Add cmake_install_test, cmake_subdir_test

test/cmake_install_test/CMakeLists.txt

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+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_install_test LANGUAGES CXX)
+
+find_package(boost_signals2 REQUIRED)
+
+add_executable(main main.cpp)
+target_link_libraries(main Boost::signals2)
+
+enable_testing()
+add_test(main main)
+
+add_custom_target(check VERBATIM COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/cmake_install_test/main.cpp

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+// Copyright 2024 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/signals2.hpp>
+
+int f()
+{
+    return 4;
+}
+
+int main()
+{
+    boost::signals2::signal<int()> sig;
+
+    sig.connect( f );
+
+    return sig() == 4? 0: 1;
+}

test/cmake_subdir_test/CMakeLists.txt

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+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.20)
+
+project(cmake_subdir_test LANGUAGES CXX)
+
+add_subdirectory(../.. boostorg/signals2)
+
+# boostdep --brief signals2
+
+set(deps
+
+# Primary dependencies
+
+assert
+bind
+config
+core
+function
+iterator
+move
+mpl
+optional
+parameter
+preprocessor
+smart_ptr
+throw_exception
+tuple
+type_traits
+variant
+
+# Secondary dependencies
+
+static_assert
+concept_check
+detail
+function_types
+fusion
+utility
+predef
+mp11
+container_hash
+integer
+type_index
+describe
+functional
+typeof
+io
+)
+
+foreach(dep IN LISTS deps)
+
+  add_subdirectory(../../../${dep} boostorg/${dep})
+
+endforeach()
+
+# --target check
+
+add_executable(main main.cpp)
+target_link_libraries(main Boost::signals2)
+
+enable_testing()
+add_test(main main)
+
+add_custom_target(check VERBATIM COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/cmake_subdir_test/main.cpp

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+// Copyright 2024 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/signals2.hpp>
+
+int f()
+{
+    return 4;
+}
+
+int main()
+{
+    boost::signals2::signal<int()> sig;
+
+    sig.connect( f );
+
+    return sig() == 4? 0: 1;
+}