Log Message:
Update to version 0.28.0

  LIBDEPS, STATICLIBS, DPLDADD, DPLIBDIRS and DPINCDIRS variables were
  introduced. With their help one can specify library dependencies in
  the top-level Makefile. Users are also able to build some libraries
  statically even if they were designed to be a dynamic libraries.

  New variable FOREIGN was introduced. With its help one can embed
  autotools-based projects (as a subproject) to mk-configure-based once.
  See mkc_imp.foreign_autotools.mk section in man page for details.

  Support for Darwin was fixed. Nowadays it uses clang.

  New features were introduced:
    - "progname" for setprogname(3) and getprogname(3) BSDisms;
    - "err" for err(3), errx(3), verr(3) and verrx(3) BSDisms;
    - "warn" for warn(3), warnx(3), vwarn(3) and vwarnx(3) BSD-isms;
    - "fgetln" for fgetln(3) BSD-ism;

  Support for Haiku was fixed. It does not support hard links
  and uses LIBRARY_PATH.

  LDCOMPILER variable was removed.
  Compiler is always used for linking.

  New builtin "prog_gmake" was introduced which search GNU make.

  INTERNALLIBS variable was introduced. With its help one can
  implement libraries common for several subprojects.

  COMPATLIB variable was introduced. It is ideal solution for
  portability code.

  MKC_FEATURES: all objects are removed by target "clean"

  Target "errorcheck" was added to ALLTARGETS. Therefore it also have
  pre_, do_, post_ counterparts.

  VARDIR, SHAREDSTATEDIR, SUBPRJSRCTOP, CPPFLAGS0 variables were introduced.

  MKC_SOURCE_FUNCSLIBS: .o{s,p} objects are also removed by target "clean"

  Hardcoded /etc/mk.conf is not included anymore. New mk-configure
  specific configuration file @sysconfdir@/mk-c.conf was introduced.

  Additions to doc/NOTES

  .depends is added to DISTCLEANDIRS only for non-empty SRCS

  mkc_imp.intexts.mk: new error type for odd tokens in INTEXTS_REPLS

  MKDEP_CC is shquoted when passed to mkdep(1) as CC.

  Code clean-ups, more regression tests.

  This release was sucessfully tested on the following platforms.
  NetBSD-6.1/x86_64/gcc-4.5, FreeBSD-9.0/i386/gcc-4.2,
  OpenBSD-4.9/i386/gcc-4.2, DragonFlyBSD-3.4/x86_64/gcc-4.7,
  Darwin-14.0/x86_64/clang-600.0.53, SunOS-5.11/i86pc/gcc-4.7,
  SunOS-5.10/sparc/{gcc-4.8,SunStudio-12.3}, diverse
  Linux-es/{gcc,icc-12.1,SunStudio-12.3}, Haiku/gcc-4.8.