Bug#588788: perl: ftbfs with gcc4.5

[Paul Brook]

Package: perl
Version: 5.10.1-13
Severity: normal
Tags: patch

By default patchlevel.h includes git_version.h.  The latter is generated by configure.
However the debian/config.debian uses patchlevel.h before running configure.
This has always been fairly borken, but old GCC processed the rest of the file anyway, and none noticed the compiler errors. Recent GCC consider this a fatal error and produce no output.

Defining PERL_PATCHLEVEL_H_IMPLICIT avoids requiring git_version.h while still providing the necessary symbols.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.33-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages perl depends on:
ii  libbz2-1.0              1.0.5-4          high-quality block-sorting file co
ii  libc6                   2.11.2-2         Embedded GNU C Library: Shared lib
ii  libdb4.7                4.7.25-9         Berkeley v4.7 Database Libraries [
ii  libgdbm3                1.8.3-9          GNU dbm database routines (runtime
ii  perl-base               5.10.1-13        minimal Perl system
ii  perl-modules            5.10.1-13        Core Perl modules
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages perl recommends:
ii  make                          3.81-8     An utility for Directing compilati
ii  netbase                       4.42       Basic TCP/IP networking system

Versions of packages perl suggests:
pn  libterm-readline-gnu-perl | l <none>     (no description available)
ii  perl-doc                      5.10.1-13  Perl documentation

-- no debconf information
-------------- next part --------------
=== modified file 'debian/config.debian'
--- debian/config.debian	2010-05-04 16:32:38 +0000
+++ debian/config.debian	2010-07-12 09:46:37 +0000
@@ -2,7 +2,8 @@
 
 eval $(echo '#include "./patchlevel.h"
 SETver=PERL_REVISION.PERL_VERSION;
-SETsubver= PERL_SUBVERSION' | gcc -E - | sed -n '/^SET/{s///;s/ //gp;}')
+SETsubver= PERL_SUBVERSION' | gcc -E -DPERL_PATCHLEVEL_H_IMPLICIT - \
+| sed -n '/^SET/{s///;s/ //gp;}')
 
 fullver="$ver.$subver"
 nextver="$ver."$(($subver+1))