consolidate buildfile

Author: scivision

+stdlib/create_symlink.m

@@ -31,7 +31,7 @@
     % see example/Filesystem.java for this working in plain Java.
     % see example/javaCreateSymbolicLink.m for a non-working attempt in Matlab.
 
-    disp("use 'buildtool mex' or 'legacy_mex_build()' for faster symlink creation")
+    disp("'buildtool mex' for faster symlink creation")
 
     if ispc
       cmd = "pwsh -c " + '"' + "New-Item -ItemType SymbolicLink -Path " + link + ...

buildfile.m

@@ -108,3 +108,41 @@ function publishTask(context)
 end
 
 end
+
+
+function [compiler_id, compiler_opt] = get_compiler_options()
+
+cxx = mex.getCompilerConfigurations('c++');
+flags = cxx.Details.CompilerFlags;
+
+msvc = startsWith(cxx.ShortName, "MSVCPP");
+
+std = "-std=c++17";
+compiler_id = "";
+% FIXME: Windows oneAPI
+if msvc
+  std = "/std:c++17";
+elseif ismac
+  % keep for if-logic
+elseif isunix && cxx.ShortName == "g++"
+  % FIXME: update when desired GCC != 10 for newer Matlab
+  if isMATLABReleaseOlderThan("R2025b") && ~startsWith(cxx.Version, "10")
+    % https://www.mathworks.com/help/matlab/matlab_external/choose-c-or-c-compilers.html
+    % https://www.mathworks.com/help/matlab/matlab_external/change-default-gcc-compiler-on-linux-system.html
+    [s, ~] = system("which g++-10");
+    if s == 0
+      compiler_id = "CXX=g++-10";
+    else
+      warning("GCC 10 not found, using default GCC " + cxx.Version + " may fail on runtime")
+    end
+  end
+end
+
+opt = flags + " " + std;
+if msvc
+  compiler_opt = "COMPFLAGS=" + opt;
+else
+  compiler_opt = "CXXFLAGS=" + opt;
+end
+
+end