Make sure executables are position-independent

dmg2img/CMakeLists.txt

@@ -2,6 +2,12 @@ cmake_minimum_required(VERSION 3.4)
 
 set(EXECUTABLE_OUTPUT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/src/main/assets/bin/${ANDROID_ABI}")
 
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif(CCACHE_FOUND)
+
 execute_process(
     COMMAND truncate -s 0 crypto/compat/getpagesize.c
     WORKING_DIRECTORY src/c/libressl)

dmg2img/build.gradle

@@ -6,6 +6,7 @@ android {
 		externalNativeBuild {
 			cmake {
 				targets "crypto", "bz2", "ssl", "tls", "dmg2img"
+				arguments "-DANDROID_PIE=ON"
 			}
 		}
 	}