Hi
Would someone happen to know how to solve the problem when installing Concorde.jl in julia:
(@v1.11) pkg> add Concorde
Resolving package versions...
No Changes to ~/.julia/environments/v1.11/Project.toml
No Changes to ~/.julia/environments/v1.11/Manifest.toml
Precompiling project...
✗ Concorde
0 dependencies successfully precompiled in 2 seconds. 238 already precompiled.
1 dependency errored.
For a report of the errors see julia> err. To retry use pkg> precompile
(@v1.11) pkg> build Concorde
Building Concorde → ~/.julia/scratchspaces/44cfe95a-1eb2-52ea-b672-e2afdf69b78f/5d9f1b1a480235ffdd3c8ab8cab011aa9afe81af/build.log
ERROR: Error building Concorde, showing the last 100 of log:
x ./concorde/TOOLS/prob2tsp.c
x ./concorde/TOOLS/showres.c
...
x ./concorde/VERIFY/Makefile.in
x ./concorde/README
loading cache ./config.cache
checking host system type... Invalid configuration darwin': machine darwin' not recognized
checking for prespecified compiler options... no
checking for gcc... (cached) gcc
checking whether the C compiler (gcc -fPIC -O2 -g ) works... no
configure: error: installation or configuration problem: C compiler cannot create executables.
ERROR: LoadError: failed process: Process(bash -c "CFLAGS='-fPIC -O2 -g' ./configure --with-qsopt=/Users/poss/.julia/packages/Concorde/VRfqN/deps/qsopt --host=darwin", ProcessExited(1)) [1]
It seems to be related to the M3 processor as I have the same error on another Mac with that processor, while the M2 I tried on could install the package properly.
It is related to my C compiler, but the latter works, despite the error "checking whether the C compiler (gcc -fPIC -O2 -g ) works... no"
poss@Mac-de-Michael ~ % gcc --version Apple clang version 16.0.0 (clang-1600.0.26.6) Target: arm64-apple-darwin24.1.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin
poss@Mac-de-Michael ~ % gcc -fPIC -O2 -g test.c
Best,
Michaël.