From 8a4962dc075a7b0af4b8a8c412eea315f4056acf Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Sun, 16 Jun 2024 14:46:31 +0200
Subject: MacOSX: Better build flags logic handling. Suppress Xcode 15 linked
 warning.

---
 src/Makefile | 119 +++++++++++++++++++++++++++++------------------------------
 1 file changed, 59 insertions(+), 60 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index 81926eba..c0b9df7f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -296,7 +296,8 @@ ifeq "$(shell uname -s)" "Darwin"
 	APPNAME := VeraCrypt
 
 	export VC_OSX_TARGET ?= 12
-	export VC_OSX_SDK ?= $(VC_OSX_TARGET)
+	# use the output of the command "xcrun --show-sdk-version" to set the SDK version if not set
+	export VC_OSX_SDK ?= $(shell xcrun --show-sdk-version)
 
 	#check to see if XCode 3 path exists.Otherwise, use XCode 4 path
 	VC_OSX_SDK_PATH := /Developer/SDKs/MacOSX$(VC_OSX_SDK).sdk
@@ -316,29 +317,41 @@ ifeq "$(shell uname -s)" "Darwin"
 
 	C_CXX_FLAGS += -DTC_UNIX -DTC_BSD -DTC_MACOSX -mmacosx-version-min=$(VC_OSX_TARGET) -isysroot $(VC_OSX_SDK_PATH)
 	LFLAGS += -mmacosx-version-min=$(VC_OSX_TARGET) -Wl,-syslibroot $(VC_OSX_SDK_PATH)
-	WX_CONFIGURE_FLAGS += --with-macosx-version-min=$(VC_OSX_TARGET) --with-macosx-sdk=$(VC_OSX_SDK_PATH)
+	#Xcode 15 linker emits a warning "no platform load command found" when linking object files generated by yasm
+	# To suppress this warning, we need to use -Wl,-ld_classic flag in order to use the old ld64 linker
+	# https://mjtsai.com/blog/2024/03/15/xcode-15-no-platform-load-command-found/
+	# Check Xcode version for using specific linker flag
+    XCODE_VERSION := $(shell xcodebuild -version 2>/dev/null | grep 'Xcode' | sed -E 's/Xcode ([0-9]+).*/\1/')
+    ifneq ($(XCODE_VERSION),)
+        ifeq "$(shell expr $(XCODE_VERSION) \>= 15)" "1"
+            LFLAGS += -Wl,-ld_classic
+        endif
+    else
+        $(error Xcode not found, please check your installation)
+    endif
 
-	ifeq "$(CPU_ARCH)" "x64"
-		CPU_ARCH = x86
-	endif
-	
-	ifeq "$(CPU_ARCH)" "arm64"
-		CPU_ARCH = arm64
-	endif
+	WX_CONFIGURE_FLAGS += --with-macosx-version-min=$(VC_OSX_TARGET) --with-macosx-sdk=$(VC_OSX_SDK_PATH)
 
-	ifneq "$(CPU_ARCH)" "arm64"
-		CFLAGS += -msse2
-		CXXFLAGS += -msse2
-	endif
 
-	ifeq "$(origin SSSE3)" "command line"
-		CFLAGS += -mssse3
-		CXXFLAGS += -mssse3
+	# Set x86 assembly flags (-msse2, -mssse3, -msse4.1)
+	# Apply flags if SIMD_SUPPORTED is 1 or if not in local development build (we are creating universal binary in this case)
+	ifneq "$(LOCAL_DEVELOPMENT_BUILD)" "true"
+    	SIMD_SUPPORTED = 1
 	endif
 
-	ifeq "$(origin SSE41)" "command line"
-		CFLAGS += -mssse3 -msse4.1
-		CXXFLAGS += -mssse3 -msse4.1
+	ifeq "$(SIMD_SUPPORTED)" "1"
+    	CFLAGS += -msse2
+    	CXXFLAGS += -msse2
+
+    	ifeq "$(origin SSSE3)" "command line"
+        	CFLAGS += -mssse3
+        	CXXFLAGS += -mssse3
+    	endif
+
+    	ifeq "$(origin SSE41)" "command line"
+        	CFLAGS += -mssse3 -msse4.1
+        	CXXFLAGS += -mssse3 -msse4.1
+    	endif
 	endif
 
 	AS ?= $(BASE_DIR)/Build/Tools/MacOSX/yasm
@@ -347,52 +360,38 @@ ifeq "$(shell uname -s)" "Darwin"
 
 	ifeq "$(TC_BUILD_CONFIG)" "Release"
 
-		export DISABLE_PRECOMPILED_HEADERS := 1
-
-		S := $(C_CXX_FLAGS)
-		C_CXX_FLAGS = $(subst -MMD,,$(S))
-
-		# only build local arch in development builds
-		ifeq "$(LOCAL_DEVELOPMENT_BUILD)" "true"
-			ifeq "$(CPU_ARCH)" "arm64"
-				C_CXX_FLAGS += -gfull -arch $(CPU_ARCH)
-				LFLAGS += -Wl,-dead_strip -arch $(CPU_ARCH)
+    	export DISABLE_PRECOMPILED_HEADERS := 1
+
+    	C_CXX_FLAGS := $(subst -MMD,,$(C_CXX_FLAGS)) -gfull
+    	LFLAGS += -Wl,-dead_strip
+
+    	# Initialize architecture flag
+    	ARCH_FLAG := -arch x86_64
+
+    	# Set architecture flags based on build type and CPU architecture
+    	ifeq "$(LOCAL_DEVELOPMENT_BUILD)" "true"
+        	ifeq "$(CPU_ARCH)" "arm64"
+            	ARCH_FLAG := -arch arm64
+        	endif
+        	WX_CONFIGURE_FLAGS += --disable-universal_binary
+    	else
+			# Legacy build settings
+			ifdef VC_LEGACY_BUILD
+				ARCH_FLAG += -arch i386
+				WX_CONFIGURE_FLAGS += --enable-universal_binary=i386,x86_64
 			else
-				C_CXX_FLAGS += -gfull -arch x86_64
-				LFLAGS += -Wl,-dead_strip -arch x86_64
-			endif
-		else
-			# leave previous logic as is
-			C_CXX_FLAGS += -gfull -arch x86_64
-			LFLAGS += -Wl,-dead_strip -arch x86_64
-		endif
-		
-		WX_CONFIGURE_FLAGS += --without-libpng --disable-gif --disable-pcx --disable-tga --disable-iff --disable-gif --disable-svg
-
-		#----- Legacy build: we build both 32-bit and 64-bit ----
-		ifdef VC_LEGACY_BUILD
-			C_CXX_FLAGS += -arch i386
-			LFLAGS += -arch i386
-			WX_CONFIGURE_FLAGS += --enable-universal_binary=i386,x86_64
-		else
-			CXXFLAGS += -std=c++11
-			ifeq "$(LOCAL_DEVELOPMENT_BUILD)" "true"
-				ifeq "$(CPU_ARCH)" "arm64"
-					C_CXX_FLAGS += -arch arm64
-					LFLAGS += -arch arm64
-				else
-					C_CXX_FLAGS += -arch x86_64
-					LFLAGS += -arch x86_64
-				endif
-				WX_CONFIGURE_FLAGS += --disable-universal_binary
-			else
-				# leave previous logic as is
-				C_CXX_FLAGS += -arch arm64
-				LFLAGS += -arch arm64
+				CXXFLAGS += -std=c++11
+				# Non-development build defaults to universal binary for arm64 and x86_64
+				ARCH_FLAG += -arch arm64
 				WX_CONFIGURE_FLAGS += --enable-universal_binary=arm64,x86_64
 			endif
 		endif
 
+		# Apply architecture flags
+		C_CXX_FLAGS += $(ARCH_FLAG)
+		LFLAGS += $(ARCH_FLAG)
+
+		WX_CONFIGURE_FLAGS += --without-libpng --disable-gif --disable-pcx --disable-tga --disable-iff --disable-svg
 		WXCONFIG_CFLAGS += -gfull
 		WXCONFIG_CXXFLAGS += -gfull
 
-- 
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