3:13 p.m.
There seems to be a bug in Gnulib's setenv module on Mac OS X. At
configure time it says:
checking whether setenv validates arguments ... no
(The test program it is running is:
| int
| main ()
| {
|
| if (setenv ("", "", 0) != -1) return 1;
| if (errno != EINVAL) return 2;
| if (setenv ("a", "=", 1) != 0) return 3;
| if (strcmp (getenv ("a"), "=") != 0) return 4;
|
| ;
| return 0;
| }
and this returns status code 4)
As a result, in stdlib.h, this:
#if @GNULIB_SETENV@
# if @REPLACE_SETENV@
# undef setenv
# define setenv rpl_setenv
is replaced by:
#if 1
# if 1
# undef setenv
# define setenv rpl_setenv
However, no rpl_setenv function is getting generated in libgnu.a, so
of course the program fails to link.
Any ideas?
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw
5:18 p.m.
Hi,
Richard W.M. Jones wrote:
There seems to be a bug in Gnulib's setenv module on Mac OS X.
At
configure time it says:
checking whether setenv validates arguments ... no
(The test program it is running is:
| int
| main ()
| {
|
| if (setenv ("", "", 0) != -1) return 1;
| if (errno != EINVAL) return 2;
| if (setenv ("a", "=", 1) != 0) return 3;
| if (strcmp (getenv ("a"), "=") != 0) return 4;
|
| ;
| return 0;
| }
and this returns status code 4)
This is normal. It's a small bug in the system's setenv routine.
As a result, in stdlib.h, this:
#if @GNULIB_SETENV@
# if @REPLACE_SETENV@
# undef setenv
# define setenv rpl_setenv
is replaced by:
#if 1
# if 1
# undef setenv
# define setenv rpl_setenv
This is expected too.
However, no rpl_setenv function is getting generated in libgnu.a
If you do
$ grep LIBOBJ config.status
you should see something like this:
S["gl_LTLIBOBJS"]=" setenv.lo"
S["gl_LIBOBJS"]=" setenv.o"
If you do
$ grep -i _setenv config.status
you should see something like this (among others):
S["REPLACE_SETENV"]="1"
S["HAVE_SETENV"]="1"
S["GNULIB_SETENV"]="1"
If not, then please show the details.
Bruno
5:22 p.m.
On Sun, Mar 21, 2010 at 11:18:16PM +0100, Bruno Haible wrote:
If you do
$ grep LIBOBJ config.status
you should see something like this:
S["gl_LTLIBOBJS"]=" setenv.lo"
S["gl_LIBOBJS"]=" setenv.o"
$ grep LIBOBJ config.status | grep -i setenv
s,@gltests_LIBOBJS@,|#_!!_#| getugroups.o imaxtostr.o mgetgroups.o offtostr.o putenv.o
setenv.o symlink.o uinttostr.o umaxtostr.o unlinkdir.o,g
s,@gltests_LTLIBOBJS@,|#_!!_#| getugroups.lo imaxtostr.lo mgetgroups.lo offtostr.lo
putenv.lo setenv.lo symlink.lo uinttostr.lo umaxtostr.lo unlinkdir.lo,g
If you do
$ grep -i _setenv config.status
you should see something like this (among others):
S["REPLACE_SETENV"]="1"
S["HAVE_SETENV"]="1"
S["GNULIB_SETENV"]="1"
$ grep -i _setenv config.status
s,@GNULIB_SETENV@,|#_!!_#|1,g
s,@HAVE_SETENV@,|#_!!_#|1,g
s,@REPLACE_SETENV@,|#_!!_#|1,g
s,^\([ #]*\)[^ ]*\([ ]*HAVE_SETENV\)[ (].*,\1define\2 1 ,
s,^\([ #]*\)[^ ]*\([ ]*HAVE_RAW_DECL_SETENV\)[ (].*,\1define\2 1 ,
Hope that helps.
BTW, OS X by default comes with an ancient version of autoconf, 2.61,
if that affects things.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
Fedora now supports 80 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
6:04 p.m.
Richard W.M. Jones wrote:
If you do
> $ grep LIBOBJ config.status
> you should see something like this:
> S["gl_LTLIBOBJS"]=" setenv.lo"
> S["gl_LIBOBJS"]=" setenv.o"
$ grep LIBOBJ config.status | grep -i setenv
s,@gltests_LIBOBJS@,|#_!!_#| getugroups.o imaxtostr.o mgetgroups.o offtostr.o putenv.o
setenv.o symlink.o uinttostr.o umaxtostr.o unlinkdir.o,g
s,@gltests_LTLIBOBJS@,|#_!!_#| getugroups.lo imaxtostr.lo mgetgroups.lo offtostr.lo
putenv.lo setenv.lo symlink.lo uinttostr.lo umaxtostr.lo unlinkdir.lo,g
> If you do
> $ grep -i _setenv config.status
> you should see something like this (among others):
> S["REPLACE_SETENV"]="1"
> S["HAVE_SETENV"]="1"
> S["GNULIB_SETENV"]="1"
$ grep -i _setenv config.status
s,@GNULIB_SETENV@,|#_!!_#|1,g
s,@HAVE_SETENV@,|#_!!_#|1,g
s,@REPLACE_SETENV@,|#_!!_#|1,g
s,^\([ #]*\)[^ ]*\([ ]*HAVE_SETENV\)[ (].*,\1define\2 1 ,
s,^\([ #]*\)[^ ]*\([ ]*HAVE_RAW_DECL_SETENV\)[ (].*,\1define\2 1 ,
This is all as expected. Now you have to turn to your Makefile, and see
whether these gl_LIBOBJS are correctly reflected in that Makefile, and
why the setenv.o is not being built.
BTW, OS X by default comes with an ancient version of autoconf,
2.61,
if that affects things.
This should not be a problem. Gnulib supports all autoconf versions >= 2.59
(see the DEPENDENCIES file).
The logic behind how Gnulib chooses whether or not to include the
replacement function is fiendishly complex. Is there any way to force
it to include the replacement function?
Gnulib has already chosen to build the replacement function for setenv().
But something in or near your Makefiles is causing a problem.
Bruno
6:14 p.m.
On Mon, Mar 22, 2010 at 12:04:58AM +0100, Bruno Haible wrote:
This is all as expected. Now you have to turn to your Makefile, and
see
whether these gl_LIBOBJS are correctly reflected in that Makefile, and
why the setenv.o is not being built.
Part of the reason why setenv.o isn't being built is that setenv.c
doesn't exist. It isn't copied into the local directory by
gnulib-tool.
That led me to realize that the setenv module wasn't being mentioned
directly in my invocation of gnulib-tool. It seems like it was
previously being pulled in as a dependency of something. I have added
it as an explicit module, and now everything works.
Why would it not get setenv.c when pulled in as a dependency, but get
it when listed explicitly?
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
Fedora now supports 80 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
7:26 p.m.
Richard W.M. Jones wrote:
Part of the reason why setenv.o isn't being built is that
setenv.c
doesn't exist. It isn't copied into the local directory by
gnulib-tool.
That led me to realize that the setenv module wasn't being mentioned
directly in my invocation of gnulib-tool. It seems like it was
previously being pulled in as a dependency of something. I have added
it as an explicit module, and now everything works.
This should be needed only if your program uses the setenv() function.
Was setenv.c being pulled into the gltests/, maybe? Your experience is
very similar to the one Jim experienced today:
<http://lists.gnu.org/archive/html/bug-gnulib/2010-03/msg00277.html>
Bruno
6034
days inactive
6035
days old
5 comments
2 participants
participants (2)
-
Bruno Haible -
Richard W.M. Jones