Other: macOS 11 support.

Other: added option to force build arch on macOS.
Other: got rid of linker warnings when building go with macOS 11 compatibility.

Makefile

@@ -21,12 +21,14 @@ SRC_SVG:=bridge.svg
 EXE_NAME:=proton-bridge
 REVISION:=$(shell git rev-parse --short=10 HEAD)
 BUILD_TIME:=$(shell date +%FT%T%z)
+MACOS_MIN_VERSION=11.0
 
 BUILD_FLAGS:=-tags='${BUILD_TAGS}'
 BUILD_FLAGS_LAUNCHER:=${BUILD_FLAGS}
 BUILD_FLAGS_GUI:=-tags='${BUILD_TAGS} build_qt'
 GO_LDFLAGS:=$(addprefix -X github.com/ProtonMail/proton-bridge/v2/internal/constants., Version=${APP_VERSION} Revision=${REVISION} BuildTime=${BUILD_TIME})
 GO_LDFLAGS+=-X "github.com/ProtonMail/proton-bridge/v2/internal/constants.FullAppName=${APP_FULL_NAME}"
+
 ifneq "${BUILD_LDFLAGS}" ""
 	GO_LDFLAGS+=${BUILD_LDFLAGS}
 endif
@@ -39,7 +41,6 @@ endif
 BUILD_FLAGS+=-ldflags '${GO_LDFLAGS}'
 BUILD_FLAGS_GUI+=-ldflags "${GO_LDFLAGS}"
 BUILD_FLAGS_LAUNCHER+=-ldflags '${GO_LDFLAGS_LAUNCHER}'
-
 DEPLOY_DIR:=cmd/${TARGET_CMD}/deploy
 DIRNAME:=$(shell basename ${CURDIR})
 
@@ -84,8 +85,8 @@ go-build=go build $(1) -o $(2) $(3)
 go-build-finalize=${go-build}
 ifeq "${GOOS}-$(shell uname -m)" "darwin-arm64"
 	go-build-finalize= \
-		CGO_ENABLED=1 GOARCH=arm64 $(call go-build,$(1),$(2)_arm,$(3)) && \
-		CGO_ENABLED=1 GOARCH=amd64 $(call go-build,$(1),$(2)_amd,$(3)) && \
+		MACOSX_DEPLOYMENT_TARGET=${MACOS_MIN_VERSION} CGO_ENABLED=1 CGO_CFLAGS="-mmacosx-version-min=${MACOS_MIN_VERSION}" GOARCH=arm64 $(call go-build,$(1),$(2)_arm,$(3)) && \
+		MACOSX_DEPLOYMENT_TARGET=${MACOS_MIN_VERSION} CGO_ENABLED=1 CGO_CFLAGS="-mmacosx-version-min=${MACOS_MIN_VERSION}" GOARCH=amd64 $(call go-build,$(1),$(2)_amd,$(3)) && \
 		lipo -create -output $(2) $(2)_arm $(2)_amd && rm -f $(2)_arm $(2)_amd
 endif
 

internal/frontend/bridge-gui/BridgeSetup.cmake

@@ -19,6 +19,9 @@
 include_guard()
 
 
+set(CMAKE_OSX_DEPLOYMENT_TARGET 11.0)
+
+
 if (NOT DEFINED BRIDGE_REPO_ROOT)
     message(FATAL_ERROR "BRIDGE_REPO_ROOT is not defined.")
 endif()
@@ -71,10 +74,10 @@ if (APPLE)
 
     if (CMAKE_OSX_ARCHITECTURES STREQUAL "arm64")
         message(STATUS "Building for Apple Silicon Mac computers")
-        set(VCPKG_TARGET_TRIPLET arm64-osx)
+        set(VCPKG_TARGET_TRIPLET arm64-osx-min-11-0)
     elseif (CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64")
         message(STATUS "Building for Intel based Mac computers")
-        set(VCPKG_TARGET_TRIPLET x64-osx)
+        set(VCPKG_TARGET_TRIPLET x64-osx-min-11-0)
     else ()
         message(FATAL_ERROR "Unknown value for CMAKE_OSX_ARCHITECTURE. Please use one of \"arm64\" and \"x86_64\". Multiple architectures are not supported.")
     endif ()

internal/frontend/bridge-gui/bridge-gui/build.sh

@@ -54,6 +54,7 @@ BRIDGE_APP_FULL_NAME=${BRIDGE_APP_FULL_NAME:-"Proton Mail Bridge"}
 BRIDGE_VENDOR=${BRIDGE_VENDOR:-"Proton AG"}
 BUILD_CONFIG=${BRIDGE_GUI_BUILD_CONFIG:-Debug}
 BUILD_DIR=$(echo "./cmake-build-${BUILD_CONFIG}" | tr '[:upper:]' '[:lower:]')
+VCPKG_OSX_DEPLOYMENT_TARGET=11.0
 VCPKG_ROOT="${BRIDGE_REPO_ROOT}/extern/vcpkg"
 
 git submodule update --init --recursive ${VCPKG_ROOT}
@@ -70,10 +71,10 @@ check_exit "Failed to bootstrap vcpkg."
 
 if [[ "$OSTYPE" == "darwin"* ]]; then
     if [[ "$(uname -m)" == "arm64" ]]; then
-        ${VCPKG_EXE} install grpc:arm64-osx --clean-after-build
+        ${VCPKG_EXE} install grpc:arm64-osx-min-11-0 --overlay-triplets=vcpkg/triplets --clean-after-build
         check_exit "Failed installing gRPC for macOS / Apple Silicon"
     fi
-    ${VCPKG_EXE} install grpc:x64-osx --clean-after-build
+    ${VCPKG_EXE} install grpc:x64-osx-min-11-0 --overlay-triplets=vcpkg/triplets --clean-after-build
     check_exit "Failed installing gRPC for macOS / Intel x64"
 elif [[ "$OSTYPE" == "linux"* ]]; then
     ${VCPKG_EXE} install grpc:x64-linux --clean-after-build
@@ -85,11 +86,17 @@ fi
 
 ${VCPKG_EXE} upgrade --no-dry-run
 
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  BRIDGE_CMAKE_MACOS_OPTS="-DCMAKE_OSX_ARCHITECTURES=${BRIDGE_MACOS_ARCH:-$(uname -m)}"
+else
+  BRIDGE_CMAKE_MACOS_OPTS=""
+fi
+
 cmake  \
     -DCMAKE_BUILD_TYPE="${BUILD_CONFIG}" \
     -DBRIDGE_APP_FULL_NAME="${BRIDGE_APP_FULL_NAME}" \
     -DBRIDGE_VENDOR="${BRIDGE_VENDOR}" \
-    -DBRIDGE_APP_VERSION="${BRIDGE_APP_VERSION}" \
+    -DBRIDGE_APP_VERSION="${BRIDGE_APP_VERSION}" "${BRIDGE_CMAKE_MACOS_OPTS}" \
     -G Ninja \
     -S . \
     -B "${BUILD_DIR}"

internal/frontend/bridge-gui/bridge-gui/vcpkg/triplets/arm64-osx-min-11-0.cmake

@@ -0,0 +1,8 @@
+set(VCPKG_TARGET_ARCHITECTURE arm64)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+
+set(VCPKG_CMAKE_SYSTEM_NAME Darwin)
+set(VCPKG_OSX_ARCHITECTURES arm64)
+set(VCPKG_OSX_DEPLOYMENT_TARGET "11.0")
+

internal/frontend/bridge-gui/bridge-gui/vcpkg/triplets/x64-osx-min-11-0.cmake

@@ -0,0 +1,7 @@
+set(VCPKG_TARGET_ARCHITECTURE x64)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+
+set(VCPKG_CMAKE_SYSTEM_NAME Darwin)
+set(VCPKG_OSX_ARCHITECTURES x86_64)
+set(VCPKG_OSX_DEPLOYMENT_TARGET "11.0")

internal/frontend/bridge-gui/bridgepp/CMakeLists.txt

@@ -59,7 +59,7 @@ message(STATUS "protoc found ${PROTOC_EXE}")
 
 message(STATUS "grpc_cpp_plugin ${grpc_cpp_plugin}")
 
-find_program(GRPC_CPP_PLUGIN grpc_cpp_plugin)
+find_program(GRPC_CPP_PLUGIN grpc_cpp_plugin HINTS "${VCPKG_ROOT}/installed/arm64-osx/tools/grpc" "${VCPKG_ROOT}/installed/x64-osx/tools/grpc")
 if (NOT GRPC_CPP_PLUGIN)
     message(FATAL_ERROR "grpc_cpp_plugin exe could not be found. Please add it to your path. it should be located in \${VCPKG_ROOT}/installed/arm64-osx/tools/grpc")
 else ()