[CMAKE] Build host-tools as release by default

This setting can be overwritten by defining the CMake variable HOST_BUILD_TYPE.
The target build type is passed to the host build as TARGET_BUILD_TYPE CMake variable.
This improves time to build cab+iso:
MSVC x86: 37s -> 28s
GCC x86: 32s -> 16s

Author: tkreuzer

sdk/cmake/host-tools.cmake

@@ -91,6 +91,10 @@ function(setup_host_tools)
             )
     endif()
 
+    if(NOT DEFINED HOST_BUILD_TYPE)
+        set(HOST_BUILD_TYPE Release)
+    endif()
+
     ExternalProject_Add(host-tools
         SOURCE_DIR ${REACTOS_SOURCE_DIR}
         PREFIX ${REACTOS_BINARY_DIR}/host-tools
@@ -102,6 +106,8 @@ function(setup_host_tools)
             -DCMAKE_INSTALL_PREFIX=${REACTOS_BINARY_DIR}/host-tools
             -DTOOLS_FOLDER=${REACTOS_BINARY_DIR}/host-tools/bin
             -DTARGET_COMPILER_ID=${CMAKE_C_COMPILER_ID}
+            -DTARGET_BUILD_TYPE=${CMAKE_BUILD_TYPE}
+            -DCMAKE_BUILD_TYPE=${HOST_BUILD_TYPE}
             ${CMAKE_HOST_TOOLS_EXTRA_ARGS}
         BUILD_ALWAYS TRUE
         INSTALL_COMMAND ${CMAKE_COMMAND} -E true

sdk/tools/CMakeLists.txt

@@ -48,6 +48,10 @@ if ((ARCH STREQUAL "amd64") AND (TARGET_COMPILER_ID STREQUAL "GNU"))
     add_subdirectory(gcc_plugin_seh)
 endif()
 
+if (TARGET_BUILD_TYPE)
+    # Silence warning about unused variable
+endif()
+
 if(NOT MSVC)
     add_host_tool(pefixup pefixup.c)
     if (ARCH STREQUAL "amd64" OR ARCH STREQUAL "arm64")