cmake: try_run test required to catch subtly broken error stop compilers

Author: scivision

src/tests/CMakeLists.txt

@@ -26,6 +26,17 @@ else()
   set(DISABLE_ESTOP_TESTS true)
 endif()
 
+if(NOT DISABLE_ESTOP_TESTS AND NOT DEFINED es_run_out)
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/es_77.f90 "error stop 77; end")
+  try_run(es_run_out es_build_out
+    ${CMAKE_CURRENT_BINARY_DIR}/estop
+    ${CMAKE_CURRENT_BINARY_DIR}/es_77.f90
+  )
+  if(NOT es_run_out EQUAL 77)
+    set(DISABLE_ESTOP_TESTS true)
+  endif()
+endif()
+
 add_executable(test_error_handling test_error_driver.f90)
 
 add_executable(test_always_77 test_always_77.f90)