Looking for sgemm_ - not found

#### Describe the bug

I can't complie. When I try to cmake, something wrong happens.

```

CMake Warning at CMakeLists.txt:69 (message):

  Matlab not found, disabling igl_restricted::matlab module.





CMake Warning at CMakeLists.txt:74 (message):

  Mosek not found, disabling igl_restricted::mosek module.





-- Creating target: igl::core (igl_core)

-- Third-party: creating target 'Eigen3::Eigen'

-- Looking for pthread.h

-- Looking for pthread.h - found

-- Performing Test CMAKE_HAVE_LIBC_PTHREAD

-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed

-- Looking for pthread_create in pthreads

-- Looking for pthread_create in pthreads - not found

-- Looking for pthread_create in pthread

-- Looking for pthread_create in pthread - found

-- Found Threads: TRUE  

-- Third-party: creating target 'Catch2::Catch2'

-- Third-party: creating target 'igl::tests_data'

-- Creating target: igl::embree (igl_embree)

-- Third-party: creating target 'embree::embree'

-- Found Git: /usr/bin/git (found version "2.25.1") 

-- Detecting default ISA...

-- Detected default ISA: SSE2

-- Creating target: igl::opengl (igl_opengl)

-- Third-party: creating target 'glad::glad'

-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so  found components: OpenGL 

-- Creating target: igl::glfw (igl_glfw)

-- Third-party: creating target 'glfw::glfw'

-- Using X11 for window creation

-- Found X11: /usr/include   

-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so

-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so - found

-- Looking for gethostbyname

-- Looking for gethostbyname - found

-- Looking for connect

-- Looking for connect - found

-- Looking for remove

-- Looking for remove - found

-- Looking for shmat

-- Looking for shmat - found

-- Looking for IceConnectionNumber in ICE

-- Looking for IceConnectionNumber in ICE - found

-- Creating target: igl::imgui (igl_imgui)

-- Third-party: creating target 'imgui::imgui'

-- Third-party: creating target 'imguizmo::imguizmo'

-- Third-party: creating target 'igl::imgui_fonts'

-- Creating target: igl::predicates (igl_predicates)

-- Third-party: creating target 'predicates::predicates'

-- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY

-- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY - Success

-- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY

-- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY - Success

-- Performing Test COMPILER_HAS_DEPRECATED_ATTR

-- Performing Test COMPILER_HAS_DEPRECATED_ATTR - Success

-- Creating target: igl::png (igl_png)

-- Third-party: creating target 'stb::stb'

-- Creating target: igl::spectra (igl_spectra)

-- Third-party: creating target 'spectra::spectra'

-- Could NOT find CLANG_FORMAT: Found unsuitable version "0.0", but required is at least "9" (found CLANG_FORMAT_EXECUTABLE-NOTFOUND)

-- The following OPTIONAL packages have been found:



 * Git



-- The following REQUIRED packages have been found:



 * OpenGL

 * Threads

 * X11



-- The following OPTIONAL packages have not been found:



 * Matlab

 * MOSEK

 * CLANG_FORMAT (required version >= 9)



-- Creating target: igl::xml (igl_xml)

-- Third-party: creating target 'tinyxml2::tinyxml2'

-- Creating target: igl_copyleft::core (igl_copyleft_core)

-- Creating target: igl_copyleft::cgal (igl_copyleft_cgal)

-- Third-party: creating target 'CGAL::CGAL'

-- Third-party: creating target 'gmp::gmp'

-- Third-party: creating target 'mpfr::mpfr'

-- Third-party: creating targets 'Boost::boost'...

-- Fetching Boost

-- Fetching Boost - done

-- Boost found: 1.71.0 /home/r/libigl/build/_deps/boost-src

-- Looking for __linux__

-- Looking for __linux__ - found

-- Looking for _WIN32

-- Looking for _WIN32 - not found

-- Looking for __APPLE__

-- Looking for __APPLE__ - not found

-- Looking for __ANDROID__

-- Looking for __ANDROID__ - not found

-- Looking for __FreeBSD__

-- Looking for __FreeBSD__ - not found

-- The ASM compiler identification is GNU

-- Found assembler: /usr/bin/cc

-- Found BZip2: /usr/lib/x86_64-linux-gnu/libbz2.so (found version "1.0.8") 

-- Looking for BZ2_bzCompressInit

-- Looking for BZ2_bzCompressInit - found

-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11") 

-- Found the following ICU libraries:

--   uc (required)

--   dt (required)

--   i18n (required)

-- Found ICU: /usr/include (found version "66.1") 

-- Looking for iconv

-- Looking for iconv - found

-- Using header-only CGAL

-- Boost include dirs: 

-- Boost libraries:    Boost::thread;Boost::system

-- Using gcc version 4 or later. Adding -frounding-math

-- Creating target: igl_copyleft::comiso (igl_copyleft_comiso)

-- Third-party: creating target 'CoMISo::CoMISo'

-- Looking for sgemm_

-- Looking for sgemm_ - not found

CMake Error at /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:146 (message):

  Could NOT find BLAS (missing: BLAS_LIBRARIES)

Call Stack (most recent call first):

  /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:393 (_FPHSA_FAILURE_MESSAGE)

  /usr/share/cmake-3.16/Modules/FindBLAS.cmake:810 (find_package_handle_standard_args)

  build/_deps/comiso-src/CMakeLists.txt:42 (find_package)



```



#### Platform

Ubuntu 20.04.4 LTS



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