Log message:
- homepage has moved
- distfile has moved
- license has changed.  Patches are the result of de-fuzzing the
  old patches since the new source files have the new (less restrictive)
  license.

Log message:
Replace RPATH_FLAG with LINKER_RPATH_FLAG and COMPILER_RPATH_FLAG,
which are the full option names used to set rpath directives for the
linker and the compiler, respectively.  In places were we are invoking
the linker, use "${LINKER_RPATH_FLAG} <path>", where the space is
inserted in case the flag is a word, e.g. -rpath.  The default values
of *_RPATH_FLAG are set by the compiler/*.mk files, depending on the
compiler that you use.  They may be overridden on a ${OPSYS}-specific
basis by setting _OPSYS_LINKER_RPATH_FLAG and _OPSYS_COMPILER_RPATH_FLAG,
respectively.  Garbage-collect _OPSYS_RPATH_NAME and _COMPILER_LD_FLAG.

Log message:
s/malloc.h/stdlib.h/ (for darwin/freebsd)

Log message:
Convert to buildlink3.

Log message:
obey CFLAGS.  Among other benefits this should help with non-gcc compilers

Log message:
add x86_64 to the list of 64 bit platforms

Log message:
In the new compiler selection framework, GCC_REQD is appended to, not
overridden.

Log message:
Use GCC_REQD instead of USE_PKGSRC_GCC when overriding the compiler
for arm, so that we don't need to install the gcc package(s) on
machines that already have a working compiler in their /usr/bin.

Log message:
Move WRKSRC definition away from the first paragraph in a Makefile.

Log message:
get rid of USE_GCC2/3 in pkg Makefiles, and set GCC_REQD or
USE_PKGSRC_GCC as appropriate, as this is handled by compiler.mk now.