From b234daf50531adeb5bf3112433ab4c5a915f5f43 Mon Sep 17 00:00:00 2001
From: Logan McNaughton <logan@bacoosta.com>
Date: Tue, 5 Jul 2016 23:40:06 -0600
Subject: [PATCH] Add NEON code to cmake system

---
 src/CMakeLists.txt | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index fcdd16e2..819c1bda 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -178,9 +178,25 @@ FIND_PACKAGE( Freetype REQUIRED )
 include_directories( ${FREETYPE_INCLUDE_DIRS} )
 
 if(OPT)
-	add_definitions(
-	-D__VEC4_OPT
-	)
+  add_definitions(
+    -D__VEC4_OPT
+  )
+  if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+    EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO)
+    STRING(REGEX REPLACE "^.*(neon).*$" "\\1" NEON_THERE ${CPUINFO})
+    if(NEON_THERE STREQUAL "neon")
+      add_definitions(
+        -D__NEON_OPT
+      )
+      list(APPEND GLideN64_SOURCES
+        3DMathNeon.cpp
+        gSPNeon.cpp
+      )
+      list(REMOVE_ITEM GLideN64_SOURCES
+        3DMath.cpp
+      )
+    endif(NEON_THERE STREQUAL "neon")
+  endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 endif(OPT)
 
 # Build type