The ltmain.sh file is a dangling symlink

[Derick Rethans]

I am the maintainer of several (non packaged) PHP extensions. A user reported through https://github.com/mongodb/mongo-php-driver/issues/255 that "phpize" now throws a warning about a missing ltmain.sh (details about that in the previously mentioned GitHub issue).

This is on (beta1):

derick@ubuntu-desktop-16:/tmp/xdebug$ lsb_release -rd
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04

After some research, I found out that the problem was caused by a dangling symlink:

In /usr/lib/php/20151012/build, the ltmain.sh "file" is a symlink to ../../../../share/libtool/confg/ltmain.sh. However, the target does not exist. This means that PHP's phpize can not copy it. And that's why you get the error. The correct symlink is to ../../../../share/libtool/build-aux/ltmain.sh, and if I change it to that, it works:

cd /usr/lib/php/20151012/build
sudo rm ltmain.sh
sudo ln -s ../../../../share/libtool/build-aux/ltmain.sh .
cd /tmp/mongo-php-driver
phpize

Which then outputs:

Configuring for:
PHP Api Version: 20151012
Zend Module Api No: 20151012
Zend Extension Api No: 320151012

./configure and make and make install work fine too then.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: php7.0-dev 7.0.3-3
ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2
Uname: Linux 4.4.0-7-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Mar 9 12:02:13 2016
InstallationDate: Installed on 2016-03-09 (0 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160225.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: php7.0
UpgradeStatus: No upgrade log present (probably fresh install)

[Nish Aravamudan (nacc)]

Thanks for this report. I've seen it as well. Will make sure it gets fixed! It has to do with our current package coming from Debian which has both php5 & php7 support, I think.

[Ondřej Surý (ondrej)]

Already fixed in 7.0.3-4 and higher.

[Nish Aravamudan (nacc)]

Ondřej,

Is this line right?

LIBTOOL_VERSION := $(shell dpkg-query -f'$${Version}' -W libtool)

Running that here, I get:

$2.4.6-0.1

?

[Ondřej Surý (ondrej)]

make replaces $$ with $, so it should be correct.

don't run it by hand, but you can use

$(error $(LIBTOOL_VERSION))

at the next line in d/rules to print the value that's set into $(LIBTOOL_VERSION)

[Nish Aravamudan (nacc)]

Ondřej,

Ah ok, thanks! Given the fix is already in and we've merged up to 7.0.3-9 (it's in proposed), I'll mark as fix committed.

[Matthias Klose (doko)]

this looks related (also seen in Ubuntu):
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815765

[Nish Aravamudan (nacc)]

From an uptodate (php7.0=7.0.3-9ubuntu1) xenial environment:

(xenial-amd64)root@pitfall:/root# ls -ahl /usr/lib/php/20151012/build/ltmain.sh
lrwxrwxrwx 1 root root 45 Feb 26 00:01 /usr/lib/php/20151012/build/ltmain.sh -> ../../../../share/libtool/build-aux/ltmain.sh

[Derick Rethans (ubuntu-v0)]

I can confirm that this is fixed now.