strlcat provides better protection against buffer overflows.
Code is taken from the FreeBSD project source code. Specifically:
https://github.com/freebsd/freebsd/blob/master/lib/libc/string/strlcat.c
License appears to be acceptable, but needs to be checked by e.g. Debian.
Step 1:
1. Add to netcdf-c/include/ncconfigure.h to use our version
if not already available as determined by HAVE_STRLCAT in config.h.
2. Add the strlcat code to libdispatch/dstring.c
3. Turns out that strlcat was already defined in several places.
So remove it from:
ncgen3/genlib.c
ncdump/dumplib.c
3. Define strlcat extern definition in ncconfigure.h.
4. Modify following directories to use strlcat:
libdap2 libdap4 ncdap_test dap4_test
Will do others in subsequent steps.
to get TOPSRCDIR that avoids use of
TEST_ENVIRONMENT and makes automake and cmake
more consistent.
Basic assumption is that abs_top_srcdir (and
cmake equivalent) is known at 'make check' time,
so we can use -D flag to compile a program that
has the value of abs_top_srcdir embedded into it
as a constant.
We define two new files in ncdap_test:
1. t_srcdir.h -- provide a gettopsrcdir() function
to return the topsrcdir value to the test program.
2. topsrcdir.c -- a program that calls gettopsrcdir()
and prints its output (minus any newline) on stdout.
This is used in .sh files to get topsrcdir.
It appears the problem is that synth9 was erroneously
included in testing. It involves a nested sequence which
is not translatable. Not sure why it was still there,
but fix is to suppress the test.
