From 913588466dc981d5c1295f1a98e4de5e63b86a37 Mon Sep 17 00:00:00 2001
From: dm1try <me@dmitry.it>
Date: Tue, 16 Oct 2018 03:35:15 +0300
Subject: [PATCH 1/2] build/macOS: fix luajit install step prevent luajit to
 assigning default value to MACOSX_DEPLOYMENT_TARGET ref #9050

---
 third-party/cmake/BuildLuajit.cmake | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/third-party/cmake/BuildLuajit.cmake b/third-party/cmake/BuildLuajit.cmake
index 721bca9f63..e965927f4e 100644
--- a/third-party/cmake/BuildLuajit.cmake
+++ b/third-party/cmake/BuildLuajit.cmake
@@ -50,8 +50,17 @@ set(INSTALLCMD_UNIX ${MAKE_PRG} CFLAGS=-fPIC
                                 install)
 
 if(UNIX)
+  if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+    # Set MACOSX_DEPLOYMENT_TARGET (else luajit defaults to 10.4). #9050
+    # https://github.com/LuaJIT/LuaJIT/blob/b025b01c5b9d23f6218c7d72b7aafa3f1ab1e08a/src/Makefile#L301-L303
+    set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
+  else()
+    set(DEPLOYMENT_TARGET "")
+  endif()
+
   BuildLuaJit(INSTALL_COMMAND ${INSTALLCMD_UNIX}
-    CC=${DEPS_C_COMPILER} PREFIX=${DEPS_INSTALL_DIR})
+    CC=${DEPS_C_COMPILER} PREFIX=${DEPS_INSTALL_DIR}
+    ${DEPLOYMENT_TARGET})
 
 elseif(MINGW AND CMAKE_CROSSCOMPILING)
 

From 31f63c8d55fdd1108d391b35e4e95ad67492ff34 Mon Sep 17 00:00:00 2001
From: dm1try <me@dmitry.it>
Date: Tue, 16 Oct 2018 03:52:04 +0300
Subject: [PATCH 2/2] build/macOS: provide SDK path to deps compiler otherwise,
 system headers cannot be found on Mojave they were moved from /usr/include to
 SDK path

---
 third-party/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/third-party/CMakeLists.txt b/third-party/CMakeLists.txt
index 4ca00b26cd..2c59d79c55 100644
--- a/third-party/CMakeLists.txt
+++ b/third-party/CMakeLists.txt
@@ -98,6 +98,10 @@ else()
   set(DEPS_C_COMPILER "${CMAKE_C_COMPILER}")
 endif()
 
+if(CMAKE_OSX_SYSROOT)
+  set(DEPS_C_COMPILER "${DEPS_C_COMPILER} -isysroot${CMAKE_OSX_SYSROOT}")
+endif()
+
 # Cross compiling: use these for dependencies built for the
 # HOST system, when not crosscompiling these should be the
 # same as DEPS_*. Except when targeting Unix in which case