Hello,
it seems we have discovered an Autoconf problem, so I'm moving this
subthread to bug-autoconf. Make sure to cc Jason.
On Wed, Aug 03, 2005 at 10:17:45PM +0200, Bruno Haible wrote:
> So it looks like your "build system" is doing
>
> ./configure --prefix=/xsys --srcdir=`pwd`
...
> This has the effect of starting a VPATH build, with $builddir = $srcdir.
> You're probably the first one in the world to use this kind of build
> configuration :-)
I wouldn't be so sure. As Jason told me in another post, he has never
used --srcdir; it was AC_CONFIG_SUBDIRS which generated the call:
/tmp/xsys.32647.0/gettext-0.14.5/gettext-tools/configure \
'--prefix=/xsys' 'CC=gcc' 'CXX=g++' '--cache-file=/dev/null' \
'--srcdir=/tmp/xsys.32647.0/gettext-0.14.5/gettext-tools'
AC_CONFIG_SUBDIRS always uses the --srcdir options, so that the subscripts
need not to autodetect it.
So far so good. But why had the upper configure srcdir set to full path?
The autodetection code (_AC_INIT_SRCDIR in lib/autoconf/general.m4) tries
the folowing candidates for srcdir:
1) directory name of the configure script
2) ..
So if configure was called with full path, srcdir is set to the full path.
This can cause problems: VPATH build is recognized by "test $srcdir = ."
(for example, search ac_vpsub in lib/autoconf/status.m4).
I think _AC_INIT_SRCDIR should try srcdir=. before the other two
candidates.
A patch is attached (not tested at all).
To try this patch, you have to:
- checkout CVS Autoconf,
- apply the patch,
- build & install Autoconf,
- unpack gettext and cd into it
- run autoconf
- run ./configure
- make dist
Then you have a new gettext tarball (though perhaps with the same name),
which you can try.
Have a nice day,
Stepan Kasal
2005-08-04 Stepan Kasal <[EMAIL PROTECTED]>
* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): When autodetecting,
try the current directory first.
Index: lib/autoconf/general.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/general.m4,v
retrieving revision 1.879
diff -u -c -r1.879 general.m4
*** lib/autoconf/general.m4 25 Jul 2005 18:10:25 -0000 1.879
--- lib/autoconf/general.m4 4 Aug 2005 10:29:06 -0000
***************
*** 474,492 ****
[m4_divert_push([PARSE_ARGS])dnl
# Find the source files, if location was not specified.
! if test -z "$srcdir"; then
ac_srcdir_defaulted=yes
! # Try the directory containing this script, then the parent directory.
! ac_confdir=`AS_DIRNAME(["$[0]"])`
! srcdir=$ac_confdir
! if test ! -r "$srcdir/$ac_unique_file"; then
! srcdir=..
fi
- else
- ac_srcdir_defaulted=no
fi
if test ! -r "$srcdir/$ac_unique_file"; then
! test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
fi
(cd $srcdir && test -r "./$ac_unique_file") 2>/dev/null ||
--- 474,499 ----
[m4_divert_push([PARSE_ARGS])dnl
# Find the source files, if location was not specified.
! if test "x$srcdir" != x; then
! ac_srcdir_defaulted=no
! else
ac_srcdir_defaulted=yes
! # We have to try the current directory first, because srcdir != .
! # would indicates a VPATH build. Then we try the directory
! # containing this script, and then the parent directory.
! if test -r "./$ac_unique_file"; then
! srcdir=.
! else
! ac_confdir=`AS_DIRNAME(["$[0]"])`
! if test -r "$ac_confdir/$ac_unique_file"; then
! srcdir=$ac_confdir
! else
! srcdir=..
! fi
fi
fi
if test ! -r "$srcdir/$ac_unique_file"; then
! test "$ac_srcdir_defaulted" = yes && srcdir="., $ac_confdir or .."
AC_MSG_ERROR([cannot find sources ($ac_unique_file) in $srcdir])
fi
(cd $srcdir && test -r "./$ac_unique_file") 2>/dev/null ||
