From e2c989cd187e5aeccc83255836d0aff5e688b69a Mon Sep 17 00:00:00 2001
From: Matt Borland <matt@mattborland.com>
Date: Mon, 16 Jan 2023 11:13:04 -0800
Subject: [PATCH] Add M1 testing to drone (#868)

---
 .drone.star                            |  2 +
 .drone/drone.sh                        | 55 ++++++++++++++++++++++++++
 include/boost/math/tools/promotion.hpp |  2 +-
 3 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 .drone/drone.sh

diff --git a/.drone.star b/.drone.star
index bdf0a4a2f..5c4cc5db8 100644
--- a/.drone.star
+++ b/.drone.star
@@ -57,6 +57,8 @@ def main(ctx):
       result.append(linux_cxx("Ubuntu g++ s390s " + cxx + " " + suite, "g++", packages="g++", buildtype="boost", image="cppalliance/droneubuntu2204:multiarch", arch="s390x", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
     for cxx in gnu_non_native:
       result.append(linux_cxx("Ubuntu g++ ARM64" + cxx + " " + suite, "g++", packages="g++", buildtype="boost", image="cppalliance/droneubuntu2204:multiarch", arch="arm64", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++', 'CXXSTD': cxx, 'TEST_SUITE': suite, }, globalenv=globalenv))
+    for cxx in gnu_non_native:
+      result.append(osx_cxx("M1 Clang " + cxx + " " + suite, "clang++", buildscript="drone", buildtype="boost", xcode_version="14.1", environment={'TOOLSET': 'clang', 'CXXSTD': cxx, 'TEST_SUITE': suite, 'DEFINE': 'BOOST_MATH_NO_REAL_CONCEPT_TESTS,BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS,BOOST_MATH_MULTI_ARCH_CI_RUN', }, globalenv=globalenv))
 
   return result
 
diff --git a/.drone/drone.sh b/.drone/drone.sh
new file mode 100644
index 000000000..4ccf92eb7
--- /dev/null
+++ b/.drone/drone.sh
@@ -0,0 +1,55 @@
+# Use, modification, and distribution are
+# subject to the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE.txt)
+#
+# Copyright Rene Rivera 2020.
+# Copyright John Maddock 2021.
+
+#!/bin/bash
+
+set -ex
+export TRAVIS_BUILD_DIR=$(pwd)
+export DRONE_BUILD_DIR=$(pwd)
+export TRAVIS_BRANCH=$DRONE_BRANCH
+export VCS_COMMIT_ID=$DRONE_COMMIT
+export GIT_COMMIT=$DRONE_COMMIT
+export PATH=~/.local/bin:/usr/local/bin:$PATH
+
+echo '==================================> BEFORE_INSTALL'
+
+. .drone/before-install.sh
+
+echo '==================================> INSTALL'
+
+cd ..
+if [ "$DRONE_BRANCH" == "master" ] || [[ "$DRONE_BRANCH" == */master ]]; then
+    export BOOST_BRANCH="master"
+else
+    export BOOST_BRANCH="develop"
+fi
+git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+cd boost-root
+git submodule update --init tools/build
+git submodule update --init libs/config
+git submodule update --init libs/polygon
+git submodule update --init tools/boost_install
+git submodule update --init libs/headers
+git submodule update --init tools/boostdep
+cp -r $TRAVIS_BUILD_DIR/* libs/math
+python tools/boostdep/depinst/depinst.py math
+./bootstrap.sh
+./b2 headers
+
+echo '==================================> BEFORE_SCRIPT'
+
+. $DRONE_BUILD_DIR/.drone/before-script.sh
+
+echo '==================================> SCRIPT'
+
+echo "using $TOOLSET : : $COMPILER : <cxxflags>-std=$CXXSTD $OPTIONS ;" > ~/user-config.jam
+(cd libs/config/test && ../../../b2 config_info_travis_install toolset=$TOOLSET && ./config_info_travis)
+(cd libs/math/test && ../../../b2 toolset=$TOOLSET $TEST_SUITE define=$DEFINE)
+
+echo '==================================> AFTER_SUCCESS'
+
+. $DRONE_BUILD_DIR/.drone/after-success.sh
diff --git a/include/boost/math/tools/promotion.hpp b/include/boost/math/tools/promotion.hpp
index 72a0755a1..55ba064c7 100644
--- a/include/boost/math/tools/promotion.hpp
+++ b/include/boost/math/tools/promotion.hpp
@@ -133,7 +133,7 @@ namespace boost
             >::type
          >::type;
 
-#ifdef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
+#if defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
          //
          // Guard against use of long double if it's not supported:
          //