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ck-version-info revision 1.1.1.4 
      1 #!/usr/bin/env perl
      2 
      3 # Note: this script must not be used to build MPFR due to the
      4 # dependency on perl, but this is OK for "make dist".
      5 
      6 # Copyright 2010-2020 Free Software Foundation, Inc.
      7 # This script is free software; the Free Software Foundation
      8 # gives unlimited permission to copy and/or distribute it,
      9 # with or without modifications, as long as this notice is preserved.
     10 
     11 # This program is distributed in the hope that it will be useful,
     12 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
     13 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
     14 # PARTICULAR PURPOSE.
     15 
     16 use strict;
     17 use Cwd;
     18 
     19 if (! -d 'src')
     20   {
     21     getcwd() =~ m,/tools$,
     22       or die "Execute $0 from the MPFR source directory\n";
     23     chdir '..' or die "$!\n$0: can't change cwd\n";
     24   }
     25 
     26 open VERSION, '<', 'VERSION'
     27   or die "$!\n$0: can't open VERSION file\n";
     28 my $version = do { local $/; <VERSION> };
     29 close VERSION or die "$!\n$0: can't close VERSION file\n";
     30 
     31 my ($mv,$pl,$suf) = $version =~ /^(\d+\.\d+)\.(\d+)(-\S+)?/
     32   or die "$0: bad VERSION format\n";
     33 
     34 open MF, '<', 'src/Makefile.am'
     35   or die "$!\n$0: can't open Makefile.am file\n";
     36 my $cur = 0;
     37 my $age = -1;
     38 my $vinfo;  # expected -version-info value
     39 while (<MF>)
     40   {
     41     last if $cur && ! /^\s*(#.*)$/;
     42     /^#\s+(\d+\.\d+)\.x\s+(\d+):x:(\d+)/ or next;
     43     $2 == ++$cur or die "$0: bad CURRENT ($2)";
     44     $3 == 0 || $3 == $age + 1 or die "$0: bad AGE ($3)";
     45     $age = $3;
     46     $mv eq $1 and $vinfo = "$cur:$pl:$age";
     47   }
     48 /^libmpfr_la_LDFLAGS\s+=.*\s-version-info\s+(\d+:\d+:\d+)\s/
     49   or die "$0: missing correct libmpfr_la_LDFLAGS line";
     50 close MF or die "$!\n$0: can't close Makefile.am file\n";
     51 
     52 if (defined $vinfo)
     53   {
     54     # Check that the -version-info value in the libmpfr_la_LDFLAGS line
     55     # corresponds to the expected value from the comment ($vinfo).
     56     $vinfo eq $1
     57       or die "$0: bad -version-info value ($1 instead of $vinfo)\n";
     58   }
     59 else
     60   {
     61     # If this is a release or a release candidate, make sure that $vinfo
     62     # is defined. For intermediate versions, this value may not be known
     63     # yet (for instance, the ABI may be broken some time later), so that
     64     # defining $vinfo is not required.
     65     $suf =~ /^(-rc.*)?$/
     66       and die "$0: missing comment with -version-info value for MPFR $mv.x";
     67   }
     68 
     69 open CONFIGURE, '<', 'configure.ac'
     70   or die "$!\n$0: can't open configure.ac file\n";
     71 my $dllversion = $cur - $age;
     72 my $dllvinconf;
     73 while (<CONFIGURE>)
     74   {
     75     /^\s*LIBMPFR_LDFLAGS\s*=.*-Wl,--output-def,\.libs\/libmpfr-(\d+)\.dll\.def/
     76       and $dllvinconf = $1, last;
     77   }
     78 close CONFIGURE or die "$!\n$0: can't close configure.ac file\n";
     79 defined $dllvinconf or die "$0: missing correct LIBMPFR_LDFLAGS line\n";
     80 $suf eq '-dev' || $dllversion eq $dllvinconf
     81   or die "$0: bad libmpfr.dll-version value (libmpfr-$dllvinconf.dll.def".
     82   " instead of libmpfr-$dllversion.dll.def)\n";
     83