Require BOOST_GIL_USE_CONCEPT_CHECK when compiling test/*/concepts.cpp

Add BOOST_GIL_USE_CONCEPT_CHECK define to CMakeLists.txt files.
Rename channel_concepts.cpp to concepts.cpp.

test/channel/CMakeLists.txt

@@ -24,6 +24,7 @@ foreach(_name
       gil_compile_options
       gil_include_directories
       gil_dependencies)
+  target_compile_definitions(${_target} PRIVATE BOOST_GIL_USE_CONCEPT_CHECK)
   add_test(test.core.${_name} ${_target})
 
   unset(_name)

test/image/CMakeLists.txt

@@ -16,6 +16,7 @@ foreach(_name
       gil_compile_options
       gil_include_directories
       gil_dependencies)
+  target_compile_definitions(${_target} PRIVATE BOOST_GIL_USE_CONCEPT_CHECK)
   add_test(test.core.${_name} ${_target})
 
   unset(_name)

test/image/concepts.cpp

@@ -5,6 +5,9 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 //
+#ifndef BOOST_GIL_USE_CONCEPT_CHECK
+#error Compile with BOOST_GIL_USE_CONCEPT_CHECK defined
+#endif
 #include <boost/gil.hpp>
 
 #include <boost/concept_check.hpp>

test/image_view/CMakeLists.txt

@@ -24,6 +24,7 @@ foreach(_name
       gil_compile_options
       gil_include_directories
       gil_dependencies)
+  target_compile_definitions(${_target} PRIVATE BOOST_GIL_USE_CONCEPT_CHECK)
   add_test(test.core.${_name} ${_target})
 
   unset(_name)

test/image_view/concepts.cpp

@@ -5,6 +5,9 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 //
+#ifndef BOOST_GIL_USE_CONCEPT_CHECK
+#error Compile with BOOST_GIL_USE_CONCEPT_CHECK defined
+#endif
 // FIXME: There are missing headers internally, leading to incomplete types
 #if 0
 #include <boost/gil/image_view.hpp>

test/pixel/CMakeLists.txt

@@ -16,6 +16,7 @@ foreach(_name
       gil_compile_options
       gil_include_directories
       gil_dependencies)
+  target_compile_definitions(${_target} PRIVATE BOOST_GIL_USE_CONCEPT_CHECK)
   add_test(test.core.${_name} ${_target})
 
   unset(_name)

test/pixel/concepts.cpp

@@ -5,6 +5,9 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 //
+#ifndef BOOST_GIL_USE_CONCEPT_CHECK
+#error Compile with BOOST_GIL_USE_CONCEPT_CHECK defined
+#endif
 #include <boost/gil.hpp>
 
 #include <boost/concept_check.hpp>

test/point/CMakeLists.txt

@@ -17,6 +17,7 @@ foreach(_name
       gil_compile_options
       gil_include_directories
       gil_dependencies)
+  target_compile_definitions(${_target} PRIVATE BOOST_GIL_USE_CONCEPT_CHECK)
   add_test(test.core.${_name} ${_target})
 
   unset(_name)

test/point/concepts.cpp

@@ -5,6 +5,9 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 //
+#ifndef BOOST_GIL_USE_CONCEPT_CHECK
+#error Compile with BOOST_GIL_USE_CONCEPT_CHECK defined
+#endif
 #include <boost/gil/concepts.hpp>
 #include <boost/gil/point.hpp>