| ! CMake Fortran parser does not understand the `#if !defined(...)` | |
| ! syntax, so it does not guard against recursive inclusion. Unless | |
| ! the parser keeps track of already visited files, this leads to | |
| ! processing of around 2^N files, where N is the maximal number of | |
| ! open files. Because N is typically of the order of 1000, without | |
| ! bookkeeping this test hangs. | |
| #if !defined(test_include_loop_fh) | |
| #define test_include_loop_fh | |
| #include "test_include_loop.fh" | |
| #include "test_include_loop.fh" | |
| #endif |