Re-enable LTO; target macos 10.12+

CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.10)  # bionic's cmake version
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Has to be set before `project()`, and ignored on non-macos:
-set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15 CACHE STRING "macOS deployment target (Apple clang only)")
+set(CMAKE_OSX_DEPLOYMENT_TARGET 10.12 CACHE STRING "macOS deployment target (Apple clang only)")
 
 set(LANGS C CXX)
 if(APPLE)

contrib/mac.sh

@@ -28,7 +28,7 @@ cmake \
       -DWITH_SYSTEMD=OFF \
       -DFORCE_OXENMQ_SUBMODULE=ON \
       -DSUBMODULE_CHECK=OFF \
-      -DWITH_LTO=OFF \
+      -DWITH_LTO=ON \
       -DCMAKE_BUILD_TYPE=Release \
       "$@" \
       ..

daemon/CMakeLists.txt

@@ -5,6 +5,7 @@ if(APPLE)
   add_executable(lokinet ${LOKINET_SWIFT_SOURCES})
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Lokinet.modulemap.in ${CMAKE_CURRENT_BINARY_DIR}/swift/LokinetExtension/module.modulemap ESCAPE_QUOTES @ONLY)
   target_include_directories(lokinet PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/swift)
+  enable_lto(lokinet)
 else()
   add_executable(lokinet lokinet.cpp)
   add_executable(lokinet-bootstrap lokinet-bootstrap.cpp)

llarp/apple/CMakeLists.txt

@@ -21,6 +21,7 @@ add_executable(lokinet-extension MACOSX_BUNDLE
   PacketTunnelProvider.m
   DNSTrampoline.m
   )
+enable_lto(lokinet-extension)
 target_link_libraries(lokinet-extension PRIVATE
   liblokinet
   ${COREFOUNDATION}