libspf2-1.2.10 is bundled with malformed configure script

Hi list,

I hope this is an appropriate place to report issues with libspf2.
I am writing here because bug and issue tracker at rt.anarres.org that
is announced on the libspf2 site is not available.

I just tried to build libspf2-1.2.10 and faced the following warning:

cd libspf2-1.2.10
+ ./configure --prefix=/usr
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
./configure: line 3001: AX_WITH_PERL: command not found

[rest of the log is skipped]

Looks like the definition of an AX_WITH_PERL macro wasn't available on
the machine where the tarball was generated.

I checked the configure script from the tarball for version 1.2.9 and
it has this macro substituted. So the problem appeared in 1.2.10.

Quick googling led me to this message:

  https://groups.google.com/forum/#!topic/gnu.announce/Fvf8NRlx86Q

It says among other

> The obsolete macros AX_CFLAGS_WARN_ALL_ANSI, AX_C_IFDEF,
> AX_C_PRINTF_THSEP, AX_GCC_OPTION, AX_WITH_GUILE, AX_WITH_PERL,
> AX_WITH_PYTHON, and AX_WITH_RUBY have been deleted.

So autoconf environment seems changed since time version 1.2.9
was released and configure.ac needs to updated somehow.

Hope this helps.

-- 
Vitaly Sinilin <[email protected]>