libcsp build failure

[donpdonp]

after installing the gcc-plugin-dev and unpacking libcsp-0.0.1.tar.gz and running configure, I get the following error from Ubuntu 18.04/gcc 7.5

libcsp-0.0.1$ make
make  all-am
make[1]: Entering directory '/home/donp/projects/v/libcsp-0.0.1'
depbase=`echo plugin/plugin.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
/bin/bash ./libtool  --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I.    -I `gcc -print-file-name=plugin`/include -O3 -MT plugin/plugin.lo -MD -MP -MF $depbase.Tpo -c -o plugin/plugin.lo plugin/plugin.cpp &&\
mv -f $depbase.Tpo $depbase.Plo
libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I /usr/lib/gcc/x86_64-linux-gnu/7/plugin/include -O3 -MT plugin/plugin.lo -MD -MP -MF plugin/.deps/plugin.Tpo -c plugin/plugin.cpp  -fPIC -DPIC -o plugin/.libs/plugin.o
In file included from plugin/plugin.cpp:22:0:
plugin/proc.hpp: In function ‘std::__cxx11::string csp::get_callee_name(tree)’:
plugin/proc.hpp:83:49: error: ‘TDF_VOPS’ was not declared in this scope
   dump_generic_node(&pp, CALL_EXPR_FN(call), 0, TDF_VOPS|TDF_MEMSYMS, false);
                                                 ^~~~~~~~

[shiyanhui]

The version of gcc should be at least 8. See https://libcsp.com/installation/.