--- ogre-1.9.1/OgreMain/src/OgrePlatformInformation.cpp.orig	2020-12-05 16:49:00.123407390 -0500
+++ ogre-1.9.1/OgreMain/src/OgrePlatformInformation.cpp	2020-12-05 16:49:19.979802335 -0500
@@ -43,7 +43,7 @@ THE SOFTWARE.
     #if OGRE_PLATFORM == OGRE_PLATFORM_ANDROID
         #include <cpu-features.h>
     #elif OGRE_CPU == OGRE_CPU_ARM 
-        #include <sys/sysctl.h>
+        #include <linux/sysctl.h>
         #if __MACH__
             #include <mach/machine.h>
             #ifndef CPU_SUBTYPE_ARM64_V8