firefox-db2pem.sh conversion script that converts a local Firefox db of ca
  certs into PEM format, suitable for use with a OpenSSL or GnuTLS built
  libcurl.

including our local m4/reentrant.m4 file. This even takes care of including the
file in the distribution tarball.

in top Makefile.am triggered a problem that prevented aclocal from running
successfully on SunOS 5.10 with GNU m4 1.4.5 and GNU Autoconf 2.61

A tarball which reproduces mentioned problem is the one dated July-28-2008
http://cool.haxx.se/curl-daily/curl-7.19.0-20080728.tar.gz

We actually don't need all the bells and whistles that the above mechanism
provides. We only need to include our m4/reentrant.m4 file in acinclude.m4
so here we go with this simpler mechanism.

needed, and being able to define it if appropriate for further configure tests
as well as for the generated config file.

Introduced reentrant.m4 intended for our reentrant related autotools/m4 macros.

normal build/install (only with the 'make check' target), so that a
build failure in the examples isn't fatal.

make use of mv's backup feature so that calling the ca-bundle target more than once will never fail; ignore error which can occure if for whatever reason there's no orignial ca-bundle.crt to rename.

it works the same way for configure-based platforms as for non-configure ones

installed on 'make install' time.

since there's no use building the whole test suite first and _then_ tell it
doesn't work anyway...

dist archive. Preparing for a new maketgz.

message.

as otherwise will make distcheck fail

include files and docs, so now I've added a custom install hook to run
make install for docs and install when data is installed at the top-level.

Make the test stuff get built when we run 'make test' instead.

'make distcheck' doesn't pass

single failures

should be removed soonish.