Re: [bug-libunistring] Automake 1.16.4 issue

[Bruno Haible]

Hi Jörg,

Following up on our mail exchange from last week:

> > A first patch is attached.
> 
> Thanks. Your patch looks interesting. I will see whether I can use it to 
> simplify gl_INIT_PACKAGE.

Actually, your patch (0010-AC_INIT.patch) causes a bug that is visible
e.g. in https://packages.debian.org/sid/libunistring-dev :
In the generated binaries, the file /usr/include/unistring/version.h
contains
  #define _LIBUNISTRING_VERSION 0x000000
I can reproduce this also in a local build.
You can see the difference in config.status already: It contains
  S["HEXVERSION"]="0x000000"
  S["VERSION"]=""
where in fact it should contain
  S["HEXVERSION"]="0x00090A"
  S["VERSION"]="0.9.10"

This, in turn, makes all programs that use the libunistring.m4 macro think
that the installed version is too old:

  checking how to link with libunistring... -lunistring
  checking for libunistring version... 0.0.0
  error: PACKAGE requires libunistring >= 0.9.1.1

Suggestion: Discard your patch and use the one from
https://git.savannah.gnu.org/gitweb/?p=libunistring.git;a=commitdiff;h=15e4365267e316f15222b8bf9f0a7cd0db231e9c

Bruno