As Ludovic wrote
> Actually libc's configure doesn't use the normal AC_CONFIG_SUBDIRS
> mechanism, and instead runs add-on configure scripts by itself, without
> arguments AFAICS.
The part responsible for this is in the attached file and specifically the
part:
> libc_add_on_frag=$libc_add_on_srcdir/configure
I was thinking of modifying the configure script so it would use the
AC_CONFIG_SUBDIRS mechanism and configure all the addons with the flags
passed in the glibc configure.
Then I would apply the patch in a patch-phase before configure gets called
in guix.
What do you think?
Manolis
# Now source each add-on's configure fragment.
# The fragments can use $srcdir/$libc_add_on to find themselves,
# and test $add_ons_automatic to see if they were explicitly requested.
# A fragment can clear (or even change) $libc_add_on to affect
# whether it goes into the list to be actually used in the build.
use_add_ons=
for libc_add_on in $add_ons; do
# Test whether such a directory really exists.
# It can be absolute, or relative to $srcdir, or relative to the build dir.
case "$libc_add_on" in
/*)
libc_add_on_srcdir=$libc_add_on
;;
*)
test -d "$srcdir/$libc_add_on" || {
if test -d "$libc_add_on"; then
libc_add_on="`pwd`/$libc_add_on"
else
as_fn_error $? "add-on directory \"$libc_add_on\" does not exist"
"$LINENO" 5
fi
}
libc_add_on_srcdir=$srcdir/$libc_add_on
;;
esac
libc_add_on_frag=$libc_add_on_srcdir/configure
libc_add_on_canonical=
libc_add_on_config_subdirs=
if test -r "$libc_add_on_frag"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: running configure fragment for
add-on $libc_add_on" >&5
$as_echo "$as_me: running configure fragment for add-on $libc_add_on" >&6;}
libc_add_on_canonical=unknown
libc_add_on_subdirs=
. "$libc_add_on_frag"
test -z "$libc_add_on" || {
configured_add_ons="$configured_add_ons $libc_add_on"
if test "x$libc_add_on_canonical" = xunknown; then
as_fn_error $? "fragment must set \$libc_add_on_canonical" "$LINENO" 5
fi
for d in $libc_add_on_subdirs; do
case "$libc_add_on" in
/*) subdir_srcdir="$libc_add_on" ;;
*) subdir_srcdir="\$(..)$libc_add_on" ;;
esac
case "$d" in
.)
d="${libc_add_on_canonical:-$libc_add_on}"
;;
/*)
subdir_srcdir="$d"
;;
*)
subdir_srcdir="$subdir_srcdir/$d"
;;
esac
d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'`
add_on_subdirs="$add_on_subdirs $d"
test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars
$d-srcdir = $subdir_srcdir"
done
for d in $libc_add_on_config_subdirs; do
case "$d" in
/*) as_fn_error $? "fragment uses absolute path in
\$libc_add_on_config_subdirs" "$LINENO" 5 ;;
esac
if test ! -d "$libc_add_on_srcdir/$d"; then
as_fn_error $? "fragment wants to configure missing directory $d"
"$LINENO" 5
fi
case "$libc_add_on" in
/*) as_fn_error $? "relative path required for add-on using
\$libc_add_on_config_subdirs" "$LINENO" 5 ;;
esac
subdirs="$subdirs $libc_add_on/$d"
done
}
fi
if test -n "$libc_add_on"; then
if frags=`ls -d $libc_add_on_srcdir/sysdeps/*/preconfigure 2> /dev/null`
then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking add-on $libc_add_on for
preconfigure fragments" >&5
$as_echo_n "checking add-on $libc_add_on for preconfigure fragments... " >&6; }
for frag in $frags; do
name=`echo "$frag" | sed 's@/[^/]*$@@;s@^.*/@@'`
echo $ECHO_N "$name $ECHO_C" >&6
. "$frag"
done
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
$as_echo "" >&6; }
fi
use_add_ons="$use_add_ons $libc_add_on"
add_ons_pfx="$add_ons_pfx $libc_add_on/"
test -z "$libc_add_on_canonical" ||
add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical"
fi
done
# Use echo to strip excess whitespace.
add_ons="`echo $use_add_ons`"
fi
