Topic: What is LTO?

Atanase Topic Opener Joined: 2021-04-15, 12:33 Posts: 126 At home in WL-forums Location: Béarn (France)	Posted at: 2021-04-22, 23:41 Hello, My first compilation was : ./compile.sh -r -w I tried to update by : ./update.sh -r -w Result : lto1: fatal error: bytecode stream in file ‘CMakeFiles/test_io_filesystem.dir/filesystem_test_main.cc.o’ generated with LTO version 9.2 instead of the expected 9.3 As my system was updated this afternoon, maybe is it "normal". Do you think that if I remove the build directory and re compile it will work? La connaissance ne vaut que si elle est partagée par le plus grand nombre. --------------------------------------- Knowledge is only valuable if it is shared by the greatest number. Top Quote

Atanase Topic Opener Joined: 2021-04-15, 12:33 Posts: 126 At home in WL-forums Location: Béarn (France)	Posted at: 2021-04-23, 08:33 Hello, Ok, I did it. I removed the build directory and did a new compilation. I think this happened because of the update of my system. Now I'll know, if after an update of my system I have some problem, no need to procrastinate, I have just to remove build and redo all. La connaissance ne vaut que si elle est partagée par le plus grand nombre. --------------------------------------- Knowledge is only valuable if it is shared by the greatest number. Top Quote

kaputtnik Joined: 2013-02-18, 19:48 Posts: 2439 OS: Archlinux Version: current master One Elder of Players Location: Germany	Posted at: 2021-04-23, 08:54 Yep Same thing can happen when ICU or Boost get updated by the system. Cleaning the build directory is also needed if you want to compile without ASAN enabled (the `-a`-switch) and prior ASAN was enabled. You might have noticed that ASAN mentioned some memory lost after quitting the game. This is a bug in SDL and not a bug of widelands. When running `./update.sh` you don't need to specify options. This script is build when running `./compile.sh` and remembers the options provided to `./compiles.sh`. Fight simulator for Widelands: https://wide-fighter.netlify.app/ Top Quote

Atanase Topic Opener Joined: 2021-04-15, 12:33 Posts: 126 At home in WL-forums Location: Béarn (France)	Posted at: 2021-04-23, 15:44 Thank you, kaputtnik, It reminds me of the days when Unix started, when it crashed we started compilations again. I had to recompile at least once a week for 6 months, and at the time we had no tools, we made the Makefile by hand with 'vi' not even enhanced. I'm not going to play veterans, but I look back on those days with some nostalgia. La connaissance ne vaut que si elle est partagée par le plus grand nombre. --------------------------------------- Knowledge is only valuable if it is shared by the greatest number. Top Quote