chore(CI): Add support for building toxcore and toxext for macOS

CMAKE_OSX_DEPLOYMENT_TARGET has no effect when not building for macOS.

buildscripts/build_toxcore.sh

@@ -10,7 +10,7 @@ readonly SCRIPT_DIR="$(dirname "$(realpath "$0")")"
 
 source "${SCRIPT_DIR}/build_utils.sh"
 
-parse_arch --dep "toxcore and toxext extensions" --supported "win32 win64" "$@"
+parse_arch --dep "toxcore and toxext extensions" --supported "win32 win64 macos" "$@"
 
 build_toxcore() {
     TOXCORE_SRC="$(realpath toxcore)"
@@ -26,6 +26,7 @@ build_toxcore() {
             -DENABLE_STATIC=OFF \
             -DENABLE_SHARED=ON \
             "${CMAKE_TOOLCHAIN_FILE}" \
+            "-DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOS_MINIMUM_SUPPORTED_VERSION}" \
             .
 
     cmake --build . -- "-j${MAKE_JOBS}"
@@ -45,6 +46,7 @@ build_toxext() {
     cmake "-DCMAKE_INSTALL_PREFIX=${DEP_PREFIX}" \
             -DCMAKE_BUILD_TYPE=Release \
             "${CMAKE_TOOLCHAIN_FILE}" \
+            "-DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOS_MINIMUM_SUPPORTED_VERSION}" \
             .
 
     cmake --build . -- "-j${MAKE_JOBS}"
@@ -64,6 +66,7 @@ build_toxext_messages() {
     cmake "-DCMAKE_INSTALL_PREFIX=${DEP_PREFIX}" \
             -DCMAKE_BUILD_TYPE=Release \
             "${CMAKE_TOOLCHAIN_FILE}" \
+            "-DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOS_MINIMUM_SUPPORTED_VERSION}" \
             .
     cmake --build . -- "-j${MAKE_JOBS}"
     cmake --build . --target install