Generic mexopts file for GCC/Clang OSX/Linux [R2014b] - matlab

Question

It is a recurrent pain in the ice to set up this blurry mexopts.sh... I would just like a generic configuration that works with all combinations of:
Ubuntu 14+ and OSX 10.10+;
gcc 4.8+ and clang 3.5+
I don't want any dependence to Xcode for the OSX part, I don't mind editing that file manually to change version numbers occasionally, and I don't care about warnings regarding the GCC version.
Here is my chaotic mess so far, hopefully with a little help we can finally get something decent:
#
# mexopts.sh Shell script for configuring MEX-file creation script,
# mex. These options were tested with the specified compiler.
#
# usage: Do not call this file directly; it is sourced by the
# mex shell script. Modify only if you don't like the
# defaults after running mex. No spaces are allowed
# around the '=' in the variable assignment.
#
# Note: For the version of system compiler supported with this release,
# refer to the Supported and Compatible Compiler List at:
# http://www.mathworks.com/support/compilers/current_release/
#
#
# SELECTION_TAGs occur in template option files and are used by MATLAB
# tools, such as mex and mbuild, to determine the purpose of the contents
# of an option file. These tags are only interpreted when preceded by '#'
# and followed by ':'.
#
#SELECTION_TAG_MEX_OPT: Template Options file for building MEX-files
#
# Copyright 1984-2011 The MathWorks, Inc.
# $Revision: 1.78.4.18 $ $Date: 2012/11/15 06:22:54 $
#----------------------------------------------------------------------------
#
TMW_ROOT="$MATLAB"
MFLAGS=''
if [ "$ENTRYPOINT" = "mexLibrary" ]; then
MLIBS="-L$TMW_ROOT/bin/$Arch -lmx -lmex -lmat -lmwservices -lut"
else
MLIBS="-L$TMW_ROOT/bin/$Arch -lmx -lmex -lmat"
fi
case "$Arch" in
Undetermined)
#----------------------------------------------------------------------------
# Change this line if you need to specify the location of the MATLAB
# root directory. The script needs to know where to find utility
# routines so that it can determine the architecture; therefore, this
# assignment needs to be done while the architecture is still
# undetermined.
#----------------------------------------------------------------------------
MATLAB="$MATLAB"
;;
glnx86)
#----------------------------------------------------------------------------
echo "Error: Did not imbed 'options.sh' code"; exit 1 #imbed options.sh glnx86 12
#----------------------------------------------------------------------------
;;
glnxa64_gcc|glnxa64)
#----------------------------------------------------------------------------
RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch"
#
CC='gcc'
CFLAGS='-ansi -D_GNU_SOURCE'
CFLAGS="$CFLAGS -fexceptions"
CFLAGS="$CFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CLIBS="$RPATH $MLIBS -lm"
COPTIMFLAGS='-O2 -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='g++'
CXXFLAGS='-ansi -D_GNU_SOURCE -std=c++0x'
CXXFLAGS="$CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CXXLIBS="$RPATH $MLIBS -lm"
CXXOPTIMFLAGS='-O2 -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
FC='gfortran'
FFLAGS='-fexceptions -fbackslash'
FFLAGS="$FFLAGS -fPIC -fno-omit-frame-pointer"
FLIBS="$RPATH $MLIBS -lm"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$COMPILER"
LDEXTENSION='.mexa64'
LDFLAGS="-pthread -shared -Wl,--version-script,$TMW_ROOT/extern/lib/$Arch/$MAPFILE -Wl,--no-undefined"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
#
POSTLINK_CMDS=':'
#----------------------------------------------------------------------------
;;
glnxa64_clang)
#----------------------------------------------------------------------------
RPATH="-Wl,-rpath-link,$TMW_ROOT/bin/$Arch"
#
CC='clang'
CFLAGS="-fno-common -fexceptions -fPIC -fno-omit-frame-pointer -pthread"
CLIBS="$MLIBS -lstdc++"
COPTIMFLAGS='-O2 -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='clang++'
CXXFLAGS="-fno-common -fexceptions -fPIC -fno-omit-frame-pointer -pthread"
CXXLIBS="$RPATH $MLIBS -lstdc++"
CXXOPTIMFLAGS='-O2 -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
FC='gfortran'
FFLAGS='-fexceptions -fbackslash'
FFLAGS="$FFLAGS -fPIC -fno-omit-frame-pointer"
FLIBS="$RPATH $MLIBS -lm"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$COMPILER"
LDEXTENSION='.mexa64'
LDFLAGS="-pthread -shared -Wl,--version-script,$TMW_ROOT/extern/lib/$Arch/$MAPFILE -Wl,--no-undefined"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
POSTLINK_CMDS=':'
#----------------------------------------------------------------------------
;;
sol64|mac|maci)
#----------------------------------------------------------------------------
echo "Error: Did not imbed 'options.sh' code"; exit 1 #imbed options.sh sol64 12
#----------------------------------------------------------------------------
;;
maci64_clang|maci64)
#
SDKROOT=""
MACOSX_DEPLOYMENT_TARGET='10.10'
ARCHS='x86_64'
MAC_FLAGS="-arch $ARCHS -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET"
#
CC='clang'
CFLAGS="-fno-common $MAC_FLAGS"
CFLAGS="$CFLAGS -fexceptions"
CLIBS="$MLIBS -lstdc++"
COPTIMFLAGS='-O2 -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='clang++'
CXXFLAGS="-fno-common -fexceptions $MAC_FLAGS"
CXXLIBS="$MLIBS -lstdc++"
CXXOPTIMFLAGS='-O2 -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
FC='gfortran'
FFLAGS='-fexceptions -m64 -fbackslash'
FC_LIBDIR=`$FC -print-file-name=libgfortran.dylib 2>&1 | sed -n '1s/\/*libgfortran\.dylib//p'`
FC_LIBDIR2=`$FC -print-file-name=libgfortranbegin.a 2>&1 | sed -n '1s/\/*libgfortranbegin\.a//p'`
FLIBS="$MLIBS -L$FC_LIBDIR -lgfortran -L$FC_LIBDIR2 -lgfortranbegin"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$CC"
LDEXTENSION='.mexmaci64'
LDFLAGS="-arch $ARCHS -Wl -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET"
LDFLAGS="$LDFLAGS -bundle -Wl,-exported_symbols_list,$TMW_ROOT/extern/lib/$Arch/$MAPFILE"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
#
POSTLINK_CMDS=':'
#----------------------------------------------------------------------------
;;
maci64_gcc) # doesn't work
#
SDKROOT=""
MACOSX_DEPLOYMENT_TARGET='10.10'
ARCHS='x86_64'
MAC_FLAGS="-arch $ARCHS -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET"
RPATH="-Wl,$TMW_ROOT/bin/$Arch"
#
CC='gcc'
CFLAGS='-ansi -D_GNU_SOURCE'
CFLAGS="$CFLAGS -fexceptions $MAC_FLAGS"
CFLAGS="$CFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CLIBS="$RPATH $MLIBS -lm"
COPTIMFLAGS='-O2 -DNDEBUG'
CDEBUGFLAGS='-g'
#
CXX='g++'
CXXFLAGS="-ansi -D_GNU_SOURCE $MAC_FLAGS"
CXXFLAGS="$CXXFLAGS -fPIC -fno-omit-frame-pointer -pthread"
CXXLIBS="$RPATH $MLIBS -lm"
CXXOPTIMFLAGS='-O2 -DNDEBUG'
CXXDEBUGFLAGS='-g'
#
FC='gfortran'
FFLAGS='-fexceptions -fbackslash'
FFLAGS="$FFLAGS -fPIC -fno-omit-frame-pointer"
FLIBS="$RPATH $MLIBS -lm"
FOPTIMFLAGS='-O'
FDEBUGFLAGS='-g'
#
LD="$CC"
LDEXTENSION='.mexmaci64'
LDFLAGS="$MAC_FLAGS -bundle -Wl,$TMW_ROOT/extern/lib/$Arch/$MAPFILE"
LDOPTIMFLAGS='-O'
LDDEBUGFLAGS='-g'
#
POSTLINK_CMDS=':'
#----------------------------------------------------------------------------
;;
esac
#############################################################################
#
# Architecture independent lines:
#
# Set and uncomment any lines which will apply to all architectures.
#
#----------------------------------------------------------------------------
# CC="$CC"
# CFLAGS="$CFLAGS"
# COPTIMFLAGS="$COPTIMFLAGS"
# CDEBUGFLAGS="$CDEBUGFLAGS"
# CLIBS="$CLIBS"
#
# FC="$FC"
# FFLAGS="$FFLAGS"
# FOPTIMFLAGS="$FOPTIMFLAGS"
# FDEBUGFLAGS="$FDEBUGFLAGS"
# FLIBS="$FLIBS"
#
# LD="$LD"
# LDFLAGS="$LDFLAGS"
# LDOPTIMFLAGS="$LDOPTIMFLAGS"
# LDDEBUGFLAGS="$LDDEBUGFLAGS"
#----------------------------------------------------------------------------
#############################################################################
You can see that I'm trying to get a different section for each combination arch_compiler. I can then manually select the compiler I want simply by ORing the case choice with the target architecture.