CMakelist cleanup, might buildfix things on Linux Clang

CMakeLists.txt

@@ -3,8 +3,10 @@ cmake_minimum_required(VERSION 3.6)
 project(PPSSPP)
 
 #This is supposed to work but doesn't!
-#set(CMAKE_CXX_STANDARD 11)
-#set(CMAKE_CXX_STANDARD_REQUIRED ON)
+if (NOT ANDROID)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+endif()
 
 enable_language(ASM)
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
@@ -18,6 +20,11 @@ else()
   add_definitions(-DNO_VULKAN)
 endif()
 
+if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+  set(CLANG ON)
+  message("Clang enabled")
+endif()
+
 # Detect CPU from CMAKE configuration. Toolchains should set this up
 if(CMAKE_SYSTEM_PROCESSOR)
 	if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "^arm")
@@ -171,12 +178,12 @@ endif()
 if(ARM64)
 	message("Generating for ARMv8, ${CMAKE_BUILD_TYPE}")
 endif()
-message("hello")
 if(NOT MSVC)
-	if (NOT ANDROID)
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-	else()
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11 -Wno-switch -Wno-uninitialized")
+	if (ANDROID)
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
+	endif()
+	if (CLANG)
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-switch -Wno-uninitialized")
 	endif()
 
 	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g -D_DEBUG")
@@ -200,11 +207,11 @@ if(NOT MSVC)
 
 	# Don't compile with strict aliasing, we're not 100% aliasing-safe
 	add_definitions(-fno-strict-aliasing)
-	if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
+	if (${CMAKE_C_COMPILER_ID} STREQUAL "Intel")
 		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -parallel -fopenmp")
 	endif()
 
-	if((X86 OR X86_64) AND NOT MIPS)   # What's with the AND NOT MIPS?
+	if(X86 OR X86_64)
 		# enable sse2 code generation
 		add_definitions(-msse2)
 	endif()
@@ -216,7 +223,8 @@ if(NOT MSVC)
 		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.7 -stdlib=libc++ -U__STRICT_ANSI__")
 		set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
 	elseif(NOT ANDROID)
-		if (NOT CMAKE_C_COMPILER_ID STREQUAL "Intel" AND NOT CMAKE_C_COMPILER_ID STREQUAL "Clang")
+		# TODO: See if we can get rid of no-psabi
+		if (NOT ${CMAKE_C_COMPILER_ID} STREQUAL "Intel" AND NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
 			add_definitions(-Wno-psabi)
 		endif()
 		add_definitions(-D_XOPEN_SOURCE=700)

b.sh

@@ -39,6 +39,10 @@ do
 		--no-package) echo "Packaging disabled"
 			PACKAGE=0
 			;;
+                --clang) echo "Clang enabled"
+			export CC=/usr/bin/clang
+			export CXX=/usr/bin/clang++
+			;;
 		--*) echo "Bad option: $1"
 			exit 1
 			;;