[sentry-native] Add ability to control SENTRY_BACKEND variable (#13362)

ports/sentry-native/CONTROL

@@ -1,6 +1,6 @@
 Source: sentry-native
 Version: 0.4.0
-Port-Version: 1
+Port-Version: 2
 Homepage: https://sentry.io/
 Description: Sentry SDK for C, C++ and native applications.
 Build-Depends: curl (!windows)

ports/sentry-native/portfile.cmake

@@ -12,6 +12,18 @@ vcpkg_extract_source_archive_ex(
     NO_REMOVE_ONE_LEVEL
 )
 
+if (NOT DEFINED SENTRY_BACKEND)
+    if(MSVC AND CMAKE_GENERATOR_TOOLSET MATCHES "_xp$")
+        set(SENTRY_BACKEND "breakpad")
+    elseif(APPLE OR WIN32)
+        set(SENTRY_BACKEND "crashpad")
+    elseif(LINUX)
+        set(SENTRY_BACKEND "breakpad")
+    else()
+        set(SENTRY_BACKEND "inproc")
+    endif()
+endif()
+
 if (VCPKG_TARGET_IS_WINDOWS)
     set(SENTRY_NATIVE_C_STANDARD 99)
 else()
@@ -26,6 +38,7 @@ vcpkg_configure_cmake(
         -DSENTRY_BUILD_TESTS=OFF
         -DSENTRY_BUILD_EXAMPLES=OFF
         -DCMAKE_C_STANDARD=${SENTRY_NATIVE_C_STANDARD}
+        -DSENTRY_BACKEND=${SENTRY_BACKEND}
 )
 
 vcpkg_install_cmake()
@@ -36,7 +49,7 @@ file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
 
 vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/sentry TARGET_PATH share/sentry)
 
-if (WIN32)
+if (WIN32 AND SENTRY_BACKEND STREQUAL "crashpad")
     vcpkg_copy_tools(
         TOOL_NAMES crashpad_handler
         AUTO_CLEAN