linux needs -fPIC

Author: scivision

buildfile.m

@@ -3,7 +3,7 @@
 
 plan.DefaultTasks = "test";
 
-if ~isMATLABReleaseOlderThan("R2024a")
+if ~isMATLABReleaseOlderThan("R2024b")
   root = plan.RootFolder;
   bin = fullfile(root, "bin");
   if ~isfolder(bin), mkdir(bin), end
@@ -13,8 +13,10 @@
 
   if ispc
     compiler_opt = "COMPFLAGS=/EHsc /std:c++17";
-  else
+  elseif ismac
     compiler_opt = "CXXFLAGS=-std=c++17";
+  elseif isunix
+    compiler_opt = "CXXFLAGS=-fPIC -std=c++17";
   end
 
   plan("mex:is_char_device") = matlab.buildtool.tasks.MexTask("is_char_device.cpp", bin, ...