This quadigraph used before a C preprocessor 'define' directive could
be fooling M4, when processing this file, and make it think that the
line contains a pure M4 'define' macro.
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.
because at the current point in time I think the benefit of adding that new
return code is very slim and it is a lot of work to introduce new return codes
(for docs and maintenance etc)
I added "145 - Phil Blundell's CURLOPT_SCOPE patch/work" since I want it
sorted/committed.
but it breaks aclocal execution on some systems, with the following error:
Can't locate object method "rel2abs" via package "File::Spec" at /usr/local/bin/aclocal line 256.
overrun" (http://curl.haxx.se/bug/view.cgi?id=2026240) identifying two
problems, and providing the fix for them:
- CURL_READFUNC_PAUSE did in fact not pause the _sending_ of data that it is
designed for but paused _receiving_ of data!
- libcurl didn't internally set the read counter to zero when this return
code was detected, which would potentially lead to junk getting sent to
the server.
http://sources.redhat.com/automake/automake.html#Extending-aclocal documents
that starting with Automake 1.8, aclocal will warn about all underquoted calls
to AC_DEFUN due to the fact that in a single aclocal run it might include more
than once all .m4 files which it finds available, this includes .m4 files from
other software packages.
If the first argument to AC_DEFUN is underquoted and the same macro is included
more than once, successive inclusions after the first one will expand the macro
instead of assuming it is the same as the first one included.
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.
non-zero with the fixed value of 1. We should strive at making options
support '1' for enabling them mentioned explicitly, as that then will allow
us for to extend them in the future without breaking older programs.
