From 34e19f135c0dd2feac4f77660f51aa4ea28a7386 Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Mon, 12 Dec 2016 06:23:42 -0800
Subject: [PATCH] CMake: Re-use external xbyak target if present (#62)

---
 CMakeLists.txt           | 3 ---
 externals/CMakeLists.txt | 7 +++++++
 src/CMakeLists.txt       | 1 +
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d72c569e..42067c1a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,9 +96,6 @@ include_directories(${Boost_INCLUDE_DIRS})
 include_directories(externals/catch)
 enable_testing(true)  # Enables unit-testing.
 
-# Include Xbyak
-include_directories(externals/xbyak/xbyak)
-
 # Include LLVM
 if (DYNARMIC_USE_LLVM)
     find_package(LLVM REQUIRED CONFIG)
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index e9fa0d6d..a8333a4c 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -6,3 +6,10 @@ if (NOT DYNARMIC_NO_BUNDLED_FMT)
     # fmtlib formatting library
     add_subdirectory(fmt)
 endif()
+
+if (NOT TARGET xbyak)
+    if (ARCHITECTURE_x86 OR ARCHITECTURE_x86_64)
+        add_library(xbyak INTERFACE)
+        target_include_directories(xbyak INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/xbyak/xbyak)
+    endif()
+endif()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1b662919..d78c8d4e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -107,3 +107,4 @@ target_link_libraries(dynarmic PRIVATE fmt-header-only)
 if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
     target_compile_definitions(dynarmic PRIVATE FMT_USE_WINDOWS_H=0)
 endif()
+target_link_libraries(dynarmic PRIVATE xbyak)