source_installer/install.sh
index 747d701611..d626169800 100755
--- a/source_installer/install.sh
+++ b/source_installer/install.sh
@@ -95,7 +95,7 @@ source "$CONDA_BASEPATH/etc/profile.d/conda.sh" # otherwise conda complains abou
 
 conda activate
 if [ "$OS_NAME" == "mac" ]; then
-    echo "Macintosh system detected. Installing MPS and CPU support."
+    echo "macOS detected. Installing MPS and CPU support."
     ln -sf environments-and-requirements/environment-mac.yml environment.yml
 else
     if (lsmod | grep amdgpu) &>/dev/null ; then