From 9a009e5cf19b2cf56bec64bc530884bc30b7e556 Mon Sep 17 00:00:00 2001
From: ThePhD <phdofthehouse@gmail.com>
Date: Sat, 23 Dec 2017 21:29:29 -0500
Subject: [PATCH] gate features behind check

---
 CMakeLists.txt          | 9 ++++++---
 examples/CMakeLists.txt | 2 +-
 tests/CMakeLists.txt    | 2 +-
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f127d850..74f4f313 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -138,21 +138,24 @@ if (PYTHONINTERP_FOUND)
 			DESTINATION include/sol)
 	endif()
 	if (DOCS)
+		set(SOL2_DOCS_FOUND TRUE)
 		add_custom_command(OUTPUT documentation COMMAND "make html" WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/docs)
 		add_custom_target(docs DEPENDS documentation)
 		install(DIRECTORY "${CMAKE_SOURCE_DIR}/docs/build/html" DESTINATION bin/docs)
 	endif()
 else()
 	if (SINGLE)
+		set(SOL2_SINGLE_FOUND FALSE)
 		message(STATUS "single_header cannot be generated as python 3 has not been found.")
 	endif()
 	if (DOCS)
+		set(SOL2_DOCS_FOUND FALSE)
 		message(STATUS "documentation cannot be generated as python 3 has not been found.")
 	endif()
 endif()
 
 # # # Tests, Examples and other CI suites that come with sol2
-#if (TESTS OR TESTS_SINGLE OR EXAMPLES)
+if (TESTS OR TESTS_SINGLE OR EXAMPLES OR TESTS_EXAMPLES)
 	# # # Libraries
 	# Here, we pull in all the necessary libraries for building examples and tests
 	# Find threading library
@@ -187,8 +190,8 @@ endif()
 
 	# # # Examples
 	# # Enable examples to be built against the library
-	if (EXAMPLES)
+	if (EXAMPLES OR TESTS_EXAMPLES)
 		# NOTE: will also add to tests if TESTS is defined
 		add_subdirectory(examples "${CMAKE_BINARY_DIR}/examples")
 	endif()
-#endif()
+endif()
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 5d25bcf5..0628e3ac 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -81,7 +81,7 @@ endfunction(MAKE_EXAMPLE)
 
 foreach(example_source_file ${EXAMPLES_SRC})
 	MAKE_EXAMPLE(${example_source_file} FALSE)
-	if (TESTS_SINGLE)
+	if (TESTS_SINGLE AND SOL2_SINGLE_FOUND)
 		MAKE_EXAMPLE(${example_source_file} TRUE)
 	endif()
 endforeach()
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 29384eae..8959ca59 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -70,6 +70,6 @@ function(CREATE_TEST test_target_name test_name is_single)
 endfunction(CREATE_TEST)
 
 CREATE_TEST(tests "tests" FALSE)
-if (TESTS_SINGLE)
+if (TESTS_SINGLE AND SOL2_SINGLE_FOUND)
 	CREATE_TEST(tests_single "tests.single" TRUE)
 endif()