* tony Hamilton <shaky.st...@ntlworld.com> [07-24-23 08:46]: > > > On 23/07/2023 17:07, Patrick Shanahan wrote: > > * tony Hamilton <shaky.st...@ntlworld.com> [07-23-23 10:40]: > > > > > > On 23/07/2023 14:28, Patrick Shanahan wrote: > > > > * tony Hamilton <shaky.st...@ntlworld.com> [07-23-23 09:24]: > > > > > I'm trying to compile dt release 4.4.2, using the same process that > > > > > worked > > > > > for me with 4.4.1 a short time ago. I get this error: > > > > > > > > > > "-- The CXX compiler identification is unknown > > > > > CMake Error at CMakeLists.txt:23 (project): > > > > > The CMAKE_CXX_COMPILER: > > > > > > > > > > /usr/bin/c++ > > > > > > > > > > is not a full path to an existing compiler tool. ...
> Thanks for this further explanation. I notice that a number of people - > mostly a lot smarter than me at compiling dt - have stumbled across the > problem of the build process failing with a complaint that the version of > the GNU compiler that it finds (typically 11.xx) is too old: version 12.xx > is required. This problem foxed me for a while because Synaptic tells me > that I do have version 12 installed. The only way I found around it was to > delete the directory named 'build' before running the build.sh script. > Apparently this avoids the build process from being mislead by some setting > in a cmake cache somewhere - but since I don't know where that is, I just > delete the 'build' directory completely. I am definitely not any kind of expert, just experienced somewhat. the *first* correction I do if a build fails is to "rm -rf" the build directory. the second is to completely remove all of the dt git structure and clone it again. > Working in this mode of unbounded ignorance is not very satisfying, so I > would be grateful if you can direct me to the source of your understanding > about cmake expecting /usr/bin/c++ to be an alias of /usr/bin/g++. you told me :) "/usr/bin/c++ is not a full path ..." then I looked on my system, ls -la /usr/bin/c++ lrwxrwxrwx 1 root root 6 Jun 14 11:13 /usr/bin/c++ -> g++-13* > That way I can understand better the reason for this common compile > failure. the directions in dt's github repository are quite good. good sailing ... -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet oftc ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
