[Pkg-openmpi-maintainers] Bug#796985: libopenmpi-dev: invalid suffix on literal; C++11 requires a space between literal and string macro

[Nico Schlömer]

Package: libopenmpi-dev
Version: 1.6.5-9.2
Severity: normal
Tags: patch

When using Open MPI 1.6 with `-std=c++11`, one gets flooded with warnings of
the kind
```
/usr/lib/openmpi/include/mpi_portable_platform.h:374:63: warning: invalid
suffix on literal; C++11 requires a space between literal and string macro
[-Wliteral-suffix]
_STRINGIFY(__GNUC__)"."_STRINGIFY(__GNUC_MINOR__)"."_STRINGIFY(__GNUC_PATCHLEVEL__)
```
The bug is already fixed upstream [1]. Since the transition to at least Open
MPI 1.8 will take a while in Debian, I suggest to include the attached patch.
It's virtually identical with the upstream patch [2].

[1] https://www.open-mpi.org/community/lists/users/2013/11/22914.php
[2] https://www.open-mpi.org/community/lists/users/att-22914/cxx11.patch



-- System Information:
Debian Release: jessie/sid
  APT prefers vivid-updates
  APT policy: (500, 'vivid-updates'), (500, 'vivid-security'), (500, 'vivid'), (100, 'vivid-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.19.0-21-generic (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libopenmpi-dev depends on:
ii  libc6           2.21-0ubuntu4
ii  libhwloc-dev    1.10.0-3
ii  libibverbs-dev  1.1.8-1ubuntu1
ii  libopenmpi1.6   1.6.5-9.2
ii  openmpi-common  1.6.5-9.2

libopenmpi-dev recommends no packages.

libopenmpi-dev suggests no packages.

-- no debconf information
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