Add graph references

references/igraph-1.0.1/etc/cmake/features.cmake

@@ -0,0 +1,26 @@
+include(helpers)
+
+include(tls)
+include(lto)
+
+option(IGRAPH_GLPK_SUPPORT "Compile igraph with GLPK support" ON)
+option(IGRAPH_INFOMAP_SUPPORT "Compile igraph with Infomap support" ON)
+tristate(IGRAPH_GRAPHML_SUPPORT "Compile igraph with GraphML support" AUTO)
+tristate(IGRAPH_OPENMP_SUPPORT "Use OpenMP for parallelization" AUTO)
+
+set(IGRAPH_INTEGER_SIZE AUTO CACHE STRING "Set size of igraph integers")
+set_property(CACHE IGRAPH_INTEGER_SIZE PROPERTY STRINGS AUTO 32 64)
+
+if(IGRAPH_INTEGER_SIZE STREQUAL AUTO)
+  if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(IGRAPH_INTEGER_SIZE 64)
+  else()
+    set(IGRAPH_INTEGER_SIZE 32)
+  endif()
+endif()
+
+option(FLEX_KEEP_LINE_NUMBERS "Keep references to the original line numbers in generated Flex/Bison parser files" OFF)
+mark_as_advanced(FLEX_KEEP_LINE_NUMBERS)
+
+option(BUILD_FUZZING "Build fuzz targets and enable fuzzer instrumentation" OFF)
+mark_as_advanced(BUILD_FUZZING)