Add examples subdirectory to CMake build; included if BUILD_EXAMPLES is true

examples/CMakeLists.txt

@@ -0,0 +1,100 @@
+#
+# Build examples.
+#
+# Requires BUILD_EXAMPLES to be defined 'true', see ../CMakeLists.txt.
+#
+
+cmake_minimum_required( VERSION 3.0 )
+
+project( CatchExamples CXX )
+
+# define folders used:
+
+set( EXAMPLES_DIR ${CATCH_DIR}/examples )
+set( HEADER_DIR   ${CATCH_DIR}/single_include )
+
+# single-file sources:
+
+set( SOURCES_SINGLE_FILE
+    010-TestCase.cpp
+)
+
+# multiple-file modules:
+
+set( SOURCES_020
+    020-TestCase-1.cpp
+    020-TestCase-2.cpp
+)
+
+# main for idiomatic test sources:
+
+set( SOURCES_IDIOMATIC_MAIN
+    000-CatchMain.cpp
+)
+
+# sources to combine with 000-CatchMain.cpp:
+
+set( SOURCES_IDIOMATIC_TESTS
+    030-Asn-Require-Check.cpp
+    100-Fix-Section.cpp
+    110-Fix-ClassFixture.cpp
+    120-Bdd-ScenarioGivenWhenThen.cpp
+    210-Evt-EventListeners.cpp
+)
+
+# check if all sources are listed, warn if not:
+
+set( SOURCES_ALL
+    ${SOURCES_020}
+    ${SOURCES_SINGLE_FILE}
+    ${SOURCES_IDIOMATIC_MAIN}
+    ${SOURCES_IDIOMATIC_TESTS}
+)
+
+foreach( name ${SOURCES_ALL} )
+    list( APPEND SOURCES_ALL_PATH ${EXAMPLES_DIR}/${name} )
+endforeach()
+
+CheckFileList( SOURCES_ALL_PATH ${EXAMPLES_DIR} )
+
+# create target names:
+
+string( REPLACE ".cpp" "" BASENAMES_SINGLE_FILE     "${SOURCES_SINGLE_FILE}" )
+string( REPLACE ".cpp" "" BASENAMES_IDIOMATIC_TESTS "${SOURCES_IDIOMATIC_TESTS}" )
+
+set( TARGETS_SINGLE_FILE     ${BASENAMES_SINGLE_FILE} )
+set( TARGETS_IDIOMATIC_TESTS ${BASENAMES_IDIOMATIC_TESTS} )
+set( TARGETS_ALL             ${TARGETS_SINGLE_FILE} ${TARGETS_IDIOMATIC_TESTS} 020-TestCase CatchMain )
+
+# define program targets:
+
+add_library( CatchMain OBJECT ${EXAMPLES_DIR}/${SOURCES_IDIOMATIC_MAIN} ${HEADER_DIR}/catch.hpp )
+
+add_executable( 020-TestCase ${EXAMPLES_DIR}/020-TestCase-1.cpp ${EXAMPLES_DIR}/020-TestCase-2.cpp ${HEADER_DIR}/catch.hpp )
+
+foreach( name ${TARGETS_SINGLE_FILE} )
+    add_executable( ${name} ${EXAMPLES_DIR}/${name}.cpp ${HEADER_DIR}/catch.hpp )
+endforeach()
+
+foreach( name ${TARGETS_IDIOMATIC_TESTS} )
+    add_executable( ${name} ${EXAMPLES_DIR}/${name}.cpp $<TARGET_OBJECTS:CatchMain> ${HEADER_DIR}/catch.hpp )
+endforeach()
+
+foreach( name ${TARGETS_ALL} )
+    target_include_directories( ${name} PRIVATE ${HEADER_DIR} )
+
+    set_property(TARGET ${name} PROPERTY CXX_STANDARD 11)
+
+    # Add desired warnings
+    if ( CMAKE_CXX_COMPILER_ID MATCHES "Clang|AppleClang|GNU" )
+        target_compile_options( ${name}  PRIVATE -Wall -Wextra -Wunreachable-code )
+    endif()
+    # Clang specific warning go here
+    if ( CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
+        # Actually keep these
+        target_compile_options( ${name}  PRIVATE -Wweak-vtables -Wexit-time-destructors -Wglobal-constructors -Wmissing-noreturn )
+    endif()
+    if ( CMAKE_CXX_COMPILER_ID MATCHES "MSVC" )
+        target_compile_options( ${name}  PRIVATE /W4 /w44265 /WX )
+    endif()
+endforeach()