$YACC is really bison or
yacc, not just relying on the program name.
automake also provides a helper script 'ylwrap' to deal with yacc/bison
compilations and do some file renaming.
Fang
David Fang
http://www.csl.cornell.edu/~fang/
http://www.achronix.com/
dnl @synopsis HACKT_ARG_VAR_YACC
dnl
On 08/16/2010 04:27 PM, Peter O'Gorman wrote:
On 08/16/2010 07:37 AM, Paolo Bonzini wrote:
On 08/16/2010 12:54 AM, David Fang wrote:
Actually, 'pogma' pointed out that this comes from the autoconf macros
in libtool.m4, near AC_MSG_CHECKING([how to print strings]).
I'm using libtool-2.2.10
single quote protection).
I don't know yet whether that is forward-compatible with newer versions of
Bourne shell.
Don't recall which version of autoconf broke this, betweem 2.63 and
latest.
Fang
David Fang
http://www.csl.cornell.edu/~fang/
http://www.achronix.com/
On 08/15/2010 06:59 PM, David Fang wrote:
The ECHO that is chosen by autoconf on darwin8 (printf %s\n) is buggy:
fangism % printf %s\n foo
foonfangism% printf '%s\n' foo
foo
Must be due to the version of the Bourne shell (2.05b).
Failure is similar with sh-3.2.
The 'correct' value of ECHO
On 08/15/2010 06:59 PM, David Fang wrote:
The ECHO that is chosen by autoconf on darwin8 (printf %s\n) is buggy:
fangism % printf %s\n foo
foonfangism% printf '%s\n' foo
foo
Must be due to the version of the Bourne shell (2.05b).
Failure is similar with sh-3.2.
The 'correct' value of ECHO
Actually, 'pogma' pointed out that this comes from the autoconf macros in
libtool.m4, near AC_MSG_CHECKING([how to print strings]).
I'm using libtool-2.2.10 right now.
Fang
On 08/15/2010 06:59 PM, David Fang wrote:
Hi,
The ECHO that is chosen by autoconf on darwin8 (printf %s\n) is buggy
? libltdl's lt_dlopenext() loads modules given the base name
without the file extension, which takes some pain out of portability.
Fang
David Fang
http://www.csl.cornell.edu/~fang/
http://www.achronix.com/
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On Saturday, January 20, 2007 @ 5:50p, Ed Hartnett wrote:
David Byron wrote:
Any suggestions how? I've seen people write scripts to
modify/rename config.h but that seems overkill in this
case.
How about something like:
#ifndef MY_CONFIG_INCLUDED
#include ../my/config.h
? I can't help but
guess, It almost looks like you want to use them like so (in automake):
AM_CPPFLAGS = -I$(top_builddir)/whatever -I$(top_srcdir)/whatever
If you're using those variables for something else other than compiling,
it may just be simpler to use what's available at make-time.
David
New since gcc-4.0.
dnl Define HAVE_ATTRIBUTE_VISIBILITY_HIDDEN if supported.
dnl Define HAVE_ATTRIBUTE_VISIBILITY_DEFAULT if supported.
dnl
dnl @category Cxx
dnl @version 2006-05-08
dnl @author David Fang [EMAIL PROTECTED]
dnl @license AllPermissive
dnl
AC_DEFUN([FANG_CXX_ATTRIBUTE_VISIBILITY
On Tue, 22 Aug 2006, Jan Engelhardt wrote:
Hi David,
I am afraid using -Werror does not work, it really needs -fvis.. on the
command line:
$ cat x.c
int __attribute__((visibility(hidden))) mx(void) { return 1337; }
$ cc -c x.c -Wall -Werror
(No error)
$ cc -c x.c -Wall -Werror
by David Fang in
http://lists.gnu.org/archive/html/autoconf/2006-08/msg00045.html.
* doc/autoconf.texi (Header Templates, Default Includes):
(Particular Functions, Generic Functions, Header Portability):
(Particular Headers, Generic Headers, Generic Declarations, Guidelines
Hi autoconf-ers,
I'm having a problem configuring a project using -Werror because
tests for AC_CHECK_SIZEOF() all die in the following manner (excerpt of
config.log):
(These tests fail on FreeBSD 4.3 which doesn't have stdint.h.
The AC_CHECK_HEADERS([stdint.h]) confirms this during
Andreas Schwab wrote:
Try ./config.status --version.
Thanks! But how could I have guessed this functionality is available under
this option?
$ ./config.status --help
...
-V, --versionprint version number, then exit
...
Should better say:
-V, --versionprint version number
Sometimes I wish to call configure with different flags. For example:
./configure CXXFLAGS=-ggdb -Wall -std=c++98
or
./configure CXXFLAGS=-O3 -funroll-loops --with-gmp
or some more like these. Having to be writing these all the time is
cumbersome and error-prone since for debugging or for
Sorry for the confusion, I meant that the need to be *identical*, not just
derivable from the other, because I'm containing their objects (value),
not references.
struct foo { ifstream _stream; };
I think you are making a design bug. An iostream is generally not
copyable, so you
I naively tried to use AC_CHECK_FILE(S) on /dev/stdin /dev/stdout
and /dev/stderr to detect their presence, but the test result is
'no' for these 'files'.
These are not real devices. You may find entries in /dev, which
suggest otherwise, but look closely: if they exist at all, they
To give a little more context for what I'm trying to do in C++
(experimentally): I've discovered that std::ifstream foo(/dev/stdin)
results in a file stream that works just like cin, likewise for stdout,
etc... Just like in standard C, one could use stdin, stdout, stderr as
FILE*,
Whether /dev/std{in,out,err} are devices, symlinks, or even present
is going to be system dependent.
They're real character devices on NetBSD:
$ ls -l /dev/std{in,out,err}
crw-rw-rw- 1 root wheel 22, 2 Feb 19 11:01 /dev/stderr
crw-rw-rw- 1 root wheel 22, 0 Feb 19 11:01 /dev/stdin
Yes (without having tested it). A couple of very minor nits inline:
AC_DEFUN([AC_CXX_STD_IFSTREAM_DEV_STDIN],
Please do not name your private macro with `AC_*'. That's the name
space reserved for macros from Autoconf proper. It's commonly seen
to use ones initials or a project prefix
Hi,
I naively tried to use AC_CHECK_FILE(S) on /dev/stdin /dev/stdout
and /dev/stderr to detect their presence, but the test result is 'no' for
these 'files'. The result is 'yes', however, for /dev/null.
Is there a more appropriate test for the presence of these special
files? or
(manual section) came out of this thread.
David Fang
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to do with AM_MAINTAINER_MODE.
(And, as I said in my post to another sub-thread, forget about
AM_MAINTAINER_MODE, too.)
David Fang
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-generate a Makefile before maintainer-cleaning,
which is extremely rare (for me).
David Fang
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aclocal $ACLOCAL_FLAGS -I config
(autoheader --version) /dev/null /dev/null 21 autoheader
automake --copy --add-missing --verbose --gnu $am_opt
autoconf
8-
HTH,
David Fang
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that there will be no foo.h: foo.h.tmp dependency
automatically generated to auto-reconf, which would be nice. It's not
difficult to add the rule in the Makefile.am manually, but it's just one
more thing to remember (and explain to someone reading through my files).
I'll play around some more...
David Fang
).
Is this what you meant? Admittedly, I'm sure how to use a
stamp-file in this case (I've only hacked my own stamp schemes for
completely different situations in Makefiles).
David Fang
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Is this what you meant? Admittedly, I'm sure how to use a
stamp-file in this case (I've only hacked my own stamp schemes for
completely different situations in Makefiles).
Sorry, last post should've read:
I'm UNSURE how to use a stamp-file in this case...
David Fang
Hi,
What if you capitalized SUBDIRS in Makefile.am? (That's how it
looks in all examples I've seen. :) )
The top-level Makefile.am is a one-liner:
subdirs = src
and the src/Makefile.am is also a one-liner, pointing to the two
subfolders:
subdirs = sub1 sub2
David Fang
have these variables isolated
from config.h. Another idea could be to provide an option in AC_DEFINE to
retarget to another file besides the default config.h?
Any ideas?
David Fang
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?
Hi,
I think a combination of
AM_CXXFLAGS =
and
configure CXXFLAGS=
will work.
Probably just the latter is enough.
I believe -g and -O2 are picked up by default by autoconf when nothing is
specified.
David Fang
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/actions to
autoreconf? There's *gotta* be something simple here, but I thought I'd
throw the question out before I concoct some dirty hack.
Thanks in advance!
David Fang
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