cannot install `libhkl3d.la' to a directory not ending in /usr/local/lib

[picca]

Hello,

I am working on a Debian unstable with libtool
picca@ORD03037:~$ libtool --version
libtool (GNU libtool) 2.4.2

When I try to install my project, I got this error message:

make[3]: entrant dans le répertoire « /home/picca/Projets/hkl/hkl3d »
 /bin/mkdir -p '/tmp/picca/.local/lib'
 /bin/sh ../libtool   --mode=install /usr/bin/install -c   libhkl3d.la 
'/tmp/picca/.local/lib'
libtool: install: error: cannot install `libhkl3d.la' to a directory not ending 
in /usr/local/lib
make[3]: *** [install-libLTLIBRARIES] Erreur 1

but if I look a little bit closer, previously in the same project
another library was install without problem at the same location.

make[2]: entrant dans le répertoire « /home/picca/Projets/hkl/hkl »
 /bin/mkdir -p '/tmp/picca/.local/lib'
 /bin/sh ../libtool   --mode=install /usr/bin/install -c   libhkl.la 
'/tmp/picca/.local/lib'
libtool: install: /usr/bin/install -c .libs/libhkl.so.5.0.0 
/tmp/picca/.local/lib/libhkl.so.5.0.0
libtool: install: (cd /tmp/picca/.local/lib && { ln -s -f libhkl.so.5.0.0 
libhkl.so.5 || { rm -f libhkl.so.5 && ln -s libhkl.so.5.0.0 libhkl.so.5; }; })
libtool: install: (cd /tmp/picca/.local/lib && { ln -s -f libhkl.so.5.0.0 
libhkl.so || { rm -f libhkl.so && ln -s libhkl.so.5.0.0 libhkl.so; }; })
libtool: install: /usr/bin/install -c .libs/libhkl.lai 
/tmp/picca/.local/lib/libhkl.la
libtool: install: /usr/bin/install -c .libs/libhkl.a 
/tmp/picca/.local/lib/libhkl.a
libtool: install: chmod 644 /tmp/picca/.local/lib/libhkl.a
libtool: install: ranlib /tmp/picca/.local/lib/libhkl.a
libtool: install: warning: remember to run `libtool --finish
 /usr/local/lib'

so my questions is:

is it a libtool bug ?

thanks

Frederic

-- 
GPG public key 4096R/4696E015 2011-02-14
    fingerprint = E92E 7E6E 9E9D A6B1 AA31  39DC 5632 906F 4696 E015
uid  Picca Frédéric-Emmanuel <pi...@synchrotron-soleil.fr>

GPG public key 1024D/A59B1171 2009-08-11
    fingerprint = 1688 A3D6 F0BD E4DF 2E6B  06AA B6A9 BA6A A59B 1171
uid  Picca Frédéric-Emmanuel <pi...@debian.org>

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