Estimated hours taken: 2
tests/hard_coded/export.m:
Fix a bug: the `pragma c_code' declaration did not specify
`may_call_mercury' even though the C code actually did call Mercury.
This caused it to break when compiled with `-O1' in grade `jump'.
Estimated hours taken: 2
Change the place in which the "#include" for a module's ".h" file is placed
when a procedure has been exported. Previously, the #include appeared just
before the definitions of the C functions for the exports. This change puts
the include at the top of the generated C file.
This has the consequence that the exported function can be used from
pragma c_code declarations without explicitly including the .h file.
tests/hard_coded/export_test.*:
A test for this bug fix.
