From 148454b08077cd631750a5de95f3d912f2e56417 Mon Sep 17 00:00:00 2001 From: Andrew Seidl Date: Fri, 14 Oct 2022 10:44:51 -0500 Subject: [PATCH 4/6] cmake: add option to enable/disable RTTI --- CMakeLists.txt | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index c5d2c2e..0403fd7 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -37,6 +37,8 @@ if(NOT CMAKE_CXX_STANDARD) set(CMAKE_CXX_EXTENSIONS OFF) endif(NOT CMAKE_CXX_STANDARD) +option(SNAPPY_ENABLE_RTTI "Enable RTTI" OFF) + # https://github.com/izenecloud/cmake/blob/master/SetCompilerWarningAll.cmake if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") # Use the highest warning level for Visual Studio. @@ -53,8 +55,10 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") add_definitions(-D_HAS_EXCEPTIONS=0) # Disable RTTI. - string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-") + if(NOT SNAPPY_ENABLE_RTTI) + string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-") + endif(SNAPPY_ENABLE_RTTI) else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") # Use -Wall for clang and gcc. if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall") @@ -83,8 +87,10 @@ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions") # Disable RTTI. - string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti") + if(NOT SNAPPY_ENABLE_RTTI) + string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti") + endif(SNAPPY_ENABLE_RTTI) endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") # BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make -- 2.39.3 (Apple Git-146)