Hi, On 2018-04-23 04:33:04 -0400, Heikki Linnakangas wrote: > So, I have LLVM 3.9 installed, but no clang 3.9. Only clang 3.8.
Any specific reason, or just happenstance? > Googling around, the LLVM bitcode format is supposed to be compatible across > versions, but I'm not sure I trust that. Perhaps we should check that the > LLVM and clang versions match? Instead of searching for any 'clang' program > with PGAC_PATH_PROGS, perhaps we should always use "`lvm-config-3.9 > --bindir`/clang", throwing an error if it doesn't exist. That'll commonly not exist I think. I kinda think we should just wait a bit till we've collected more experience.. > BTW, I'm surprised that llvm-lto is invoked in the "make install" stage. I > would expect it to be done by plain "make" already, and "make install" would > just copy the files to the right places. If you can come up with decent make foo, I'm open to changing that, but I couldn't come up with something neatly encapsulated... It's just an index over the individual files, so it didn't seem that crazy. Greetings, Andres Freund