build: Support Xcode 16.2 on Linux, including cross-compiling OpenSSL.

GNUmakefile

@@ -238,7 +238,8 @@ $(IOS_TARGETS): CC = xcrun --sdk iphoneos clang -isysroot $(IOS_SYSROOT) -arch a
 $(IOSSIM_TARGETS): IOSSIM_SYSROOT := $(shell xcrun --sdk iphonesimulator --show-sdk-path)
 $(IOSSIM_TARGETS): CC = xcrun --sdk iphonesimulator clang -isysroot $(IOSSIM_SYSROOT) -arch x86_64
 else ifeq ($(UNAME_S),Linux)
-$(IOS_TARGETS): IOS_SYSROOT := deps/iPhoneOS17.0.sdk
+$(IOS_TARGETS): CFLAGS += -isysroot deps/ios_toolchain/target/SDKs/iPhoneOS18.2.sdk -arch arm64
+$(IOS_TARGETS): LDFLAGS += -isysroot deps/ios_toolchain/target/SDKs/iPhoneOS18.2.sdk
 $(IOS_TARGETS): CC = PATH=$$PATH:deps/ios_toolchain/target/bin deps/ios_toolchain/target/bin/arm-apple-darwin11-clang
 endif
 $(ANDROID_X86_64_TARGETS): ANDROID_NDK_TARGET_TRIPLE := x86_64-linux-android
@@ -261,8 +262,15 @@ $(ANDROID_X86_64_TARGETS): CFLAGS += -Ideps/openssl/android/x86_64/usr/local/inc
 $(ANDROID_X86_64_TARGETS): LDFLAGS += -Ldeps/openssl/android/x86_64/usr/local/lib
 $(NONMACOS_TARGETS): CFLAGS += -Wno-cast-function-type
 $(DEADSTRIP_TARGETS): LDFLAGS += -Wl,--gc-sections
-$(IOS_TARGETS): CFLAGS += -miphoneos-version-min=9.0 -Ideps/openssl/ios/ios64-xcrun/usr/local/include
+$(IOS_TARGETS): CFLAGS += -miphoneos-version-min=9.0
-$(IOS_TARGETS): LDFLAGS += -miphoneos-version-min=9.0 -Ldeps/openssl/ios/ios64-xcrun/usr/local/lib
+$(IOS_TARGETS): LDFLAGS += -miphoneos-version-min=9.0
+ifeq ($(UNAME_S),Darwin)
+$(IOS_TARGETS): CFLAGS += -Ideps/openssl/ios/ios64-xcrun/usr/local/include
+$(IOS_TARGETS): LDFLAGS += -Ldeps/openssl/ios/ios64-xcrun/usr/local/lib
+else
+$(IOS_TARGETS): CFLAGS += -Ideps/openssl/$(UNAME_S)/ios64-cross/usr/local/include
+$(IOS_TARGETS): LDFLAGS += -Ldeps/openssl/$(UNAME_S)/ios64-cross/usr/local/lib
+endif
 $(IOSSIM_TARGETS): CFLAGS += -Ideps/openssl/ios/iossimulator-xcrun/usr/local/include
 $(IOSSIM_TARGETS): LDFLAGS += -Ldeps/openssl/ios/iossimulator-xcrun/usr/local/lib
 $(LINUX_TARGETS) $(MACOS_TARGETS): CFLAGS += -Ideps/openssl/$(UNAME_S)/$(UNAME_M)/usr/local/include
@@ -1136,21 +1144,36 @@ $(filter $(BUILD_DIR)/android%,$(APP_OBJS)): | $(ANDROID_DEPS)
 ifeq ($(UNAME_S),Linux)
 LOCAL_DEPS := deps/openssl/$(UNAME_S)/$(UNAME_M)/usr/local/lib/libssl.a
 $(LOCAL_DEPS):
-	+@tools/ssl-local
+	+@OPTIONS=-flto tools/ssl-local
 $(filter $(BUILD_DIR)/debug/%,$(APP_OBJS)) $(filter $(BUILD_DIR)/release/%,$(APP_OBJS)): | $(LOCAL_DEPS)
 
 ifeq ($(HAVE_CROSS_AARCH64),1)
 LOCAL_DEPS := deps/openssl/$(UNAME_S)/aarch64/usr/local/lib/libssl.a
 $(LOCAL_DEPS):
-	+@OPTIONS=--cross-compile-prefix=aarch64-linux-gnu- BUILD_TARGET=aarch64 tools/ssl-local
+	+@OPTIONS="--cross-compile-prefix=aarch64-linux-gnu- -flto" BUILD_TARGET=aarch64 tools/ssl-local
 $(filter $(BUILD_DIR)/armdebug/%,$(APP_OBJS)) $(filter $(BUILD_DIR)/armrelease/%,$(APP_OBJS)): | $(LOCAL_DEPS)
 endif
+
+ifeq ($(HAVE_LINUX_IOS),1)
+LOCAL_DEPS := deps/openssl/$(UNAME_S)/ios64-cross/usr/local/lib/libssl.a
+$(LOCAL_DEPS):
+	+@PATH=deps/ios_toolchain/target/bin:$$PATH \
+		BUILD_TARGET=ios64-cross \
+		SSL_TARGET=ios64-cross \
+		CROSS_COMPILE=../../deps/ios_toolchain/target/bin/arm-apple-darwin11- \
+		CROSS_TOP=../../deps/ios_toolchain/target \
+		CROSS_SDK=iPhoneOS18.2.sdk \
+		CC=clang \
+		OPTIONS=-miphoneos-version-min=9.0 \
+		tools/ssl-local
+$(filter $(BUILD_DIR)/ios%,$(APP_OBJS)): | $(LOCAL_DEPS)
+endif
 endif
 
 ifeq ($(UNAME_S),Darwin)
 LOCAL_DEPS := deps/openssl/$(UNAME_S)/$(UNAME_M)/usr/local/lib/libssl.a
 $(LOCAL_DEPS):
-	+@tools/ssl-local
+	+@OPTIONS=-flto tools/ssl-local
 $(filter $(BUILD_DIR)/macosdebug/%,$(APP_OBJS)) $(filter $(BUILD_DIR)/macosrelease/%,$(APP_OBJS)): | $(LOCAL_DEPS)
 endif
 

test.c

@@ -0,0 +1,3 @@
+int main() {
+	return 0;
+}

tools/ssl-local

@@ -6,8 +6,10 @@ if [[ -z $BUILD_TARGET ]]; then
 	WORK_DIR=out/openssl-local
 else
 	WORK_DIR=out/openssl-$BUILD_TARGET
+	if [[ -z $SSL_TARGET ]]; then
 		SSL_TARGET=linux-$BUILD_TARGET
 	fi
+fi
 
 rm -rf $WORK_DIR
 cp -aRf deps/openssl_src/ $WORK_DIR
@@ -72,8 +74,7 @@ no-zlib
 -Os
 -DOPENSSL_SMALL_FOOTPRINT
 -ffunction-sections
--fdata-sections
+-fdata-sections"
--flto"
 pwd
 echo "./Configure $SSL_TARGET $OPTIONS $GLOBAL_OPTIONS" && \
 ./Configure $SSL_TARGET $OPTIONS $GLOBAL_OPTIONS && \