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Mg v3.0
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@troglobit troglobit released this 15 May 18:53
· 558 commits to master since this release
v3.0
704f822

First release based on Mg2a from OpenBSD 5.9. The work on Mg3a, by Bengt Larsson, is not a part of this project. The version number was chosen based on: 2A < 30 < 3A HEX. The OpenBSD Mg is greatly improved
over the original Mg2a, from 1986, but does not have the same feature set as Mg3a.

Changes

  • Import mg from OpenBSD 5.9
  • Use libite (-lite) to provide missing OpenBSD/NetBSD API's
  • Add GNU configure and build system for portability to other systems:
    • Detect existence and correct version of libite (v1.6.0 or later)
    • Detect -ltermcap, -ltinfo, or -lcurses. We only use the termcap
      functionality in Mg, but can link with either of them
    • Detect term.h, we cannot use termcap.h because of cookies
    • Make OpenBSD developed features optional with configure,
      e.g. integrated ctags and cscope support
    • Add --enable-size-optimizations option
    • Add --with-startup=FILE for alternate init file
  • Conditionalize OpenBSD specific API's and modules, e.g. the pledge()
    API and the theo.c module ... #ifdef __OpenBSD__
  • Add missing M-x version for compatibility with GNU Emacs
  • Add -h command line option for a simple usage text
  • Change Mg built-in version to use configure script's PACKAGE_STRING
    rather than hardcoded, and rather outdated, Mg 2a
  • Add LICENSE file, from licensing info (Public Domain) in README
  • Add AUTHORS file, from author listing in README
  • Create README.md from text in README and mg.1 with information
    about this project and the motivation for it

Fixes

  • Convert from fgetln() to standard POSIX getline()
  • Convert old st_mtimespec to POSIX st_mtim
  • Add workaround for systems missing TCSASOFT flag to tcsetattr()
  • Import SO_NOSIGPIPE patch for OX X from by Han Boetes' Mg porting
    project http://homepage.boetes.org/software/mg/
  • Encapsulate private globalwddata in optional grep.c module
  • Fix build warnings for missing asprintf() family of C API's
  • Integration fixes:
    • fisdir() already exists in libite
    • makedir() is a libite function, rename to make_dir()
  • Fix unsafe enabling of non-blocking mode on file descriptor used
    when piping buffer contents (M-|) to an external program.
  • Collect forked off children in M-|, missing waitpid()
  • Fixes for bugs found by Coverity Scan:
    • Fix file descriptor leaks
    • Add missing NULL pointer checks
    • Missing checks for return value from both internal and C library
      functions. Some simply marked as "don't care"
    • Fix missing initialization of stack variables
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