Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -1 +1,3 @@
 cmake_minimum_required(VERSION 3.1)
+
+add_subdirectory(acxxel)
Index: acxxel/CMakeLists.txt
===================================================================
--- acxxel/CMakeLists.txt
+++ acxxel/CMakeLists.txt
@@ -2,18 +2,27 @@
 
 option(ACXXEL_ENABLE_UNIT_TESTS "enable acxxel unit tests" ON)
 option(ACXXEL_ENABLE_EXAMPLES "enable acxxel examples" OFF)
-option(ACXXEL_ENABLE_DOXYGEN "enable Doxygen for acxxel" OFF)
 option(ACXXEL_ENABLE_CUDA "enable CUDA for acxxel" ON)
 option(ACXXEL_ENABLE_OPENCL "enable OpenCL for acxxel" ON)
 
-project(acxxel)
+option(
+    ACXXEL_INCLUDE_DOCS
+    "Generate build targets for the acxxel docs"
+    ${LLVM_INCLUDE_DOCS})
+
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    project(acxxel)
+    set(ACXXEL_BUILT_STANDALONE TRUE)
+endif()
 
 if(ACXXEL_ENABLE_CUDA)
 find_package(CUDA REQUIRED)
 include_directories(${CUDA_INCLUDE_DIRS})
 find_library(CUDA_DRIVER_LIBRARY cuda)
 if(NOT CUDA_DRIVER_LIBRARY)
-    message(FATAL_ERROR "could not find libcuda, is the CUDA driver installed on your system?")
+    message(
+        FATAL_ERROR
+        "could not find libcuda, is the CUDA driver installed on your system?")
 endif(NOT CUDA_DRIVER_LIBRARY)
 set(ACXXEL_CUDA_SOURCES cuda_acxxel.cpp)
 set(ACXXEL_CUDA_LIBRARIES ${CUDA_DRIVER_LIBRARY} ${CUDA_LIBRARIES})
@@ -60,16 +69,6 @@
     add_subdirectory(tests)
 endif()
 
-if(ACXXEL_ENABLE_DOXYGEN)
-    find_package(Doxygen REQUIRED)
-    configure_file(Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
-    add_custom_target(
-        acxxel-doc
-        ${DOXYGEN_EXECUTABLE}
-        ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
-        WORKING_DIRECTORY
-        ${CMAKE_CURRENT_BINARY_DIR}
-        COMMENT
-        "Generating acxxel API documentation with Doxygen"
-        VERBATIM)
+if(ACXXEL_INCLUDE_DOCS)
+    add_subdirectory(docs)
 endif()
Index: acxxel/customdoxygen.css
===================================================================
--- /dev/null
+++ acxxel/customdoxygen.css
@@ -1,20 +0,0 @@
-body {
-  background-color: #e0e0eb;
-}
-
-div.header {
-  margin-left: auto;
-  margin-right: auto;
-  max-width: 60em;
-  padding-left: 2em;
-  padding-right: 2em;
-}
-
-div.contents {
-  margin-left: auto;
-  margin-right: auto;
-  max-width: 60em;
-  background-color: white;
-  padding: 2em;
-  border-radius: 1em;
-}
Index: acxxel/docs/CMakeLists.txt
===================================================================
--- /dev/null
+++ acxxel/docs/CMakeLists.txt
@@ -0,0 +1,31 @@
+if(ACXXEL_BUILT_STANDALONE)
+    find_package(Doxygen REQUIRED)
+endif()
+
+if(DOXYGEN_FOUND)
+    if(LLVM_ENABLE_DOXYGEN OR ACXXEL_BUILT_STANDALONE)
+        configure_file(Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
+        add_custom_target(
+            doxygen-acxxel
+            COMMAND
+            ${DOXYGEN_EXECUTABLE}
+            ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+            WORKING_DIRECTORY
+            ${CMAKE_CURRENT_BINARY_DIR}
+            COMMENT
+            "Generating acxxel doxygen documentation"
+            VERBATIM)
+
+        if(LLVM_BUILD_DOCS)
+            add_dependencies(doxygen doxygen-acxxel)
+        endif()
+
+        if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+            install(
+                DIRECTORY
+                ${CMAKE_CURRENT_BINARY_DIR}/docs/html
+                DESTINATION
+                docs/html)
+        endif()
+    endif()
+endif(DOXYGEN_FOUND)
Index: acxxel/docs/Doxyfile.in
===================================================================
--- acxxel/docs/Doxyfile.in
+++ acxxel/docs/Doxyfile.in
@@ -743,7 +743,7 @@
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = @CMAKE_CURRENT_SOURCE_DIR@
+INPUT                  = @CMAKE_CURRENT_SOURCE_DIR@/..
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
@@ -811,7 +811,7 @@
 # that contain example code fragments that are included (see the \include
 # command).
 
-EXAMPLE_PATH           = @CMAKE_CURRENT_SOURCE_DIR@/examples
+EXAMPLE_PATH           = @CMAKE_CURRENT_SOURCE_DIR@/../examples
 
 # If the value of the EXAMPLE_PATH tag contains directories, you can use the
 # EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
@@ -1540,7 +1540,7 @@
 # If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
 # The default value is: YES.
 
-GENERATE_LATEX         = YES
+GENERATE_LATEX         = NO
 
 # The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
 # relative path is entered the value of OUTPUT_DIRECTORY will be put in front of