Log message:
Fix _POSIX_C_SOURCE abuse for at least NetBSD to fix gcc6/7/8 build

Also add USE_GCC_RUNTIME

Bump PKGREVISION

Log message:
harfbuzz: update to 1.8.8.

Overview of changes leading to 1.8.8
Tuesday, August 14, 2018
====================================
- Fix hb-icu crash on architectures where compare_exchange_weak() can
  fail falsely.  This bug was introduced in 1.8.4.
  https://bugs.chromium.org/p/chromium/issues/detail?id=873568
- More internal refactoring of atomic operations and singletons.
- API changes:
  The following functions do NOT reference their return value before
  returning:
  * hb_unicode_funcs_get_default()
  * hb_glib_get_unicode_funcs()
  * hb_icu_get_unicode_funcs()
  This is consistent with their naming ("get", instead of \ 
"reference")
  as well as how they are used in the wild (ie. no one calls destroy()
  on their return value.)

Log message:
harfbuzz: update to 1.8.7.

Overview of changes leading to 1.8.7
Wednesday, August 8, 2018
====================================
- Fix assertion failure with GDEF-blacklisted fonts.

Overview of changes leading to 1.8.6
Tuesday, August 7, 2018
====================================
- Internal code shuffling.
- New API to speed up getting advance widths for implementations
  that have heavy overhead in get_h_advance callback:
+hb_font_funcs_set_glyph_h_advances_func
+hb_font_funcs_set_glyph_v_advances_func
+hb_font_get_glyph_advances_for_direction
+hb_font_get_glyph_h_advances
+hb_font_get_glyph_h_advances_func_t
+hb_font_get_glyph_v_advances
+hb_font_get_glyph_v_advances_func_t

Overview of changes leading to 1.8.5
Wednesday, August 1, 2018
====================================
- Major Khmer shaper improvements to better match Microsoft.
- Indic bug fixes.
- Internal improvements to atomic operations.

Overview of changes leading to 1.8.4
Tuesday, July 17, 2018
====================================
- Fix build on non-C++11.
- Use C++-style GCC atomics and C++11 atomics.

Overview of changes leading to 1.8.3
Wednesday, July 11, 2018
====================================
- A couple of Indic / USE bug fixes.
- Disable vectorization, as it was causing unaligned access bus error on
  certain 32bit architectures.

Overview of changes leading to 1.8.2
Tuesday, July 3, 2018
====================================
- Fix infinite loop in Khmer shaper.
- Improve hb_blob_create_from_file() for streams.

Log message:
Recursive revbump from textproc/icu-62.1

Log message:
harfbuzz: update to 1.8.1.

Overview of changes leading to 1.8.1
Tuesday, June 12, 2018
====================================
- Fix hb-version.h file generation; last two releases went out with wrong ones.
- Add correctness bug in hb_set_t operations, introduced in 1.7.7.
- Remove HB_SUBSET_BUILTIN build option.  Not necessary.

Log message:
harfbuzz: update to 1.8.0.

Tuesday, June 5, 2018
====================================
- Update to Unicode 11.0.0.

Overview of changes leading to 1.7.7
Tuesday, June 5, 2018
====================================
- Lots of internal changes, but not yet exposed externally.
- All HarfBuzz objects are significantly smaller in size now.
- Sinhala: Position repha on top of post-consonant, not base.
  This better matches Windows 10 behavior, which was changed
  from previous Windows versions.
- New build options:
  o New cpp macro HB_NO_ATEXIT
  o New cpp macro HB_SUBSET_BUILTIN
- Significant libharfbuzz-subset changes. API subject to change.
- New API in libharfbuzz:

+hb_blob_create_from_file()
+hb_face_count()

A hashmap implementation:
+hb-map.h
+HB_MAP_VALUE_INVALID
+hb_map_t
+hb_map_create()
+hb_map_get_empty()
+hb_map_reference()
+hb_map_destroy()
+hb_map_set_user_data()
+hb_map_get_user_data()
+hb_map_allocation_successful()
+hb_map_clear()
+hb_map_is_empty()
+hb_map_get_population()
+hb_map_set()
+hb_map_get()
+hb_map_del()
+hb_map_has()

Log message:
revbump after icu update

Log message:
harfbuzz: update to 1.7.6.

Overview of changes leading to 1.7.6
Wednesday, March 7, 2018
====================================

- Fix to hb_set_t binary operations. Ouch.
- New experimental harfbuzz-subset library. All of hb-subset.h
  is experimental right now and API WILL change.

- New API:
hb_blob_copy_writable_or_fail()
HB_OT_TAG_BASE
hb_set_previous()
hb_set_previous_range()

Log message:
harfbuzz: update to 1.7.5.

Overview of changes leading to 1.7.5
Tuesday, January 30, 2018
====================================

- Separate Khmer shaper from Indic.
- First stab at AAT morx. Not hooked up.
- Misc bug fixes.

Log message:
harfbuzz: update to 1.7.4.

harfbuzz: update to 1.7.4.

Overview of changes leading to 1.7.4
Wednesday, December 20, 2017
====================================

- Fix collect_glyphs() regression caused by hb_set_t changes.

Overview of changes leading to 1.7.3
Monday, December 18, 2017
====================================

- hb_set_t performance tuning and optimizations.
- Speed up collect_glyphs() and reject garbage data.
- In hb_coretext_font_create() set font point-size (ptem).
- Misc fixes.

Overview of changes leading to 1.7.2
Monday, December 4, 2017
====================================

- Optimize hb_set_add_range().
- Misc fixes.
- New API:
hb_coretext_font_create()