Unable to use dot layout (graphviz as a library)

Question

I use graphviz (v2.28.0) as a library in a C++ application and I would like to render graphs using the dot layout. Everything works fine until I call the gvLayout(_c

Answer 1

I got this error when I added the "-O2" optimization flag to gcc when I compiled graphviz on macosx. When I removed that flag, the error went away.