nixpkgs/pkgs/applications/science/robotics/mujoco/sdflib-system-deps.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 251c456..3d30231 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@ option(SDFLIB_USE_SYSTEM_GLM "Use glm library via find_package instead of downlo
 option(SDFLIB_USE_SYSTEM_SPDLOG "Use spdlog library via find_package instead of downloading it" OFF)
 option(SDFLIB_USE_SYSTEM_CEREAL "Use cereal library via find_package instead of downloading it" OFF)
 option(SDFLIB_USE_SYSTEM_ASSIMP "Use assimp library via find_package instead of downloading it" OFF)
-
+option(SDFLIB_USE_SYSTEM_TRIANGLEMESHDISTANCE "Use TriangleMeshDistance library via system includes instead of downloading it" OFF)
 
 if(SDFLIB_DEBUG_INFO)
     add_compile_definitions(SDFLIB_PRINT_STATISTICS)
@@ -55,13 +55,52 @@ file(GLOB UTILS_SOURCE_FILES src/utils/*.cpp)
 file(GLOB UTILS_HEADER_FILES src/utils/*.h)
 
 # Add libraries
-add_library(${PROJECT_NAME} STATIC  ${SOURCE_FILES} ${HEADER_FILES} ${PUBLIC_HEADER_FILES}
-                                    ${SDF_SOURCE_FILES} ${SDF_HEADER_FILES}
-                                    ${UTILS_SOURCE_FILES} ${UTILS_HEADER_FILES})
-
-target_include_directories(${PROJECT_NAME} PUBLIC include/)
+add_library(${PROJECT_NAME} ${SOURCE_FILES} ${HEADER_FILES} ${PUBLIC_HEADER_FILES}
+                            ${SDF_SOURCE_FILES} ${SDF_HEADER_FILES}
+                            ${UTILS_SOURCE_FILES} ${UTILS_HEADER_FILES})
+add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
+if(BUILD_SHARED_LIBS AND WIN32)
+    set_target_properties(${PROJECT_NAME} PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+endif()
+include(GNUInstallDirs)
+target_include_directories(${PROJECT_NAME} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+                                                  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
 target_include_directories(${PROJECT_NAME} PRIVATE src/)
 
+# Install library and CMake config files
+install(TARGETS ${PROJECT_NAME} EXPORT ${PROJECT_NAME})
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/SdfLib
+        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+install(EXPORT ${PROJECT_NAME}
+        FILE ${PROJECT_NAME}Targets.cmake
+        DESTINATION lib/cmake/${PROJECT_NAME}
+        NAMESPACE ${PROJECT_NAME}::
+)
+
+include(CMakePackageConfigHelpers)
+set(PACKAGE_DEPENDENCIES "")
+if(SDFLIB_USE_SYSTEM_GLM)
+    string(APPEND PACKAGE_DEPENDENCIES "find_dependency(glm)\n")
+endif()
+if(SDFLIB_USE_SYSTEM_SPDLOG)
+    string(APPEND PACKAGE_DEPENDENCIES "find_dependency(spdlog)\n")
+endif()
+if(SDFLIB_USE_SYSTEM_CEREAL)
+    string(APPEND PACKAGE_DEPENDENCIES "find_dependency(cereal)\n")
+endif()
+if(SDFLIB_USE_ASSIMP AND SDFLIB_USE_SYSTEM_ASSIMP)
+    string(APPEND PACKAGE_DEPENDENCIES "find_dependency(assimp)\n")
+endif()
+
+configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}Config.cmake.in
+                              "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+                              INSTALL_DESTINATION "lib/cmake/${PROJECT_NAME}"
+                              NO_SET_AND_CHECK_MACRO
+                              NO_CHECK_REQUIRED_COMPONENTS_MACRO)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+        DESTINATION lib/cmake/${PROJECT_NAME})
+
 # Add shaders
 file(GLOB SHADER_FILES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}/src/render_engine/shaders 
                        src/render_engine/shaders/*.frag 
@@ -69,7 +108,7 @@ file(GLOB SHADER_FILES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}/src/render_engine/sh
                        src/render_engine/shaders/*.comp)
 
 foreach(SHADER IN LISTS SHADER_FILES)
-    add_custom_command(OUTPUT ${SHADER}
+add_custom_command(OUTPUT ${SHADER}
             COMMAND cmake -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/src/render_engine/shaders/${SHADER} $<TARGET_FILE_DIR:${PROJECT_NAME}>/shaders/${SHADER}
             DEPENDS src/render_engine/shaders/${SHADER}
         )
@@ -112,7 +151,10 @@ endif()
 target_link_libraries(${PROJECT_NAME} PUBLIC ${SDFLIB_GLM_TARGET})
 target_link_libraries(${PROJECT_NAME} PUBLIC spdlog::spdlog)
 target_link_libraries(${PROJECT_NAME} PUBLIC cereal::cereal)
-target_link_libraries(${PROJECT_NAME} PUBLIC icg)
+
+if(NOT SDFLIB_USE_SYSTEM_TRIANGLEMESHDISTANCE)
+    target_link_libraries(${PROJECT_NAME} PUBLIC TriangleMeshDistance)
+endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES GNU)
     target_link_libraries(${PROJECT_NAME} PUBLIC -lstdc++fs)
diff --git a/SdfLibConfig.cmake.in b/SdfLibConfig.cmake.in
new file mode 100644
index 0000000..9b8265c
--- /dev/null
+++ b/SdfLibConfig.cmake.in
@@ -0,0 +1,7 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+@PACKAGE_DEPENDENCIES@
+
+include("${CMAKE_CURRENT_LIST_DIR}/SdfLibTargets.cmake")
diff --git a/include/SdfLib/TrianglesInfluence.h b/include/SdfLib/TrianglesInfluence.h
index fc2ca52..b276f23 100644
--- a/include/SdfLib/TrianglesInfluence.h
+++ b/include/SdfLib/TrianglesInfluence.h
@@ -11,7 +11,7 @@
 #include "InterpolationMethods.h"
 #include "utils/Timer.h"
 #include "utils/GJK.h"
-#include <InteractiveComputerGraphics/TriangleMeshDistance.h>
+#include <tmd/TriangleMeshDistance.h>
 
 #include <vector>
 #include <array>
diff --git a/libs/CMakeLists.txt b/libs/CMakeLists.txt
index 79f70c1..e2a4f10 100644
--- a/libs/CMakeLists.txt
+++ b/libs/CMakeLists.txt
@@ -137,9 +137,10 @@ if(SDFLIB_BUILD_APPS OR SDFLIB_BUILD_DEBUG_APPS)
 	target_include_directories(stb_image INTERFACE stb)
  endif()
 
-# icg
-add_library(icg INTERFACE)
-target_include_directories(icg INTERFACE InteractiveComputerGraphics)
+if (NOT SDFLIB_USE_SYSTEM_TRIANGLEMESHDISTANCE)
+	add_library(TriangleMeshDistance INTERFACE)
+	target_include_directories(TriangleMeshDistance INTERFACE InteractiveComputerGraphics)
+endif()
 
 if(SDFLIB_BUILD_APPS OR SDFLIB_BUILD_DEBUG_APPS)
 	# glfw
diff --git a/libs/InteractiveComputerGraphics/InteractiveComputerGraphics/TriangleMeshDistance.h b/libs/InteractiveComputerGraphics/tmd/TriangleMeshDistance.h
similarity index 100%
rename from libs/InteractiveComputerGraphics/InteractiveComputerGraphics/TriangleMeshDistance.h
rename to libs/InteractiveComputerGraphics/tmd/TriangleMeshDistance.h
diff --git a/src/tools/ImageQueryTime/main.cpp b/src/tools/ImageQueryTime/main.cpp
index 357a78b..f4fd9e7 100644
--- a/src/tools/ImageQueryTime/main.cpp
+++ b/src/tools/ImageQueryTime/main.cpp
@@ -17,7 +17,7 @@
 
 #define TEST_METHODS 
 #ifdef TEST_METHODS
-#include <InteractiveComputerGraphics/TriangleMeshDistance.h>
+#include <tmd/TriangleMeshDistance.h>
 // #include <CGAL/Simple_cartesian.h>
 // #include <CGAL/AABB_tree.h>
 // #include <CGAL/AABB_traits.h>
diff --git a/src/tools/SdfErrorCompare/main.cpp b/src/tools/SdfErrorCompare/main.cpp
index deef25f..9e402c4 100644
--- a/src/tools/SdfErrorCompare/main.cpp
+++ b/src/tools/SdfErrorCompare/main.cpp
@@ -23,7 +23,7 @@ using namespace sdflib;
 // #define TEST_OPENVDB
 
 #ifdef TEST_ICG
-#include <InteractiveComputerGraphics/TriangleMeshDistance.h>
+#include <tmd/TriangleMeshDistance.h>
 #endif
 #ifdef TEST_CGAL
 #include <CGAL/Simple_cartesian.h>
diff --git a/src/tools/SdfLibUnity/SdfExportFunc.cpp b/src/tools/SdfLibUnity/SdfExportFunc.cpp
index ff4e017..7e06ada 100644
--- a/src/tools/SdfLibUnity/SdfExportFunc.cpp
+++ b/src/tools/SdfLibUnity/SdfExportFunc.cpp
@@ -1,7 +1,7 @@
 #include "SdfExportFunc.h"
 #include "spdlog/sinks/rotating_file_sink.h"
 
-#include <InteractiveComputerGraphics/TriangleMeshDistance.h>
+#include <tmd/TriangleMeshDistance.h>
 
 using namespace sdflib;
 
diff --git a/src/tools/SdfOffsets/main.cpp b/src/tools/SdfOffsets/main.cpp
index b6769d7..07f137b 100644
--- a/src/tools/SdfOffsets/main.cpp
+++ b/src/tools/SdfOffsets/main.cpp
@@ -9,7 +9,7 @@
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/gtc/matrix_transform.hpp>
 
-#include <InteractiveComputerGraphics/TriangleMeshDistance.h>
+#include <tmd/TriangleMeshDistance.h>
 #include <CGAL/Surface_mesh_default_triangulation_3.h>
 #include <CGAL/Complex_2_in_triangulation_3.h>
 #include <CGAL/make_surface_mesh.h>