external/coinmp: -fsanitize=nonnull-attribute

Change-Id: I487e772395defa9aae2ce3eb040b8c7d92720cb2

external/coinmp/UnpackedTarball_coinmp.mk

@@ -26,6 +26,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,coinmp,\
 	) \
 	$(if $(filter MACOSX,$(OS)),external/coinmp/macosx.build.patch.1) \
 	external/coinmp/werror-format-pedantic.patch.0 \
+	external/coinmp/ubsan.patch.0 \
 ))
 
 # vim: set noet sw=4 ts=4:

external/coinmp/ubsan.patch.0

+--- Clp/src/ClpParameters.hpp
++++ Clp/src/ClpParameters.hpp
+@@ -81,7 +81,7 @@
+ template <class T> inline void
+ ClpDisjointCopyN( const T * array, const int size, T * newArray)
+ {
+-     memcpy(reinterpret_cast<void *> (newArray), array, size * sizeof(T));
++     if (size != 0) memcpy(reinterpret_cast<void *> (newArray), array, size * sizeof(T));
+ }
+ /// And set
+ template <class T> inline void