I meet a error when building the igraph 7.0.1 by MS VS 2012, the error is following:
1>e:\program_lib\python\igraph\igraph-0.7.1-msvc\igraph-0.7.1-msvc\src\prpack.cpp(66): error C2146: syntax error : missing ';' before identifier 'prpack_graph'
1>e:\program_lib\python\igraph\igraph-0.7.1-msvc\igraph-0.7.1-msvc\src\prpack.cpp(66): error C3861: 'prpack_graph': identifier not found
1>e:\program_lib\python\igraph\igraph-0.7.1-msvc\igraph-0.7.1-msvc\src\prpack.cpp(67): error C2065: 'prpack_graph' : undeclared identifier