Bug 1271245 - C++11 requirement not in pkg-config file
C++11 requirement not in pkg-config file
Product: Fedora
Classification: Fedora
Component: glibmm24 (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Kalev Lember
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-10-13 09:19 EDT by Tim Niemueller
Modified: 2017-08-08 08:18 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2017-08-08 08:18:17 EDT
Type: Bug
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External Trackers
Tracker ID Priority Status Summary Last Updated
GNOME Desktop 756504 None None None Never

  None (edit)
Description Tim Niemueller 2015-10-13 09:19:02 EDT
Description of problem:
The recent version introduces C++11 elements. Since this is not yet the default for GCC, the appropriate flag must be added explicitly. This also affects when using glibmm indirectly, e.g. through libxml++.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Create test program that simply includes e.h. glibmm/ustring.h.
2. Build with gcc [...] $(pkg-config --cflags glibmm24)

Actual results:
Build fails, e.g. due to the use of the noexcept keyword without adding the appropriate language standard.

Expected results:
pkg-config --cflags glibmm24 should then include the "-std=c++11" flag, as this is a mandatory requirement for the library.

Additional info:
The problem can simply be fixed by adding -std=c++11 to the compile flags in the pkg-config file. It seems the proper thing to do since it is a mandatory requirement.
Comment 1 Kalev Lember 2015-10-13 09:24:25 EDT
Can you file it upstream for discussion, please? https://bugzilla.gnome.org/enter_bug.cgi?product=glibmm

My personal take is that forcing -std=c++11 in the .pc file could cause problems in apps that want a different C++ dialect, such as c++14 or gnu++11, and it's better to leave it to apps to decide which one they want.
Comment 2 Tim Niemueller 2015-10-13 09:42:17 EDT
Filed at https://bugzilla.gnome.org/show_bug.cgi?id=756504. Referenced as external tracker.

It might be a nice addition to ship this short-term as a Fedora patch.
Comment 3 Jan Kurik 2016-02-24 08:50:07 EST
This bug appears to have been reported against 'rawhide' during the Fedora 24 development cycle.
Changing version to '24'.

More information and reason for this action is here:
Comment 4 Fedora End Of Life 2017-07-25 15:21:49 EDT
This message is a reminder that Fedora 24 is nearing its end of life.
Approximately 2 (two) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 24. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '24'.

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Comment 5 Fedora End Of Life 2017-08-08 08:18:17 EDT
Fedora 24 changed to end-of-life (EOL) status on 2017-08-08. Fedora 24 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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