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IDProjectCategoryView StatusDate SubmittedLast Update
0009893Dwarf FortressTechnical -- Generalpublic2016-07-07 09:452017-11-01 09:54
ReporterKhym Chanur 
Assigned Tolethosor 
PrioritynormalSeveritycrashReproducibilityalways
StatusacknowledgedResolutionopen 
PlatformAMD x86_64OSLinuxOS VersionFedora 24
Product Version0.43.05 
Target VersionFixed in Version 
Summary0009893: Linux: libs/libstdc++.so.6 causing linking problem
DescriptionTrying to run the newly 64 bit DF under Linux (Fedora 24), I get the following errors:

./libs/Dwarf_Fortress: /home/matt/temp/df_linux/libs/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /lib64/libGLU.so.1)
./libs/Dwarf_Fortress: /home/matt/temp/df_linux/libs/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /lib64/libGLU.so.1)

Additional InformationSimply removing libstdc++.so.6 from the libs directory fixes the problem, as the Dwarf_Fortress executable will link just fine against the system's standard libstdc++.so library
TagsNo tags attached.
Attached Files

- Relationships
related to 0009894resolvedlethosor Linux 64 bit: libs/libgcc_s.so.1 no longer needed 

-  Notes
(0035570)
ShimmerFairy (reporter)
2016-07-07 13:08

At first glance, I'd guess a problem involving the ABI changes in gcc 5.0, or maybe the changes in 6.0 (e.g. defaulting to gnu++14 instead of gnu++98), depending on what version your system libraries are compiled on and what DF's libstdc++ is for.
(0035571)
lethosor (manager)
2016-07-07 16:23

Toady's using GCC 4.8 on Linux. It looks like /lib64/libGLU.so.1 requires a libstdc++ from GCC 4.9 or 5.1, going by https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html. [^]

Removing the libstdc++ will break compatibility completely for people whose systems don't distribute GCC 4.8, so I don't know if there's much that can be done here.
(0035576)
Khym Chanur (reporter)
2016-07-07 21:29

Maybe the df script could check what version of libstdc++ is installed, and depending upon the version set or not set the environmental variable LD_LIBRARY_PATH to "."; of course, that would require removing the "Library rpath = [$ORIGIN]" trick from the executable.

For the record, my install is using version 6.1.1-3 of GCC and libstdc++, and the path of the system libstdc++ library is /lib64/libstdc++.so.6.0.22
(0035577)
ShimmerFairy (reporter)
2016-07-07 21:46
edited on: 2016-07-07 21:48

The weird thing is that I removed the provided libstdc++ as well, and I've been able to run it fine without problems. my libGLU.so.1 points to libGLU.so.1.3.1, which is provided by gentoo's media-libs/glu-9.0.0-r1. My currently active gcc is gcc-5.4.0, which was probably what I used to compile that.

Edit: I believe I also ran this without deleting the provided libstdc++ at first as well. (I definitely ran the 64-bit testing version without ever deleting the library.)

(0035579)
Khym Chanur (reporter)
2016-07-08 08:32

Oops, wait, Dwarf_Fortress still needs the libgraphics.so library which is in the same directory. So, to amend my suggestion, libstdc++.so.6 and libgcc_s.so.1 could be moved to the new directory libs/c_libs, and if the df script decides they're needed it would set LD_LIBRARY_PATH to "./c_libs".
(0035613)
Khym Chanur (reporter)
2016-07-12 18:05

Here's the start of a fix for the problem: http://pastebin.com/jX4Wf062 [^]

It will detect when the system libstdc++ can be linked or not. If it can't be, then it links against the bundled version which is put into libs/c_lib. It needs to be updated with all the versions of libstdc++ which can be linked against.
(0036398)
travm1 (reporter)
2017-04-06 21:32

Here is a primer on libstdc++: https://www.everipedia.com/Libstdc++/ [^]
(0036831)
thalamusinc (reporter)
2017-11-01 09:54

thanks travm1

http://www.thalamus.co [^]

- Issue History
Date Modified Username Field Change
2016-07-07 09:45 Khym Chanur New Issue
2016-07-07 13:08 ShimmerFairy Note Added: 0035570
2016-07-07 16:23 lethosor Note Added: 0035571
2016-07-07 16:23 lethosor Assigned To => lethosor
2016-07-07 16:23 lethosor Status new => acknowledged
2016-07-07 16:25 lethosor Relationship added related to 0009894
2016-07-07 21:29 Khym Chanur Note Added: 0035576
2016-07-07 21:46 ShimmerFairy Note Added: 0035577
2016-07-07 21:48 ShimmerFairy Note Edited: 0035577 View Revisions
2016-07-08 08:32 Khym Chanur Note Added: 0035579
2016-07-12 18:05 Khym Chanur Note Added: 0035613
2017-04-06 21:32 travm1 Note Added: 0036398
2017-11-01 09:54 thalamusinc Note Added: 0036831


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