Emulation/AppImageKit-checkrt
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/AppImageKit-checkrt.git synced 2024-06-02 19:37:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

Create README.md

Browse source
This commit is contained in:
darealshinji 2017-05-04 13:12:49 +02:00 committed by GitHub
parent 487adc410b
commit 2ed619f690
1 changed files with 19 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
README.md Normal file
View file

@ -0,0 +1,19 @@
# The problem
Some projects require newer C++ standards to build them. To keep the glibc dependency low you can
build a newer GCC version on an older distro and use it to compile the project.
This project however will now require a newer version of the `libstdc++.so.6` library than available on that distro.
Bundling `libstdc++.so.6` however will in most cases break compatibility with distros that have a newer library
version installed into their system than the bundled one. So blindly bundling the library is not reliable.
By the way, while this is primarily an issue with `libstdc++.so.6` in some rare cases this might also occur with `libgcc_s.so.1`.
That's because both libraries are part of GCC.
# The solution
You would have to know the library version of the host system and decide whether to use a bundled library or not before the
application is started. This is exactly what the patched AppRun binary does.
It will search for `usr/optional/libstdc++/libstdc++.so.6` and `usr/optional/libgcc_s/libgcc_s.so.1` inside the AppImage or AppDir.
If found it will compare their internal versions with the ones found on the system and prepend their paths to `LD_LIBRARY_PATH`
if necessary.