[rt.cpan.org #112021] libmath-mpfr-perl: FTBFS on most architectures

[Niko Tyni]

On Tue, Feb 16, 2016 at 08:25:56AM +0100, gregor herrmann wrote:
> On Mon, 15 Feb 2016 21:01:47 -0500, Sisyphus via RT wrote:
> > <URL: https://rt.cpan.org/Ticket/Display.html?id=112021 >

> > Looking at https://buildd.debian.org/status/fetch.php?pkg=libmath-mpfr-perl&arch=arm64&ver=3.31-1&stamp=1455556770
> > it seems you guys have machines with 128-bit (113-bit precision)
> > long doubles. Is that right ?

I think most of the architectures have those, but we're not configuring
perl with -Duselongdouble anywhere.

> > Where can I find the 'perl -V' output of these perls ?

 https://buildd.debian.org/status/package.php?p=perl&suite=unstable

has the build logs, and we run 'perl -V' as part of the build.
Look for 'Summary of my perl5' in the logs.

For arm64:

Summary of my perl5 (revision 5 version 22 subversion 1) configuration:
   
  Platform:
    osname=linux, osvers=3.16.0, archname=aarch64-linux-gnu-thread-multi
    uname='linux localhost 3.16.0 #1 smp debian 3.16.0 aarch64 gnulinux '
    config_args='-Dusethreads -Duselargefiles -Dcc=aarch64-linux-gnu-gcc -Dcpp=aarch64-linux-gnu-cpp -Dld=aarch64-linux-gnu-gcc -Dccflags=-DDEBIAN -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Dldflags= -Wl,-z,relro -Dlddlflags=-shared -Wl,-z,relro -Dcccdlflags=-fPIC -Darchname=aarch64-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.22 -Darchlib=/usr/lib/aarch64-linux-gnu/perl/5.22 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/aarch64-linux-gnu/perl5/5.22 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.22.1 -Dsitearch=/usr/local/lib/aarch64-linux-gnu/perl/5.22.1 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Duse64bitint -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm -Ui_libutil -Uversiononly -DDEBUGGING=-g -Doptimize=-O2 -dEs -Uuseshrplib -Dotherlibdirs=/usr/lib/aarch64-linux-gnu/perl-base'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='aarch64-linux-gnu-gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -g',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='5.3.1 20160205', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678, doublekind=3
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16, longdblkind=1
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='aarch64-linux-gnu-gcc', ldflags =' -Wl,-z,relro -fstack-protector-strong -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib/gcc/aarch64-linux-gnu/5/include-fixed /usr/include/aarch64-linux-gnu /usr/lib /lib/aarch64-linux-gnu /lib/../lib /usr/lib/aarch64-linux-gnu /usr/lib/../lib /lib
    libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
    perllibs=-ldl -lm -lpthread -lc -lcrypt
    libc=libc-2.21.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.21'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -Wl,-z,relro -L/usr/local/lib -fstack-protector-strong'


Characteristics of this binary (from libperl): 
  Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV
                        USE_64_BIT_ALL USE_64_BIT_INT USE_ITHREADS
                        USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE
                        USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_LOCALE_TIME
                        USE_PERLIO USE_PERL_ATOF USE_REENTRANT_API
[...]

Hope this helps,
-- 
Niko Tyni   ntyni at debian.org