Add flags to tell compiler not to default to builtin malloc.
This makes sure that all places use tcmalloc.
Signed-off-by: Henner Zeller <h.zeller@acm.org>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8278311..708b8b6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,9 +53,10 @@
set(CMAKE_BUILD_DIRECTORY ${dir})
# C++
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MY_CXX_WARNING_FLAGS}")
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g ${MY_CXX_WARNING_FLAGS}")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG ${MY_CXX_WARNING_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free ${MY_CXX_WARNING_FLAGS}")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free -O0 -g ${MY_CXX_WARNING_FLAGS}")
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free -O3 -DNDEBUG ${MY_CXX_WARNING_FLAGS}")
+
# Compiler-specific C++11 activation.
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Intel")
execute_process(
