Hi , I try to build libtool 2.4.6 on Ubuntu 18.04 and virtualbox (x86_64) ? I have done first a git from git://git.savannah.gnu.org/libtool.git Then ./boostrap ./configure Here i could see during this command many binaries caracters after : < checking for the default library search path > And after it finish by ...ERROR ....fails sanity check !!!! [cid:image005.png@01D57D02.35FF7B80] I cannot send you the file because of this binaires caracters !! But a just a screenshot of config.log just before unreadable party: [cid:image007.png@01D57D02.35FF7B80] And it continue like that more and more [cid:image008.png@01D57D02.35FF7B80] I have 2 gcc on my ubuntu gcc-7 and gcc-8 and it seems that gcc-7 is executed because when i type the command : * gcc -version => i get gcc 7.4.0 Thx for some helps !!! thierry This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.