On my Ubuntu 18.04 machine, compiling the current version of gptoolbox returns
$ cmake ..
-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is GNU 7.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test COMPILER_SUPPORTS_MARCH_NATIVE
-- Performing Test COMPILER_SUPPORTS_MARCH_NATIVE - Success
-- Found Matlab: /usr/local/MATLAB/R2019b/extern/include (found version "9.7") found components: MEX_COMPILER MX_LIBRARY ENG_LIBRARY
[ 11%] Creating directories for 'libigl-populate'
[ 22%] Performing download step (git clone) for 'libigl-populate'
Cloning into 'libigl-src'...
fatal: reference is not a tree: fe7e8281a4d92d422d8e516e155c3dd7cd26ab19
CMake Error at libigl-subbuild/libigl-populate-prefix/tmp/libigl-populate-gitclone.cmake:49 (message):
Failed to checkout tag: 'fe7e8281a4d92d422d8e516e155c3dd7cd26ab19'
CMakeFiles/libigl-populate.dir/build.make:101: recipe for target 'libigl-populate-prefix/src/libigl-populate-stamp/libigl-populate-download' failed
make[2]: *** [libigl-populate-prefix/src/libigl-populate-stamp/libigl-populate-download] Error 1
CMakeFiles/Makefile2:82: recipe for target 'CMakeFiles/libigl-populate.dir/all' failed
make[1]: *** [CMakeFiles/libigl-populate.dir/all] Error 2
Makefile:90: recipe for target 'all' failed
make: *** [all] Error 2
CMake Error at /usr/share/cmake-3.23/Modules/FetchContent.cmake:1088 (message):
Build step for libigl failed: 2
Call Stack (most recent call first):
/usr/share/cmake-3.23/Modules/FetchContent.cmake:1217:EVAL:2 (__FetchContent_directPopulate)
/usr/share/cmake-3.23/Modules/FetchContent.cmake:1217 (cmake_language)
/usr/share/cmake-3.23/Modules/FetchContent.cmake:1260 (FetchContent_Populate)
cmake/libigl.cmake:11 (FetchContent_MakeAvailable)
CMakeLists.txt:77 (include)
-- Configuring incomplete, errors occurred!
Apparently, this is because the libigl version mex/cmake/libigl.cmake is pointing at is not part of any libigl branch. A hot fix that allows all Mex files to compile on my machine is to change it to the Jan 24 version of the libigl main branch, as in this change.
On my Ubuntu 18.04 machine, compiling the current version of gptoolbox returns
Apparently, this is because the libigl version
mex/cmake/libigl.cmakeis pointing at is not part of any libigl branch. A hot fix that allows all Mex files to compile on my machine is to change it to the Jan 24 version of the libigl main branch, as in this change.