cmake: run examples as tests

.gitlab-ci.yml

@@ -358,7 +358,6 @@ Generate HTML pages:
       -DCMAKE_Fortran_COMPILER=gfortran
       -DBUILD_TESTING:BOOL=OFF
       -DMTIME_ENABLE_PYTHON:BOOL=OFF
-      -DMTIME_BUILD_EXAMPLES:BOOL=OFF
       -DMTIME_BUILD_DOCS:BOOL=ON
       -DDOXYGEN_GENERATE_LATEX:BOOL=OFF
       -DDOXYGEN_GENERATE_MAN:BOOL=OFF

CMakeLists.txt

@@ -15,7 +15,6 @@ option(BUILD_SHARED_LIBS "Build shared libraries" ON)
 option(BUILD_TESTING "Build tests" ON)
 
 option(MTIME_ENABLE_PYTHON "Enable the Python interface" OFF)
-option(MTIME_BUILD_EXAMPLES "Build examples" ON)
 option(MTIME_BUILD_DOCS "Build documentation" OFF)
 
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
@@ -47,12 +46,9 @@ if(MTIME_BUILD_DOCS)
   add_subdirectory(doc)
 endif()
 
-if(MTIME_BUILD_EXAMPLES)
-  add_subdirectory(examples)
-endif()
-
 include(CTest)
 if(BUILD_TESTING)
+  add_subdirectory(examples)
   add_subdirectory(test)
 else()
   # Allow for 'make test' even if the tests are disabled:

examples/CMakeLists.txt

@@ -23,6 +23,7 @@ set(examples_Fortran
 
 foreach(example IN LISTS examples_Fortran)
   add_executable(${example} ${example}.f90)
+  add_test(NAME ${example} COMMAND ${example})
 endforeach()
 
 set(examples_C
@@ -34,6 +35,7 @@ set(examples_C
 
 foreach(example IN LISTS examples_C)
   add_executable(${example} ${example}.c)
+  add_test(NAME ${example} COMMAND ${example})
 endforeach()
 
 # Additional sources of the example executables: