How to produce dependency graphs from cmake

CMakeGraphVizOptions.cmake

# put this file in the top source dir (CMAKE_SOURCE_DIR)
# see: https://cmake.org/cmake/help/latest/module/CMakeGraphVizOptions.html

set(GRAPHVIZ_EXTERNAL_LIBS FALSE)
# only dependencies between libraries
set(GRAPHVIZ_EXECUTABLES FALSE)

create-dependency-graphs.sh

#!/bin/bash

# run from top source dir (CMAKE_SOURCE_DIR)

rm -rf build-dependency-graph
mkdir build-dependency-graph
cd build-dependency-graph

cmake --graphviz=dependencies.dot ..

mkdir -p dependencies
for i in `find . -maxdepth 1 -name "*.dot*"`;do dot -Tsvg $i > dependencies/${i#./dependencies.dot.}.svg;done

# The meaning of the node shapes in the generated graphs (taken from the cmake source):
# EXECUTABLE: house
# STATIC_LIBRARY: diamond
# SHARED_LIBRARY: polygon
# MODULE_LIBRARY: octagon