added cmake install target, and various cleanups

CMakeLists.txt

@@ -110,3 +110,68 @@ if (BUILD_TESTING)
   enable_testing()
 endif()
 
+
+
+# ------------------------------------------------------------------
+# cmake install stuff
+# ------------------------------------------------------------------
+
+set(OWL_CMAKE_INSTALL_DESTINATION
+  ${CMAKE_INSTALL_LIBDIR}/cmake/owl-${OWL_VERSION}
+)
+
+include(CMakePackageConfigHelpers)
+
+configure_package_config_file(
+  "${PROJECT_SOURCE_DIR}/owl/cmake/owlConfig.cmake.in"
+  "${PROJECT_BINARY_DIR}/owlConfig.cmake"
+  INSTALL_DESTINATION
+  ${OWL_CMAKE_INSTALL_DESTINATION}
+)
+
+write_basic_package_version_file(
+    "owlConfigVersion.cmake"
+    VERSION ${OWL_VERSION}
+    COMPATIBILITY SameMajorVersion
+)
+
+install(FILES
+  ${CMAKE_CURRENT_BINARY_DIR}/owlConfig.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/owlConfigVersion.cmake
+  DESTINATION
+  ${OWL_CMAKE_INSTALL_DESTINATION}
+  )
+
+install(DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/cmake
+  DESTINATION
+    ${OWL_CMAKE_INSTALL_DESTINATION}
+  FILES_MATCHING
+    PATTERN *.cmake
+    PATTERN Findowl.cmake EXCLUDE
+)
+
+set(OWL_INSTALL_TARGETS owl owl_static)
+
+install(
+  TARGETS
+  ${OWL_INSTALL_TARGETS}
+  EXPORT owl-config
+  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  NAMELINK_SKIP
+  # on Windows put the dlls into bin
+  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+  # ... and the import lib into the devel package
+  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
+install(EXPORT owl-config
+  DESTINATION ${OWL_CMAKE_INSTALL_DESTINATION}
+  NAMESPACE owl::
+  )
+
+install(
+#  DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/owl
+  DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/owl
+  DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}
+  )
+
+

include/owl/owl_host.h

@@ -26,28 +26,30 @@
 # define OWL_CAN_DO_SPHERES 1
 #endif
 
-
-#if defined(_MSC_VER)
-#  define OWL_DLL_EXPORT __declspec(dllexport)
-#  define OWL_DLL_IMPORT __declspec(dllimport)
+#ifdef _WIN32
+# if defined(owl_STATIC) || defined(owl_mpi_STATIC)
+#  define OWL_INTERFACE /* nothing */
+# elif defined(owl_EXPORTS) || defined(owl_mpi_EXPORTS)
+#  define OWL_INTERFACE __declspec(dllexport)
+# else
+#  define OWL_INTERFACE __declspec(dllimport)
+# endif
 #elif defined(__clang__) || defined(__GNUC__)
-#  define OWL_DLL_EXPORT __attribute__((visibility("default")))
-#  define OWL_DLL_IMPORT __attribute__((visibility("default")))
+#  define OWL_INTERFACE __attribute__((visibility("default")))
 #else
-#  define OWL_DLL_EXPORT
-#  define OWL_DLL_IMPORT
+#  define OWL_INTERFACE
 #endif
 
 #ifdef __cplusplus
-# define OWL_IF_CPP(a) a
+#  define OWL_IF_CPP(a) a
 #else
-# define OWL_IF_CPP(a) /* drop it */
+#  define OWL_IF_CPP(a) /* ignore */
 #endif
 
 #  ifdef __cplusplus
-#    define OWL_API extern "C" OWL_DLL_EXPORT
+#    define OWL_API extern "C" OWL_INTERFACE
 #  else
-#    define OWL_API /* bla */
+#    define OWL_API /* bla */ OWL_INTERFACE
 #  endif
 
 

owl/CMakeLists.txt

@@ -9,28 +9,28 @@ set(OWL_SOURCES
   # -------------------------------------------------------
   # infrastructure
   # -------------------------------------------------------
-  include/owl/owl.h
-  include/owl/owl_host.h
-  include/owl/owl_device.h
-  include/owl/common/arrayND/array2D.h
-  include/owl/common/arrayND/array3D.h
-  include/owl/common/math/AffineSpace.h
-  include/owl/common/math/box.h
-  include/owl/common/math/constants.h
-  include/owl/common/math/fixedpoint.h
-  include/owl/common/math/LinearSpace.h
-  include/owl/common/math/Quaternion.h
-  include/owl/common/math/random.h
-  include/owl/common/math/vec/compare.h
-  include/owl/common/math/vec/functors.h
-  include/owl/common/math/vec/rotate.h
-  include/owl/common/math/vec.h
-  include/owl/common/owl-common.h
-  include/owl/common/parallel/parallel_for.h
-  include/owl/owl.h
-  include/owl/owl_device.h
-  include/owl/owl_device_buffer.h
-  include/owl/owl_host.h
+  ../include/owl/owl.h
+  ../include/owl/owl_host.h
+  ../include/owl/owl_device.h
+  ../include/owl/common/arrayND/array2D.h
+  ../include/owl/common/arrayND/array3D.h
+  ../include/owl/common/math/AffineSpace.h
+  ../include/owl/common/math/box.h
+  ../include/owl/common/math/constants.h
+  ../include/owl/common/math/fixedpoint.h
+  ../include/owl/common/math/LinearSpace.h
+  ../include/owl/common/math/Quaternion.h
+  ../include/owl/common/math/random.h
+  ../include/owl/common/math/vec/compare.h
+  ../include/owl/common/math/vec/functors.h
+  ../include/owl/common/math/vec/rotate.h
+  ../include/owl/common/math/vec.h
+  ../include/owl/common/owl-common.h
+  ../include/owl/common/parallel/parallel_for.h
+#  ../include/owl/owl.h
+#  ../include/owl/owl_device.h
+#  ../include/owl/owl_device_buffer.h
+#  ../include/owl/owl_host.h
   helper/cuda.h
   helper/optix.h
   common.h
@@ -150,8 +150,17 @@ target_link_libraries(owl-config INTERFACE
 if (OWL_CUDA_STATIC)
   target_compile_definitions(owl-config INTERFACE -DOWL_CUDA_STATIC=1)
 endif()
-target_link_libraries(owl PUBLIC owl-config)
-target_link_libraries(owl_static PUBLIC owl-config)
+target_link_libraries(owl PUBLIC
+  $<BUILD_INTERFACE:owl-config>
+)
+target_link_libraries(owl_static PUBLIC
+  $<BUILD_INTERFACE:owl-config>
+)
+if (APPLE)
+  set_target_properties(owl PROPERTIES INSTALL_RPATH "$loader_path")
+else()
+  set_target_properties(owl PROPERTIES INSTALL_RPATH "$ORIGIN")
+endif()
 
 if (OWL_HAVE_TBB AND TBB_FOUND)
   if (TARGET TBB::tbb)
@@ -183,7 +192,8 @@ endif()
 target_include_directories(owl-config
   INTERFACE
     ${PROJECT_SOURCE_DIR}
-    ${CMAKE_CURRENT_LIST_DIR}/include
+    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+    #CMAKE_CURRENT_LIST_DIR}/include
 )
 
 if (WIN32)

owl/cmake/owlConfig.cmake.in

@@ -0,0 +1,43 @@
+## Copyright 2021-2024 The Khronos Group
+## SPDX-License-Identifier: Apache-2.0
+
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_dependency(Threads)
+
+include(${CMAKE_CURRENT_LIST_DIR}/owl-config.cmake)
+
+if (NOT TARGET owl::owl)
+  message(FATAL_ERROR "CMAKE_PREFIX_PATH or owl_DIR are pointing to a \
+  owl build directory. Please do a full install of owl \
+  (e.g. 'make install') and point to where you installed it \
+  (CMAKE_INSTALL_PREFIX in your build of owl). \
+  Consuming owl from a build directory is not supported.")
+endif()
+set(owl_FOUND ON)
+
+set(OWL_DATAROOTDIR
+  ${CMAKE_CURRENT_LIST_DIR}/../../../@CMAKE_INSTALL_DATAROOTDIR@/owl
+  )
+
+if (@OWL_MPI@)
+  find_dependency(MPI)
+  set(OWL_FEATURE_MPI ON)
+endif()
+
+
+foreach(component ${owl_FIND_COMPONENTS})
+  # For requested component, execute its "config" script
+  message("cfind component ${component}")
+  if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/${component}-config.cmake")
+    include(${CMAKE_CURRENT_LIST_DIR}/${component}-config.cmake)
+    set(${component}_FOUND ON)
+  else()
+    set(${component}_FOUND OFF)
+  endif()
+endforeach()
+
+check_required_components(@PROJECT_NAME@)

owl/include/owl/owl_device_buffer.h → owl/owl_device_buffer.h

@@ -5,7 +5,7 @@
 
 #pragma once
 
-#include "owl_host.h"
+#include "owl/owl_host.h"
 
 namespace owl {
   namespace device {