Revision history for RPi-Const

1.07    2026-07-12
    - Added t/50-const_coverage.t, a self-policing coverage guard: it asserts
      every export tag and every constant value against a manifest, and fails
      if a new tag or constant is added without a test (closes the previously
      untested :altmode and :mcp23017_pins tags)
    - Added dedicated per-tag tests t/28-const_altmode.t and
      t/48-const_mcp23017_pins.t, matching the existing per-tag test convention
    - Added :wiringpi tag with WIRINGPI_MIN_VERSION ('3.18') - the canonical
      minimum wiringPi version for the entire RPi:: distribution family; the
      consuming files across the dists are cataloged in REQ.md
    - Added RPi::Const::BuildCheck: the canonical wiringPi/I2C Makefile.PL
      build guards for the whole RPi:: family (wiringpi_build_check /
      i2c_build_check), so each XS dist's Makefile.PL shrinks to a shim pulled
      in via CONFIGURE_REQUIRES. Reads the minimum from WIRINGPI_MIN_VERSION
      (single source), preserves the RPI_DIST_RELEASE bypass and exit-0
      NA-not-FAIL semantics, and fixes two latent bugs in the hand-copied
      guards: version_ge() compares (major, minor) as integers so 3.8 correctly
      fails a 3.18 minimum, and an unparseable 'gpio -v' now exits NA instead
      of silently passing. All I/O is injectable; t/55-buildcheck.t covers it
      off-Pi (incl. a fork test of the exit-0 semantics)
    - Broadened header discovery in RPi::Const::BuildCheck: when include_dirs
      is not supplied, the wiringPi/i2c checks now search /usr/include and
      /usr/local/include and, on a miss, the C compiler's own <...> search
      path (parsed from its verbose preprocessor output), so a header in a
      multiarch dir or a non-default prefix is still found. Best-effort and
      injectable via new cc / cc_output opts; t/55-buildcheck.t covers the
      parser and the fallback off-Pi

1.06    2026-06-18
    - Added :mcp23017_pins tag with named pin numbers A0-A7 (bank A pins
      0-7) and B0-B7 (bank B pins 8-15)

1.05    2026-06-11
        - Added :wpi_pin tag (WPI_PIN_BCM, WPI_PIN_WPI) for wiringPi's
          WPIPinType setup variants
        - Added :int_edge tag (INT_EDGE_SETUP/FALLING/RISING/BOTH), wiringPi's
          native edge names, aliasing the :edge (EDGE_*) values

1.04    2018-06-05
        - added constants for MCP23017 GPIO expander register locations
          (mcp23017_registers tag) for upcoming RPi::GPIOExpander::MCP23017
          release

1.03    2018-05-29
        - added pwm_defaults tag, constants for default PWM settings
          (closes #2)

1.02    2017-07-13
        - re-released RPi::WiringPi::Constant as RPi::Const

1.01    2017-07-08
        - added new tag :pwm_mode that contains the values for setting the PWM
          mode to either MS (mark-space) or BAL (balanced) mode

1.00    2017-06-24
        - added new tag :altmode that contains the value for the Pi pin ALT
          modes

0.02    unknown
        - added edge detection constants
        - added PUD constants
        - added setup mode constants

0.01    unknown
        - first version, released on an unsuspecting world.