build: fetch dependencies for Brite, Click and Openflow

Signed-off-by: Gabriel Ferreira <gabrielcarvfer@gmail.com>

CMakeLists.txt

@@ -55,6 +55,9 @@ option(NS3_NETANIM "Build netanim" OFF)
 option(NS3_ENABLE_BUILD_VERSION "Embed version info into libraries" OFF)
 option(NS3_CCACHE "Use Ccache to speed up recompilation" ON)
 option(NS3_FAST_LINKERS "Use Mold or LLD to speed up linking if available" ON)
+option(NS3_FETCH_OPTIONAL_COMPONENTS
+       "Fetch Brite, Click and Openflow dependencies" OFF
+)
 option(NS3_GSL "Build with GSL support" ON)
 option(NS3_GTK3 "Build with GTK3 support" ON)
 option(NS3_LINK_TIME_OPTIMIZATION "Build with link-time optimization" OFF)

build-support/custom-modules/ns3-fetch-optional-modules-dependencies.cmake

@@ -0,0 +1,75 @@
+include(ExternalProject)
+
+ExternalProject_Add(
+  brite_dep
+  URL https://code.nsnam.org/BRITE/archive/30338f4f63b9.zip
+  URL_HASH MD5=b36ecf8f6b5f2cfae936ba1f1bfcff5c
+  PREFIX brite_dep
+  BUILD_IN_SOURCE TRUE
+  CONFIGURE_COMMAND make
+  BUILD_COMMAND make
+  INSTALL_COMMAND make install PREFIX=${CMAKE_OUTPUT_DIRECTORY}
+)
+
+ExternalProject_Add(
+  click_dep
+  GIT_REPOSITORY https://github.com/kohler/click.git
+  GIT_TAG 9197a594b1c314264935106297aff08d97cbe7ee
+  PREFIX click_dep
+  BUILD_IN_SOURCE TRUE
+  UPDATE_DISCONNECTED TRUE
+  CONFIGURE_COMMAND ./configure --disable-linuxmodule --enable-nsclick
+                    --enable-wifi --prefix ${CMAKE_OUTPUT_DIRECTORY}
+  BUILD_COMMAND make -j${NumThreads}
+  INSTALL_COMMAND make install
+)
+
+ExternalProject_Add(
+  openflow_dep
+  URL https://code.nsnam.org/openflow/archive/d45e7d184151.zip
+  URL_HASH MD5=a068cdaec5523586921b2f1f81f10916
+  PREFIX openflow_dep
+  BUILD_IN_SOURCE TRUE
+  CONFIGURE_COMMAND ./waf configure --prefix ${CMAKE_OUTPUT_DIRECTORY}
+  BUILD_COMMAND ./waf build
+  INSTALL_COMMAND ./waf install
+)
+
+install(
+  DIRECTORY ${CMAKE_OUTPUT_DIRECTORY}/include/openflow
+  DESTINATION ${CMAKE_INSTALL_PREFIX}/include
+  USE_SOURCE_PERMISSIONS
+  PATTERN "openflow/*"
+)
+
+find_file(
+  BOOST_STATIC_ASSERT
+  NAMES static_assert.hpp
+  PATH_SUFFIXES boost
+  HINTS /usr/local
+)
+get_filename_component(boost_dir ${BOOST_STATIC_ASSERT} DIRECTORY)
+
+install(
+  DIRECTORY ${boost_dir}
+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+  USE_SOURCE_PERMISSIONS
+  PATTERN "boost/*"
+)
+install(
+  DIRECTORY ${CMAKE_OUTPUT_DIRECTORY}/lib/
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  USE_SOURCE_PERMISSIONS
+  PATTERN "lib/*"
+)
+
+macro(add_dependency_to_optional_modules_dependencies)
+  add_dependencies(${libbrite} brite_dep)
+  add_dependencies(${libclick} click_dep)
+  add_dependencies(${libopenflow} openflow_dep)
+  if(NOT ${XCODE})
+    add_dependencies(${libbrite}-obj brite_dep)
+    add_dependencies(${libclick}-obj click_dep)
+    add_dependencies(${libopenflow}-obj openflow_dep)
+  endif()
+endmacro()

build-support/macros-and-definitions.cmake

@@ -141,6 +141,7 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_OUTPUT_DIRECTORY})
 set(CMAKE_HEADER_OUTPUT_DIRECTORY ${CMAKE_OUTPUT_DIRECTORY}/include/ns3)
 set(THIRD_PARTY_DIRECTORY ${PROJECT_SOURCE_DIR}/3rd-party)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+link_directories(${CMAKE_OUTPUT_DIRECTORY}/lib)
 
 # Get installation folder default values for each platform and include package
 # configuration macro
@@ -1471,6 +1472,12 @@ macro(process_options)
     )
     add_subdirectory(${netanim_SOURCE_DIR} ${netanim_BINARY_DIR})
   endif()
+
+  if(${NS3_FETCH_OPTIONAL_COMPONENTS})
+    include(
+      build-support/custom-modules/ns3-fetch-optional-modules-dependencies.cmake
+    )
+  endif()
 endmacro()
 
 function(set_runtime_outputdirectory target_name output_directory target_prefix)

src/CMakeLists.txt

@@ -87,3 +87,7 @@ if(${NS3_MONOLIB})
     add_dependencies(timeTraceReport ${lib-ns3-monolib})
   endif()
 endif()
+
+if(${NS3_FETCH_OPTIONAL_COMPONENTS})
+  add_dependency_to_optional_modules_dependencies()
+endif()

src/brite/CMakeLists.txt

@@ -18,8 +18,10 @@ find_external_library(
 
 if((NOT
     brite_FOUND)
-   OR (NOT
-       ${brite_FOUND})
+   AND (NOT
+        ${brite_FOUND})
+   AND (NOT
+        ${NS3_FETCH_OPTIONAL_COMPONENTS})
 )
   message(
     ${HIGHLIGHTED_STATUS}
@@ -28,6 +30,12 @@ if((NOT
   return()
 endif()
 
+if(${NS3_FETCH_OPTIONAL_COMPONENTS})
+  set(brite_LIBRARIES
+      brite
+  )
+endif()
+
 # Only process module if include folder and library have been found
 include_directories(${brite_INCLUDE_DIRS})
 set(NS3_BRITE

src/click/CMakeLists.txt

@@ -23,6 +23,8 @@ if((NOT
     click_FOUND)
    AND (NOT
         ${click_FOUND})
+   AND (NOT
+        ${NS3_FETCH_OPTIONAL_COMPONENTS})
 )
   message(
     ${HIGHLIGHTED_STATUS}
@@ -31,6 +33,13 @@ if((NOT
   return()
 endif()
 
+if(${NS3_FETCH_OPTIONAL_COMPONENTS})
+  set(click_LIBRARIES
+      click
+      nsclick
+  )
+endif()
+
 include_directories(${click_INCLUDE_DIRS})
 set(NS3_CLICK
     "ON"

src/openflow/CMakeLists.txt

@@ -20,6 +20,8 @@ if((NOT
     openflow_FOUND)
    AND (NOT
         ${openflow_FOUND})
+   AND (NOT
+        ${NS3_FETCH_OPTIONAL_COMPONENTS})
 )
   message(
     ${HIGHLIGHTED_STATUS}
@@ -28,6 +30,12 @@ if((NOT
   return()
 endif()
 
+if(${NS3_FETCH_OPTIONAL_COMPONENTS})
+  set(openflow_LIBRARIES
+      openflow
+  )
+endif()
+
 check_include_file_cxx(
   boost/static_assert.hpp
   BOOST_STATIC_ASSERT