GNU logs - #16972, boring messages


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Hi,

I'm really baffled by this message:

> /home/thilo/code/libtool-2.4.2/libtool --mode=install install net.la 
/home/thilo/code/usr/lib/sercom/sercomctl/
> libtool: install: error: cannot install `net.la' to a directory not ending 
in /home/thilo/code/usr/lib/sercom/sercomctl/

I'm installing to exactly that directory and it's complaining! Looks like this 
check is wrong, starting from line 3399 in libtool:

# Don't allow the user to place us outside of our expected
# location b/c this prevents finding dependent libraries that
# are installed to the same prefix.
# At present, this check doesn't affect windows .dll's that
# are installed into $libdir/../bin (currently, that works fine)
# but it's something to keep an eye on.
test "$inst_prefix_dir" = "$destdir" && \
func_fatal_error "error: cannot install \`$file' to a directory not ending in 
$libdir"

so basically, if $inst_prefix_dir and $destdir are equal, it throws an error? 
Are you sure it shouldn't be || instead of &&?

-- 
Beste regards,
Thilo Schulz




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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Thilo Schulz <thilo@HIDDEN>
Subject: bug#16972: Acknowledgement (Incorrect check for library target
 directory when relinking)
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Date: Sat, 08 Mar 2014 22:41:02 +0000

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16972: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D16972
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--- libtool.orig        2014-03-11 00:59:52.821999549 +0000
+++ libtool     2014-03-11 01:00:21.197220463 +0000
@@ -3402,7 +3402,7 @@
          # At present, this check doesn't affect windows .dll's that
          # are installed into $libdir/../bin (currently, that works fine)
          # but it's something to keep an eye on.
-         test "$inst_prefix_dir" = "$destdir" && \
+         test "$inst_prefix_dir" = "$destdir" || \
            func_fatal_error "error: cannot install \`$file' to a directory not 
ending in $libdir"
 
          if test -n "$inst_prefix_dir"; then

-- 
Best regards,
Thilo Schulz




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On 2014-03-11 02:03, Thilo Schulz wrote:
> --- libtool.orig        2014-03-11 00:59:52.821999549 +0000
> +++ libtool     2014-03-11 01:00:21.197220463 +0000
> @@ -3402,7 +3402,7 @@
>           # At present, this check doesn't affect windows .dll's that
>           # are installed into $libdir/../bin (currently, that works fine)
>           # but it's something to keep an eye on.
> -         test "$inst_prefix_dir" = "$destdir" && \
> +         test "$inst_prefix_dir" = "$destdir" || \
>             func_fatal_error "error: cannot install \`$file' to a directory not 
> ending in $libdir"
>  
>           if test -n "$inst_prefix_dir"; then
> 

Hi Thilo,

I seriously doubt that this change is correct. The code has been the way
it is since it was added 10+ years ago (commit d2c4f8f8fc). Well, the test
was written as

	if test "$inst_prefix_dir" = "$destdir"; then
	  $echo ...
	  exit
	fi

way back when, but that's equivalent to the current code.

Cheers,
Peter





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Hi,

> Hi Thilo,
>=20
> I seriously doubt that this change is correct. The code has been the way
> it is since it was added 10+ years ago (commit d2c4f8f8fc). Well, the test
> was written as
>=20
> 	if test "$inst_prefix_dir" =3D "$destdir"; then
> 	  $echo ...
> 	  exit
> 	fi
>=20
> way back when, but that's equivalent to the current code.

You're right. I had a more thorough look at the script as opposed to the=20
cursory glance before, and I now understand what's actually happening.

With the sed command:

          inst_prefix_dir=3D`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`

it searches for the trailing path, and replaces it with nothing. If that=20
trailing path is identical, inst_prefix_dir will be unequal to the original=
=20
destdir, so equality actually _is_ the error condition.

It didn't work in my case though, because in --link mode, the -rpath argume=
nt=20
had a trailing / and libtool removes the trailing slash from the installati=
on=20
directory argument in --install mode.

So here is a second patch that only fixes this failure of the check. Maybe =
you=20
want to strip libdir of trailing slashes in --link mode already, but that's=
=20
the libtool maintainer's choice.

=2D-- libtool.orig        2014-03-11 15:27:51.541596775 +0100
+++ libtool     2014-03-11 15:27:30.417597689 +0100
@@ -3393,8 +3393,11 @@
        dir+=3D"$objdir"
=20
        if test -n "$relink_command"; then
+         # $destdir has trailing slashes stripped, so must strip slashes f=
rom=20
$libdir as well
+         func_stripname '' '/' "$libdir"
+
          # Determine the prefix the user has applied to our future dir.
=2D         inst_prefix_dir=3D`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+         inst_prefix_dir=3D`$ECHO "$destdir" | $SED -e=20
"s%$func_stripname_result\$%%"`
=20
          # Don't allow the user to place us outside of our expected
          # location b/c this prevents finding dependent libraries that


=2D-=20
Beste Gr=FC=DFe,
Thilo Schulz





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