[llvm-dev] Linking against LLVM and conflicting with system mesa
Zion Nimchuk via llvm-dev
llvm-dev at lists.llvm.org
Fri Jun 23 20:32:57 PDT 2017
I'm stumped. I'm a contributor to an Open Source PS3 emulator. We use
LLVM to pre-compile the code, instead of just interpreting it at runtime
like most emulators do. Website here: https://github.com/RPCS3/rpcs3/
We currently have support for Windows, Linux and BSD. Currently, we only
provide builds for Windows users, and are interested in providing builds
for linux users via AppImages.
The problem is that we use OpenGL or Vulkan to render the graphics, and
if the driver is using Mesa, Mesa tries to bring along LLVM, and then we
get a nasty "CommandLine Error: Option 'help-list' registered more than
We previously just linked LLVM statically, and to remedy the error
mentioned above, we just switched to linking LLVM dynamically.
This starts getting messy when we start sending out binaries. Most
distros ares still stuck on LLVM 3.x, and we're using LLVM 4. If we just
package the LLVM 4 libs with the binary, then mesa tries to load 3.x and
llvm tries to load 4.x. Not good.
The only solution we've come up with is to provide a modified version of
LLVM with the binary build that somehow hides itself. Can anyone show me
what code I would need to modify in order to make this work?
If you do have a better solution, please mention it.
Thanks, Zion Nimchuk
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