After making some minor code adjustments, I get the message below. It's too arcane for me to follow but I suspect that I need to invoke a different library rather than -static-libstdc++. I'm stumped at this point.
mfemm_setup()
mex -O -D_GLIBCXX_USE_CXX11_ABI=1 -I"../cfemm/fmesher" -I"../cfemm/fmesher/triangle" -I"../cfemm/libfemm" -I"../cfemm/libfemm/liblua" -DLINUX -DNDEBUG CXXOPTIMFLAGS="-O2 " GCC="$GCC" OPTIMFLAGS="-O2" CXXFLAGS="$CXXFLAGS -std=c++11 -fpermissive" LDFLAGS="$LDFLAGS -static-libstdc++ '-Wl,--no-undefined,-v'" /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/fmesher/fmesher.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/fmesher/nosebl.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/fmesher/triangle/triangle.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/fmesher/writepoly.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CAirGapElement.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CArcSegment.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CBlockLabel.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CBoundaryProp.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CCircuit.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CCommonPoint.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CElement.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CMaterialProp.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CMeshNode.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CNode.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CPointProp.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CSegment.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/CliTools.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/FemmProblem.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/FemmReader.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/FemmStateBase.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/IntPoint.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/LuaInstance.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/PostProcessor.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/cspars.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/cuthill.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/feasolver.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/femmconstants.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/femmenums.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/femmversion.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/fparse.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/fullmatrix.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/femmcomplex.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lapi.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lauxlib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lbaselib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lcode.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ldblib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ldebug.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ldo.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lfunc.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lgc.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/liolib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/llex.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lmathlib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lmem.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lobject.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lparser.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lstate.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lstring.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lstrlib.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ltable.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ltests.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/ltm.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lundump.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lvm.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/liblua/lzio.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/spars.o /Users/ehm7s/Documents/GitHub/xfemm/mfemm/../cfemm/libfemm/stringTools.o mexfmesher.cpp -output mexfmesher.mexmaca64
Building with 'Xcode Clang++'.
Error using mex
clang: warning: argument unused during compilation: '-static-libstdc++' [-Wunused-command-line-argument]
@(#)PROGRAM:ld PROJECT:ld64-857.1
BUILD 23:13:29 May 7 2023
configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em
Library search paths:
/Applications/MATLAB_R2022b_Beta.app/bin/maca64
/Applications/MATLAB_R2022b_Beta.app/extern/bin/maca64
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib
Framework search paths:
/Library/Frameworks/
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
ld: unknown option: --no-undefined
clang: error: linker command failed with exit code 1 (use -v to see invocation)
After making some minor code adjustments, I get the message below. It's too arcane for me to follow but I suspect that I need to invoke a different library rather than -static-libstdc++. I'm stumped at this point.