GNU m4 --error-output is the same as -o despite the name. It does NOT
affect warnings, error messages, and 'errprint' output so drop the
misguided bit of code that tried to freopen stderr without closing it
on failure. Drop -e (which was our local invention) and make merge
--error-output with -o so that both set traceout. Make trace_file()
preserve the old traceout on error and return error status so that the
caller can emit appropriate warning.
Do not yet support disabling tracing with an empty name, the rest of
the code is not ready, we don't do -o positionally and we don't have
`debugfile'.
* Rename "config.h" to "nbtool_config.h" and
HAVE_CONFIG_H to HAVE_NBTOOL_CONFIG_H.
This makes in more obvious in the source when we're using
tools/compat/config.h versus "standard autoconf" config.h
* Consistently move the inclusion of nbtool_config.h to before
<sys/cdefs.h> so that the former can provide __RCSID() (et al),
and there's no need to protect those macros any more.
These changes should make it easier to "tool-ify" a program by adding:
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
to the top of the source files (for the general case).
round has been tested on Solaris/x86 and Linux hosts.
* Add host tools cap_mkdb, ctags, m4, uudecode.
* Protect __RCSID() and __COPYRIGHT() better.
* Reduce the number of places that need to include "config.h", to keep
sources closer to their "vanilla" versions.
* Add more compat #defines and autoconf-checked functions.
* Provide some GNUisms as extensions.
* Provide dynamically growable string space.
* Make define(defn(foo)) work correctly for builtins.
(The current version is supposed to be capable of satisfying autoconf.)
All still relevant NetBSD changes have been preserved in this version, and
formatting and style fixes have been applied in various places.
Thanks to Masao Uebayashi <uebayasi@soum.co.jp> for pointing this out.
make sure that pushed-back 0xff character isn't accidentally
interpreted as an EOF because of sign extension when chars were being
assigned to pbents. (signed-char machines lost.) To do this, make
putback() and pbstr() operate only on unsigned chars, and add a
putbackeof() function to do the obvious thing when necessary.
that typedef 'short'. 'char' (which was previously used) because char
may be unsigned and ((char)EOF) != EOF if that is the case. That was
causing the (char)EOF (0xff) pushed back in main to be interepreted as
a character, and, in some cases, to be written to the output. 'short'
was used rather than 'signed char' because if the latter is used,
0xff characters in the input would confuse m4. (No point in introducing
(more?) 8-bit lossage.)
uwe