CMake: add ENABLE_RTTI option (#4382)
Fixes
$ CXX=clang++ cmake -H. -Bout -DSPIRV_USE_SANITIZER=vptr
$ make -C out
...
clang: error: invalid argument '-fsanitize=vptr' not allowed with '-fno-rtti'
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3568949..84a7bb7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,6 +33,7 @@
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_CXX_STANDARD 11)
+option(ENABLE_RTTI "Enables RTTI" OFF)
option(SPIRV_ALLOW_TIMERS "Allow timers via clock_gettime on supported platforms" ON)
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
@@ -178,11 +179,14 @@
target_compile_options(${TARGET} PRIVATE ${SPIRV_WARNINGS})
if (${COMPILER_IS_LIKE_GNU})
- target_compile_options(${TARGET} PRIVATE
- -std=c++11 -fno-exceptions -fno-rtti)
+ target_compile_options(${TARGET} PRIVATE -std=c++11 -fno-exceptions)
target_compile_options(${TARGET} PRIVATE
-Wall -Wextra -Wno-long-long -Wshadow -Wundef -Wconversion
-Wno-sign-conversion)
+
+ if(NOT ENABLE_RTTI)
+ add_compile_options(-fno-rtti)
+ endif()
# For good call stacks in profiles, keep the frame pointers.
if(NOT "${SPIRV_PERF}" STREQUAL "")
target_compile_options(${TARGET} PRIVATE -fno-omit-frame-pointer)
