From 0e09032c40f62cf5030035d6400941e7a44a9f21 Mon Sep 17 00:00:00 2001
From: Enric Tejedor Saavedra <enric.tejedor.saavedra@cern.ch>
Date: Thu, 23 May 2019 11:31:02 +0200
Subject: [PATCH] [Exp PyROOT] Disable strict-aliasing warnings
The warnings are triggered by the use of the Py_RETURN_TRUE and
Py_RETURN_FALSE macros of the Python C API. The use of such macros
is necessary and cannot be worked around.
The option is disabled on Windows since it does not exist.
---
bindings/pyroot_experimental/PyROOT/CMakeLists.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/bindings/pyroot_experimental/PyROOT/CMakeLists.txt b/bindings/pyroot_experimental/PyROOT/CMakeLists.txt
index e62b87c76ff..39e648c73c4 100644
--- a/bindings/pyroot_experimental/PyROOT/CMakeLists.txt
+++ b/bindings/pyroot_experimental/PyROOT/CMakeLists.txt
@@ -62,6 +62,11 @@ endforeach()
ROOT_LINKER_LIBRARY(ROOTPython ${sources} LIBRARIES Core Tree cppyy)
ROOT_INSTALL_HEADERS(inc)
+# Disables warnings caused by Py_RETURN_TRUE/Py_RETURN_FALSE
+if(NOT MSVC)
+ target_compile_options(ROOTPython PRIVATE -Wno-strict-aliasing)
+endif()
+
# Disables warnings originating from deprecated register keyword in Python
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_STANDARD GREATER_EQUAL 11)
target_compile_options(ROOTPython PRIVATE -Wno-register)
--
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