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-rw-r--r--Tests/CMakeOnly/CheckSymbolExists/CMakeLists.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Tests/CMakeOnly/CheckSymbolExists/CMakeLists.txt b/Tests/CMakeOnly/CheckSymbolExists/CMakeLists.txt
index 7656577..7f01463 100644
--- a/Tests/CMakeOnly/CheckSymbolExists/CMakeLists.txt
+++ b/Tests/CMakeOnly/CheckSymbolExists/CMakeLists.txt
@@ -39,7 +39,7 @@ else ()
endif ()
if (CMAKE_COMPILER_IS_GNUCC)
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
+ string(APPEND CMAKE_C_FLAGS " -O3")
unset(CSE_RESULT_O3 CACHE)
message(STATUS "Testing with optimization -O3")