This is a gcc/clang extension, not standard C++
---
CMakeLists.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6dd010b6ae..249566f1e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -205,6 +205,13 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
if(COMPILER_SUPPORTS_WSUGGEST_OVERRIDE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsuggest-override")
endif()
+
+ CHECK_CXX_COMPILER_FLAG("-Wvla" COMPILER_SUPPORTS_WVLA)
+
+ if(COMPILER_SUPPORTS_WVLA)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=vla")
+ endif()
+
endif()
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