Before this change, the clang compiler produced the following warning:

```
In file included from src/libespeak-ng/espeak_api.c:35:
src/libespeak-ng/event.h:65:28: warning: declaration of 'struct timespec' will
      not be visible outside of this function [-Wvisibility]
void clock_gettime2(struct timespec *ts);
                           ^
src/libespeak-ng/event.h:66:28: warning: declaration of 'struct timespec' will
      not be visible outside of this function [-Wvisibility]
void add_time_in_ms(struct timespec *ts, int time_in_ms);
                           ^
2 warnings generated.
```

Fixes #401.

The stray space confuses GitHub’s markdown parser.

Based on a patch by Valdis Vitolins <[email protected]>.

Based on a patch by Valdis Vitolins <[email protected]>.

allative case has a suffix of -lle. Normally it causes the doubling of the next word. However, enclitics should be treated like words in this case, so double the enclitic instead of the next word.

Sources for grammar rule:
http://scripta.kotus.fi/visk/sisallys.php?p=127
http://scripta.kotus.fi/visk/sisallys.php?p=34

The "Place of Articulation" documentation was moved to the
phonemes.md documentation, but the table of content entry was
not removed.

This is a Variant I created called male8, probably one of the smoothest sounding espeak male variants ever. It sounds very good with inflection at 100, which I don't know if you can only change in NVDA or other programs too.

synthesize.h now contains the definitions STRESS_IS_... that should be used with code related to syllable stress.

Note that isBreak and other defines were renumbered so that stress definitions could have values 0-6.

Possible TODOs:
1. Unify with terms used with phonemes, i.e. keywords like isDiminished in compiledata.c and stress_type in phsource/phonemes
2. Add functionality and documentation about STRESS_IS_PRIORITY and STRESS_IS_EMPHASIZED

Stress flag S_2_TO_HEAVY is currently only used by finnish.

Current behaviour skips adding secondary stress if the following syllable is heavy. The behaviour should be to skip adding secondary stress if the rest of the word (excluding last syllable) contains a heavy syllable.

Source of grammar rule and examples of expected behaviour: http://scripta.kotus.fi/visk/sisallys.php?p=13

Source: http://scripta.kotus.fi/visk/sisallys.php?p=13