Re: Autoconf regex test
Geoff Hutchison <[EMAIL PROTECTED]> writes:
| I need some help on writing a rather strange autoconf test. If this seems
| painfully obvious, I'm sorry, I'm just drawing a blank.
|
| My GPL'ed package includes the glibc regex.c source. Right now, this
| causes segfaults on BSDI and Digital Unix. I'm in the process of working
| out why this happens, but in the meantime, I'd like a test to see whether
| the included regex.o should be compiled and linked in.
|
| Basically, I want an AC_TRY_RUN test that includes the regex.c file in
| compilation. Is this possible, or can you only compile/link the test
| program file?
Sounds like this macro will do what you want -- to see it in action,
look in m4/ in ftp://alpha.gnu.org/gnu/fetish/sh-utils-2.0g.tar.gz
#serial 7
dnl Initially derived from code in GNU grep.
dnl Mostly written by Jim Meyering.
dnl Usage: jm_INCLUDED_REGEX([lib/regex.c])
dnl
AC_DEFUN(jm_INCLUDED_REGEX,
[
dnl Even packages that don't use regex.c can use this macro.
dnl Of course, for them it doesn't do anything.
# Assume we'll default to using the included regex.c.
ac_use_included_regex=yes
# However, if the system regex support is good enough that it passes the
# the following run test, then default to *not* using the included regex.c.
# If cross compiling, assume the test would fail and use the included
# regex.c. The first failing regular expression is from `Spencer ere
# test #75' in grep-2.3.
AC_CACHE_CHECK([for working re_compile_pattern],
jm_cv_func_working_re_compile_pattern,
AC_TRY_RUN(
[#include
#include
int
main ()
{
static struct re_pattern_buffer regex;
const char *s;
re_set_syntax (RE_SYNTAX_POSIX_EGREP);
/* Add this third left square bracket, [, to balance the
three right ones below. Otherwise autoconf-2.14 chokes. */
s = re_compile_pattern ("a[[:]:]]b\n", 9, ®ex);
/* This should fail with _Invalid character class name_ error. */
if (!s)
exit (1);
/* This should succeed, but doesn't for e.g. glibc-2.1.3. */
s = re_compile_pattern ("{1", 2, ®ex);
exit (s ? 1 : 0);
}
],
jm_cv_func_working_re_compile_pattern=yes,
jm_cv_func_working_re_compile_pattern=no,
dnl When crosscompiling, assume it's broken.
jm_cv_func_working_re_compile_pattern=no))
if test $jm_cv_func_working_re_compile_pattern = yes; then
ac_use_included_regex=no
fi
test -n "$1" || AC_MSG_ERROR([missing argument])
syscmd([test -f $1])
ifelse(sysval, 0,
[
AC_ARG_WITH(included-regex,
[ --without-included-regex don't compile regex; this is the default on
systems with version 2 of the GNU C library
(use with caution on other system)],
jm_with_regex=$withval,
jm_with_regex=$ac_use_included_regex)
if test "$jm_with_regex" = yes; then
AC_SUBST(LIBOBJS)
LIBOBJS="$LIBOBJS regex.$ac_objext"
fi
],
)
]
)
Testing for a library with $CXX (instead of $CC)
Hi all, Is it possible to test for a library using $CXX instead of $CC? My problem is that on a Solaris box, some libraries won't link with cc while they do with CC (e.g. qt). Or is it better to set $CC to CC (instead of having $CC=cc and $CXX=CC). TIA, Fred
GNU make 3.79 released
[[ Note to pretesters: until the tar file is available on ftp.gnu.org you can access it via ftp://alpha.gnu.org/gnu/make/make-3.79.tar.gz ]] GNU Make version 3.79 is now available for download. The `make' utility automates the process of compilation. When the source files of a large program change, Make automatically determines which pieces need to be updated and recompiles only those files. GNU make is fully compliant with the POSIX.2 standard, and also has many powerful extensions: flexible implicit pattern rules, an extensive set of text manipulation functions, conditional evaluation of makefiles, support for parallel command execution, automatic updating of makefiles, and more. In addition to UNIX systems, it can be built for DOS, Windows (95/98/NT), VMS, and Amiga platforms. This release of GNU make contains several important bug fixes and some new features, including improved flexibility in debugging options. This version also integrates GNU gettext for internationalization support, with at least partial translations for Dutch, French, German, Korean, Polish, Russian, and Spanish. Please see the ABOUT-NLS file for information on enabling internationalization, and for reporting problems with any translations. See the NEWS file and the GNU Make User's Manual, contained in the distribution, for full details on user-visible changes. Please see the README and INSTALL files for information on building GNU make for your system. Bugs and problems should be reported to the <[EMAIL PROTECTED]> mailing list. Requests for help can be sent to <[EMAIL PROTECTED]>, or one of the gnu.utils.bug or gnu.utils.help USENET newsgroups. See the README file for information on accessing the online bug database, or the latest versions of GNU make via CVS. The complete distribution is available from the GNU ftp site ftp://ftp.gnu.org/gnu/make/ and its mirrors. Please see: http://www.gnu.org/order/ftp.html for a complete list of international mirror sites. No patch file is currently available, since it was over 245k compressed. If you require a patch file please contact <[EMAIL PROTECTED]>. make-3.79.tar.gz is 959005 bytes MD5 checksum is: a59cc0e5792474f6809131650d2fff5a make-3.79.tar.gz Have fun! -- --- Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at: http://www.gnu.org http://www.ultranet.com/~pauld/gmake/ "Please remain calm...I may be mad, but I am a professional." --Mad Scientist
Re: Testing for a library with $CXX (instead of $CC)
On Apr 5, 2000, F Labrosse <[EMAIL PROTECTED]> wrote:
> Is it possible to test for a library using $CXX instead of $CC?
This is an `autoconf', not `automake', question. See the `Language
Choice' node in the autoconf manual.
--
Alexandre OlivaEnjoy Guaraná, see http://www.ic.unicamp.br/~oliva/
Cygnus Solutions, a Red Hat companyaoliva@{redhat, cygnus}.com
Free Software Developer and EvangelistCS PhD student at IC-Unicamp
oliva@{lsd.ic.unicamp.br, gnu.org} Write to mailing lists, not to me
Re: Testing for a library with $CXX (instead of $CC)
> "Fred" == F Labrosse <[EMAIL PROTECTED]> writes: Fred> Is it possible to test for a library using $CXX instead of $CC? Fred> My problem is that on a Solaris box, some libraries won't link Fred> with cc while they do with CC (e.g. qt). Can't you set the language to C++ and then test? Seems like this ought to work. If not, it is probably an autoconf bug. Fred> Or is it better to set $CC to CC (instead of having $CC=cc and Fred> $CXX=CC). No, that's worse. Tom
Re: automake --add-missing --copy
> "Lars" == Lars J Aas <[EMAIL PROTECTED]> writes: Lars> I've always been annoyed that automake --add-missing --copy Lars> doesn't pass the "--copy"-option along to libtoolize, so I end Lars> up with symlinked config.guess, config.sub, ltconfig and Lars> ltmain.sh. Fixed. Lars> This might be fixed already, it's an "old" (month at least) Lars> automake 1.4a I've got installed. That's funny, given the recent pace of development. Tom
