Dependent compilation of tests, examples ... etc (#100)

* add a project name

* opt out of test, example, perf and doc build

* compiler definitions for clang

* fix build order by setting target depencies

* fix streampos namespace

* bump benchmark version

* remove file since it is part of google benchmark

* deactivate tests for google benchmark

* add missing ;

* add constexpr and variadic templates to compile features

* FIX set compile on interface since yap is an interface lib

* set cxx 14 as compile feature to compile boost

* add missing $

* replace cxx_std_14 by concrete features

* add all features to interface_compile_properties

* fix interface_compile_properties

CMakeLists.txt

@@ -1,4 +1,6 @@
 cmake_minimum_required(VERSION 3.5)
+project(YAP LANGUAGES CXX)
+
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 ################################################## 
@@ -48,6 +50,7 @@ elseif (NOT std_flag)
     message(FATAL_ERROR "Only c++14 or later will work")
 endif ()
 
+
 ##################################################
 # Sanitizers
 ##################################################
@@ -97,24 +100,39 @@ elseif (CMAKE_CXX_COMPILER_ID STREQUAL GNU)
     add_definitions(${std_flag} -g -Wall)
 endif ()
 
-##################################################
-# Dependencies
-##################################################
-include(dependencies)
-
 ##################################################
 # yap library
 ##################################################
 add_library(yap INTERFACE)
 target_include_directories(yap INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)
 target_link_libraries(yap INTERFACE boost)
+target_compile_features(yap INTERFACE cxx_variadic_templates cxx_constexpr)
 target_compile_definitions(yap INTERFACE ${constexpr_if_define} BOOST_ALL_NO_LIB=1)
 if (link_flags)
     target_link_libraries(yap INTERFACE ${link_flags})
     target_compile_options(yap INTERFACE ${compile_flags})
 endif ()
 
-add_subdirectory(test)
-add_subdirectory(example)
-add_subdirectory(perf)
-add_subdirectory(doc) # Doesn't build docs, just the snippets files.
+macro(cond_build subdir)
+    set(SUBDIRU "")
+    string(TOUPPER ${subdir} SUBDIRU)
+    option(YAP_BUILD_${SUBDIRU} "Build ${subdir}" ON)
+    if(YAP_BUILD_${SUBDIRU})
+        add_subdirectory(${subdir})
+    endif()
+endmacro()
+
+cond_build(test)
+
+cond_build(example)
+
+if (YAP_BUILD_EXAMPLE)
+    cond_build(perf)
+endif()
+
+cond_build(doc) # Doesn't build docs, just the snippets files.
+
+##################################################
+# Dependencies
+##################################################
+include(dependencies)

cmake/dependencies.cmake

@@ -29,26 +29,34 @@ else ()
   unset(SOURCE_DIR)
 endif ()
 
+set_target_properties(boost
+    PROPERTIES
+        INTERFACE_COMPILE_FEATURES cxx_decltype_auto
+        )
 
 ###############################################################################
 # Google Benchmark
 ###############################################################################
-execute_process(
-    COMMAND git clone https://github.com/google/benchmark.git
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-)
-execute_process(
-    COMMAND git checkout v1.2.0
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/benchmark
-)
 
-option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." OFF)
-add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/benchmark)
+if(YAP_BUILD_PERF)
+  execute_process(
+      COMMAND git clone https://github.com/google/benchmark.git
+      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+  )
+  execute_process(
+      COMMAND git checkout v1.5.0
+      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/benchmark
+  )
+  set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
+  add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/benchmark)
+endif()
 
 
 ###############################################################################
 # Autodiff (see https://github.com/fqiang/autodiff_library)
 ###############################################################################
+
+if(YAP_BUILD_EXAMPLE)
 add_library(autodiff_library
   ${CMAKE_CURRENT_SOURCE_DIR}/example/autodiff_library/ActNode.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/example/autodiff_library/BinaryOPNode.cpp
@@ -66,3 +74,4 @@ add_library(autodiff_library
 target_include_directories(autodiff_library PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/example/autodiff_library)
 target_compile_definitions(autodiff_library PUBLIC BOOST_ALL_NO_LIB=1)
 target_link_libraries(autodiff_library boost)
+endif()

example/CMakeLists.txt

@@ -37,6 +37,7 @@ if (constexpr_if_define STREQUAL "-DBOOST_NO_CONSTEXPR_IF=0")
 endif ()
 
 add_executable(autodiff autodiff_example.cpp)
+add_dependencies(autodiff autodiff_library)
 target_link_libraries(autodiff yap boost autodiff_library)
 if (clang_on_linux)
     target_link_libraries(autodiff c++)

perf/CMakeLists.txt

@@ -16,6 +16,7 @@ add_code_gen_executable(lazy_vector_perf)
 
 macro(add_perf_executable name)
     add_executable(${name} ${name}.cpp)
+    add_dependencies(${name} benchmark)
     target_link_libraries(${name} yap benchmark)
     if (clang_on_linux)
         target_link_libraries(${name} c++)

perf/arithmetic_perf.cpp

@@ -138,4 +138,4 @@ BENCHMARK(BM_eval_as_yap_expr_4x);
 BENCHMARK(BM_eval_as_cpp_expr);
 BENCHMARK(BM_eval_as_cpp_expr_4x);
 
-BENCHMARK_MAIN()
+BENCHMARK_MAIN();

perf/map_assign_perf.cpp

@@ -159,4 +159,4 @@ BENCHMARK(BM_make_map_with_boost_assign);
 BENCHMARK(BM_make_map_manually);
 BENCHMARK(BM_make_map_inializer_list);
 
-BENCHMARK_MAIN()
+BENCHMARK_MAIN();

test/CMakeLists.txt

@@ -16,6 +16,12 @@ set(coverage_gcda_files)
 macro(add_test_executable name)
     add_executable(${name} ${name}.cpp)
     target_link_libraries(${name} yap)
+    target_compile_features(${name}
+        PRIVATE
+            cxx_constexpr
+            cxx_decltype_auto
+            cxx_auto_type
+            )
     target_compile_definitions(${name} PRIVATE BOOST_NO_AUTO_PTR)
     add_test(${name} ${CMAKE_CURRENT_BINARY_DIR}/${name})
     if (clang_on_linux)