cmake: use PIE option specific to game building

Author: illwieckz

CMakeLists.txt

@@ -546,7 +546,7 @@ endif()
 include(DaemonNacl)
 if (NACL)
     add_library(srclibs-nacl-module EXCLUDE_FROM_ALL ${NACLLIST_MODULE})
-    set_target_properties(srclibs-nacl-module PROPERTIES POSITION_INDEPENDENT_CODE 1 FOLDER "libs")
+    set_target_properties(srclibs-nacl-module PROPERTIES POSITION_INDEPENDENT_CODE ${GAME_PIE} FOLDER "libs")
     set(LIBS_BASE ${LIBS_BASE} srclibs-nacl-module)
 else()
     add_library(srclibs-nacl-native EXCLUDE_FROM_ALL ${NACLLIST_NATIVE})
@@ -620,7 +620,7 @@ if (BUILD_CLIENT OR BUILD_TTY_CLIENT OR BUILD_SERVER OR BUILD_DUMMY_APP OR NACL)
         find_package(ZLIB REQUIRED)
     else()
         add_library(srclibs-zlib EXCLUDE_FROM_ALL ${ZLIBLIST})
-        set_target_properties(srclibs-zlib PROPERTIES POSITION_INDEPENDENT_CODE 1 FOLDER "libs")
+        set_target_properties(srclibs-zlib PROPERTIES POSITION_INDEPENDENT_CODE ${GAME_PIE} FOLDER "libs")
         set(ZLIB_INCLUDE_DIRS ${LIB_DIR}/zlib)
         set(ZLIB_LIBRARIES srclibs-zlib)
     endif()

cmake/DaemonGame.cmake

@@ -31,6 +31,7 @@ include(DaemonFlags)
 
 # Function to setup all the Sgame/Cgame libraries
 include(CMakeParseArguments)
+
 function(GAMEMODULE)
     # ParseArguments setup
     set(oneValueArgs NAME)

cmake/DaemonPlatform.cmake

@@ -38,4 +38,17 @@ else()
   message( FATAL_ERROR "Platform not supported" )
 endif()
 
+if (USE_NACL_SAIGO)
+	# Saigo clang reports weird errors when building some cgame and sgame arm nexe with PIE.
+	# Saigo clang crashes when building amd64 cgame with PIE, sgame builds properly though.
+	if (NACL_TARGET STREQUAL "armhf" OR NACL_TARGET STREQUAL "amd64")
+		set(GAME_PIE 0)
+	else()
+		set(GAME_PIE 1)
+	endif()
+else()
+	set(GAME_PIE 1)
+endif()
+
+
 include("${DAEMON_DIR}/tools/DaemonArchitecture/DaemonArchitecture.cmake")

cmake/toolchain-saigo.cmake

@@ -41,6 +41,7 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH)
 
 set(NACL ON)
+
 add_definitions(-DUSE_NACL_SAIGO)
 
 set(CMAKE_C_FLAGS "")