Merged the 64-bit only script back into the main script. Use the -6 option for 64-bit only

2 files changed, 73 insertions, 281 deletions

diff --git a/scripts/macosx-build-dependencies-64bit.sh b/scripts/macosx-build-dependencies-64bit.sh
deleted file mode 100755
index e40c5ab..0000000
--- a/scripts/macosx-build-dependencies-64bit.sh
+++ /dev/null
@@ -1,251 +0,0 @@
-#!/bin/sh -e
-#
-# This script builds all library dependencies of OpenSCAD for Mac OS X.
-# The libraries will be build in 64-bit mode and backwards compatible with 
-# 10.6
-# 
-# Usage:
-# - Edit the BASEDIR variable. This is where libraries will be built and installed
-# - Edit the OPENSCADDIR variable. This is where patches are fetched from
-#
-# Prerequisites:
-# - MacPorts: curl eigen
-# - Qt4
-#
-# FIXME:
-# o Verbose option
-# o Port to other platforms?
-#
-
-BASEDIR=$PWD/../libraries
-OPENSCADDIR=$PWD
-SRCDIR=$BASEDIR/src
-DEPLOYDIR=$BASEDIR/install
-MAC_OSX_VERSION_MIN=10.6
-
-# Hack warning: gmplib is built separately in 32-bit and 64-bit mode
-# and then merged afterwards. gmplib's header files are dependant on
-# the CPU architecture on which configure was run and will be patched accordingly.
-build_gmp()
-{
-  version=$1
-  echo "Building gmp" $version "..."
-  cd $BASEDIR/src
-  rm -rf gmp-$version
-  if [ ! -f gmp-$version.tar.bz2 ]; then
-    curl -O ftp://ftp.gmplib.org/pub/gmp-$version/gmp-$version.tar.bz2
-  fi
-  tar xjf gmp-$version.tar.bz2
-  cd gmp-$version
-  # 32-bit version
-  mkdir build-i386
-  cd build-i386
-  ../configure --prefix=$DEPLOYDIR/i386 "CFLAGS=-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" ABI=32 --enable-cxx
-  make install
-  cd ..
-  # 64-bit version
-  mkdir build-x86_64
-  cd build-x86_64
-  ../configure --prefix=$DEPLOYDIR/x86_64 "CFLAGS=-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" ABI=64 --enable-cxx
-  make install
-
-  # merge
-  cd $DEPLOYDIR
-  mkdir -p lib
-  lipo -create i386/lib/libgmp.dylib x86_64/lib/libgmp.dylib -output lib/libgmp.dylib
-  install_name_tool -id $DEPLOYDIR/lib/libgmp.dylib lib/libgmp.dylib
-  cp lib/libgmp.dylib i386/lib/
-  cp lib/libgmp.dylib x86_64/lib/
-  mkdir -p include
-  cp x86_64/include/gmp.h include/
-  cp x86_64/include/gmpxx.h include/
-
-  patch -p0 include/gmp.h << EOF
---- gmp.h.orig	2011-11-08 01:03:41.000000000 +0100
-+++ gmp.h	2011-11-08 01:06:21.000000000 +0100
-@@ -26,12 +26,28 @@
- #endif
- 
- 
--/* Instantiated by configure. */
--#if ! defined (__GMP_WITHIN_CONFIGURE)
-+#if defined(__i386__)
-+#define __GMP_HAVE_HOST_CPU_FAMILY_power   0
-+#define __GMP_HAVE_HOST_CPU_FAMILY_powerpc 0
-+#define GMP_LIMB_BITS                      32
-+#define GMP_NAIL_BITS                      0
-+#elif defined(__x86_64__)
- #define __GMP_HAVE_HOST_CPU_FAMILY_power   0
- #define __GMP_HAVE_HOST_CPU_FAMILY_powerpc 0
- #define GMP_LIMB_BITS                      64
- #define GMP_NAIL_BITS                      0
-+#elif defined(__ppc__)
-+#define __GMP_HAVE_HOST_CPU_FAMILY_power   0
-+#define __GMP_HAVE_HOST_CPU_FAMILY_powerpc 1
-+#define GMP_LIMB_BITS                      32
-+#define GMP_NAIL_BITS                      0
-+#elif defined(__powerpc64__)
-+#define __GMP_HAVE_HOST_CPU_FAMILY_power   0
-+#define __GMP_HAVE_HOST_CPU_FAMILY_powerpc 1
-+#define GMP_LIMB_BITS                      64
-+#define GMP_NAIL_BITS                      0
-+#else
-+#error Unsupported architecture
- #endif
- #define GMP_NUMB_BITS     (GMP_LIMB_BITS - GMP_NAIL_BITS)
- #define GMP_NUMB_MASK     ((~ __GMP_CAST (mp_limb_t, 0)) >> GMP_NAIL_BITS)
-EOF
-}
-
-# As with gmplib, mpfr is built separately in 32-bit and 64-bit mode and then merged
-# afterwards.
-build_mpfr()
-{
-  version=$1
-  echo "Building mpfr" $version "..."
-  cd $BASEDIR/src
-  rm -rf mpfr-$version
-  if [ ! -f mpfr-$version.tar.bz2 ]; then
-    curl -O http://www.mpfr.org/mpfr-current/mpfr-$version.tar.bz2
-  fi
-  tar xjf mpfr-$version.tar.bz2
-  cd mpfr-$version
-
-  # 32-bit version
-  mkdir build-i386
-  cd build-i386
-  ../configure --prefix=$DEPLOYDIR/i386 --with-gmp=$DEPLOYDIR/i386 CFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386"
-  make install
-  cd ..
-
-  # 64-bit version
-  mkdir build-x86_64
-  cd build-x86_64
-  ../configure --prefix=$DEPLOYDIR/x86_64 --with-gmp=$DEPLOYDIR/x86_64 CFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64"
-  make install
-
-  # merge
-  cd $DEPLOYDIR
-  lipo -create i386/lib/libmpfr.dylib x86_64/lib/libmpfr.dylib -output lib/libmpfr.dylib
-  install_name_tool -id $DEPLOYDIR/lib/libmpfr.dylib lib/libmpfr.dylib
-  mkdir -p include
-  cp x86_64/include/mpfr.h include/
-  cp x86_64/include/mpf2mpfr.h include/
-}
-
-
-build_boost()
-{
-  version=$1
-  bversion=`echo $version | tr "." "_"`
-  echo "Building boost" $version "..."
-  cd $BASEDIR/src
-  rm -rf boost_$bversion
-  if [ ! -f boost_$bversion.tar.bz2 ]; then
-    curl -LO http://downloads.sourceforge.net/project/boost/boost/$version/boost_$bversion.tar.bz2
-  fi
-  tar xjf boost_$bversion.tar.bz2
-  cd boost_$bversion
-  # We only need the thread and program_options libraries
-  ./bootstrap.sh --prefix=$DEPLOYDIR --with-libraries=thread,program_options,filesystem,system,regex
-  ./bjam cflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" linkflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64"
-  ./bjam install
-  install_name_tool -id $DEPLOYDIR/lib/libboost_thread.dylib $DEPLOYDIR/lib/libboost_thread.dylib 
-  install_name_tool -id $DEPLOYDIR/lib/libboost_program_options.dylib $DEPLOYDIR/lib/libboost_program_options.dylib 
-  install_name_tool -id $DEPLOYDIR/lib/libboost_filesystem.dylib $DEPLOYDIR/lib/libboost_filesystem.dylib 
-  install_name_tool -change libboost_system.dylib $DEPLOYDIR/lib/libboost_system.dylib $DEPLOYDIR/lib/libboost_filesystem.dylib 
-  install_name_tool -id $DEPLOYDIR/lib/libboost_system.dylib $DEPLOYDIR/lib/libboost_system.dylib 
-  install_name_tool -id $DEPLOYDIR/lib/libboost_regex.dylib $DEPLOYDIR/lib/libboost_regex.dylib 
-
-
-}
-
-build_cgal()
-{
-  version=$1
-  echo "Building CGAL" $version "..."
-  cd $BASEDIR/src
-  rm -rf CGAL-$version
-  if [ ! -f CGAL-$version.tar.gz ]; then
-    curl -O https://gforge.inria.fr/frs/download.php/29125/CGAL-$version.tar.gz
-    #  curl -O https://gforge.inria.fr/frs/download.php/28500/CGAL-$version.tar.gz
-    #  curl -O https://gforge.inria.fr/frs/download.php/27641/CGAL-$version.tar.gz
-  fi
-  tar xzf CGAL-$version.tar.gz
-  cd CGAL-$version
-  # We build a static lib. Not really necessary, but it's well tested.
-  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DGMP_INCLUDE_DIR=$DEPLOYDIR/include -DGMP_LIBRARIES=$DEPLOYDIR/lib/libgmp.dylib -DGMPXX_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_LIBRARIES=$DEPLOYDIR/lib/libmpfr.dylib -DWITH_CGAL_Qt3=OFF -DWITH_CGAL_Qt4=OFF -DWITH_CGAL_ImageIO=OFF -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="x86_64" -DBOOST_ROOT=$DEPLOYDIR
-  make -j4
-  make install
-}
-
-build_glew()
-{
-  version=$1
-  echo "Building GLEW" $version "..."
-  cd $BASEDIR/src
-  rm -rf glew-$version
-  if [ ! -f glew-$version.tgz ]; then
-    curl -LO http://downloads.sourceforge.net/project/glew/glew/$version/glew-$version.tgz
-  fi
-  tar xzf glew-$version.tgz
-  cd glew-$version
-  mkdir -p $DEPLOYDIR/lib/pkgconfig
-  # To avoid running strip on a fat archive as this is not supported by strip
-  sed -i bak -e "s/\$(STRIP) -x lib\/\$(LIB.STATIC)//" Makefile 
-  make GLEW_DEST=$DEPLOYDIR CFLAGS.EXTRA="-no-cpp-precomp -dynamic -fno-common -mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" LDFLAGS.EXTRA="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64" install
-}
-
-build_opencsg()
-{
-  version=$1
-  echo "Building OpenCSG" $version "..."
-  cd $BASEDIR/src
-  rm -rf OpenCSG-$version
-  if [ ! -f OpenCSG-$version.tar.gz ]; then
-    curl -O http://www.opencsg.org/OpenCSG-$version.tar.gz
-  fi
-  tar xzf OpenCSG-$version.tar.gz
-  cd OpenCSG-$version
-  patch -p1 < $OPENSCADDIR/patches/OpenCSG-$version-MacOSX-port.patch
-  OPENSCAD_LIBRARIES=$DEPLOYDIR qmake -r CONFIG+="x86_64"
-  make install
-}
-
-build_eigen()
-{
-  version=$1
-  echo "Building eigen" $version "..."
-  cd $BASEDIR/src
-  rm -rf eigen-$version
-  ## Directory name for v2.0.17
-  rm -rf eigen-eigen-b23437e61a07
-  if [ ! -f eigen-$version.tar.bz2 ]; then
-    curl -LO http://bitbucket.org/eigen/eigen/get/$version.tar.bz2
-    mv $version.tar.bz2 eigen-$version.tar.bz2
-  fi
-  tar xjf eigen-$version.tar.bz2
-  ## File name for v2.0.17
-  ln -s eigen-eigen-b23437e61a07 eigen-$version
-  cd eigen-$version
-  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DEIGEN_BUILD_LIB=ON -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="x86_64"
-  make -j4
-  make install
-}
-
-if [ ! -f $OPENSCADDIR/openscad.pro ]; then
-  echo "Must be run from the OpenSCAD source root directory"
-  exit 0
-fi
-
-echo "Using basedir:" $BASEDIR
-rm -rf $DEPLOYDIR
-mkdir -p $SRCDIR $DEPLOYDIR
-build_eigen 2.0.17
-build_gmp 5.0.3
-build_mpfr 3.1.0
-build_boost 1.47.0
-# NB! For CGAL, also update the actual download URL in the function
-build_cgal 3.9
-build_glew 1.7.0
-build_opencsg 1.3.2
diff --git a/scripts/macosx-build-dependencies.sh b/scripts/macosx-build-dependencies.sh
index a52f1fe..fada8c4 100755
--- a/scripts/macosx-build-dependencies.sh
+++ b/scripts/macosx-build-dependencies.sh
@@ -1,15 +1,16 @@
 #!/bin/sh -e
 #
 # This script builds all library dependencies of OpenSCAD for Mac OS X.
-# The libraries will be build in 32- and 64-bit mode and backwards compatible with 
-# 10.5 "Leopard".
+# The libraries will be build in 64-bit (and optionally 32-bit mode) mode
+# and backwards compatible with 10.5 "Leopard".
 # 
-# Usage:
-# - Edit the BASEDIR variable. This is where libraries will be built and installed
-# - Edit the OPENSCADDIR variable. This is where patches are fetched from
+# This script must be run from the OpenSCAD source root directory
+#
+# Usage: macosx-build-dependencies.sh [-6]
+#  -6   Build only 64-bit binaries
 #
 # Prerequisites:
-# - MacPorts: curl eigen
+# - MacPorts: curl
 # - Qt4
 #
 # FIXME:
@@ -22,9 +23,17 @@ OPENSCADDIR=$PWD
 SRCDIR=$BASEDIR/src
 DEPLOYDIR=$BASEDIR/install
 MAC_OSX_VERSION_MIN=10.5
+OPTION_32BIT=true
+
+printUsage()
+{
+  echo "Usage: $0 [-6]"
+  echo
+  echo "  -6   Build only 64-bit binaries"
+}
 
 # Hack warning: gmplib is built separately in 32-bit and 64-bit mode
-# and then merged afterwards. gmplib's header files are dependant on
+# and then merged afterwards. gmplib's header files are dependent on
 # the CPU architecture on which configure was run and will be patched accordingly.
 build_gmp()
 {
@@ -37,12 +46,14 @@ build_gmp()
   fi
   tar xjf gmp-$version.tar.bz2
   cd gmp-$version
-  # 32-bit version
-  mkdir build-i386
-  cd build-i386
-  ../configure --prefix=$DEPLOYDIR/i386 "CFLAGS=-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" ABI=32 --enable-cxx
-  make install
-  cd ..
+  if $OPTION_32BIT; then
+    mkdir build-i386
+    cd build-i386
+    ../configure --prefix=$DEPLOYDIR/i386 "CFLAGS=-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" ABI=32 --enable-cxx
+    make install
+    cd ..
+  fi
+
   # 64-bit version
   mkdir build-x86_64
   cd build-x86_64
@@ -52,10 +63,16 @@ build_gmp()
   # merge
   cd $DEPLOYDIR
   mkdir -p lib
-  lipo -create i386/lib/libgmp.dylib x86_64/lib/libgmp.dylib -output lib/libgmp.dylib
+  if $OPTION_32BIT; then
+    lipo -create i386/lib/libgmp.dylib x86_64/lib/libgmp.dylib -output lib/libgmp.dylib
+  else
+    cp x86_64/lib/libgmp.dylib lib/libgmp.dylib
+  fi
   install_name_tool -id $DEPLOYDIR/lib/libgmp.dylib lib/libgmp.dylib
-  cp lib/libgmp.dylib i386/lib/
-  cp lib/libgmp.dylib x86_64/lib/
+  if $OPTION_32BIT; then
+    cp lib/libgmp.dylib i386/lib/
+    cp lib/libgmp.dylib x86_64/lib/
+  fi
   mkdir -p include
   cp x86_64/include/gmp.h include/
   cp x86_64/include/gmpxx.h include/
@@ -111,12 +128,13 @@ build_mpfr()
   tar xjf mpfr-$version.tar.bz2
   cd mpfr-$version
 
-  # 32-bit version
-  mkdir build-i386
-  cd build-i386
-  ../configure --prefix=$DEPLOYDIR/i386 --with-gmp=$DEPLOYDIR/i386 CFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386"
-  make install
-  cd ..
+  if $OPTION_32BIT; then
+    mkdir build-i386
+    cd build-i386
+    ../configure --prefix=$DEPLOYDIR/i386 --with-gmp=$DEPLOYDIR/i386 CFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386" LDFLAGS="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386"
+    make install
+    cd ..
+  fi
 
   # 64-bit version
   mkdir build-x86_64
@@ -126,7 +144,11 @@ build_mpfr()
 
   # merge
   cd $DEPLOYDIR
-  lipo -create i386/lib/libmpfr.dylib x86_64/lib/libmpfr.dylib -output lib/libmpfr.dylib
+  if $OPTION_32BIT; then
+    lipo -create i386/lib/libmpfr.dylib x86_64/lib/libmpfr.dylib -output lib/libmpfr.dylib
+  else
+    cp x86_64/lib/libmpfr.dylib lib/libmpfr.dylib
+  fi
   install_name_tool -id $DEPLOYDIR/lib/libmpfr.dylib lib/libmpfr.dylib
   mkdir -p include
   cp x86_64/include/mpfr.h include/
@@ -148,7 +170,10 @@ build_boost()
   cd boost_$bversion
   # We only need the thread and program_options libraries
   ./bootstrap.sh --prefix=$DEPLOYDIR --with-libraries=thread,program_options,filesystem,system,regex
-  ./bjam cflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386 -arch x86_64" linkflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386 -arch x86_64"
+  if $OPTION_32BIT; then
+    BOOST_EXTRA_FLAGS="-arch i386"
+  fi
+  ./bjam cflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64 $BOOST_EXTRA_FLAGS" linkflags="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch x86_64 $BOOST_EXTRA_FLAGS"
   ./bjam install
   install_name_tool -id $DEPLOYDIR/lib/libboost_thread.dylib $DEPLOYDIR/lib/libboost_thread.dylib 
   install_name_tool -id $DEPLOYDIR/lib/libboost_program_options.dylib $DEPLOYDIR/lib/libboost_program_options.dylib 
@@ -173,8 +198,11 @@ build_cgal()
   fi
   tar xzf CGAL-$version.tar.gz
   cd CGAL-$version
+  if $OPTION_32BIT; then
+    CGAL_EXTRA_FLAGS=";i386"
+  fi
   # We build a static lib. Not really necessary, but it's well tested.
-  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DGMP_INCLUDE_DIR=$DEPLOYDIR/include -DGMP_LIBRARIES=$DEPLOYDIR/lib/libgmp.dylib -DGMPXX_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_LIBRARIES=$DEPLOYDIR/lib/libmpfr.dylib -DWITH_CGAL_Qt3=OFF -DWITH_CGAL_Qt4=OFF -DWITH_CGAL_ImageIO=OFF -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="i386;x86_64" -DBOOST_ROOT=$DEPLOYDIR
+  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DGMP_INCLUDE_DIR=$DEPLOYDIR/include -DGMP_LIBRARIES=$DEPLOYDIR/lib/libgmp.dylib -DGMPXX_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_INCLUDE_DIR=$DEPLOYDIR/include -DMPFR_LIBRARIES=$DEPLOYDIR/lib/libmpfr.dylib -DWITH_CGAL_Qt3=OFF -DWITH_CGAL_Qt4=OFF -DWITH_CGAL_ImageIO=OFF -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="x86_64$CGAL_EXTRA_FLAGS" -DBOOST_ROOT=$DEPLOYDIR
   make -j4
   make install
 }
@@ -193,7 +221,10 @@ build_glew()
   mkdir -p $DEPLOYDIR/lib/pkgconfig
   # To avoid running strip on a fat archive as this is not supported by strip
   sed -i bak -e "s/\$(STRIP) -x lib\/\$(LIB.STATIC)//" Makefile 
-  make GLEW_DEST=$DEPLOYDIR CFLAGS.EXTRA="-no-cpp-precomp -dynamic -fno-common -mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386 -arch x86_64" LDFLAGS.EXTRA="-mmacosx-version-min=$MAC_OSX_VERSION_MIN -arch i386 -arch x86_64" install
+  if $OPTION_32BIT; then
+    GLEW_EXTRA_FLAGS="-arch i386"
+  fi
+  make GLEW_DEST=$DEPLOYDIR CFLAGS.EXTRA="-no-cpp-precomp -dynamic -fno-common -mmacosx-version-min=$MAC_OSX_VERSION_MIN $GLEW_EXTRA_FLAGS -arch x86_64" LDFLAGS.EXTRA="-mmacosx-version-min=$MAC_OSX_VERSION_MIN $GLEW_EXTRA_FLAGS -arch x86_64" install
 }
 
 build_opencsg()
@@ -208,7 +239,10 @@ build_opencsg()
   tar xzf OpenCSG-$version.tar.gz
   cd OpenCSG-$version
   patch -p1 < $OPENSCADDIR/patches/OpenCSG-$version-MacOSX-port.patch
-  OPENSCAD_LIBRARIES=$DEPLOYDIR qmake -r CONFIG+="x86 x86_64"
+  if $OPTION_32BIT; then
+    OPENCSG_EXTRA_FLAGS="x86"
+  fi
+  OPENSCAD_LIBRARIES=$DEPLOYDIR qmake -r CONFIG+="x86_64 $OPENCSG_EXTRA_FLAGS"
   make install
 }
 
@@ -228,7 +262,10 @@ build_eigen()
   ## File name for v2.0.17
   ln -s eigen-eigen-b23437e61a07 eigen-$version
   cd eigen-$version
-  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DEIGEN_BUILD_LIB=ON -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="i386;x86_64"
+  if $OPTION_32BIT; then
+    EIGEN_EXTRA_FLAGS=";i386"
+  fi
+  cmake -DCMAKE_INSTALL_PREFIX=$DEPLOYDIR -DEIGEN_BUILD_LIB=ON -DBUILD_SHARED_LIBS=FALSE -DCMAKE_OSX_DEPLOYMENT_TARGET="$MAC_OSX_VERSION_MIN" -DCMAKE_OSX_ARCHITECTURES="x86_64$EIGEN_EXTRA_FLAGS"
   make -j4
   make install
 }
@@ -238,11 +275,17 @@ if [ ! -f $OPENSCADDIR/openscad.pro ]; then
   exit 0
 fi
 
+while getopts '6' c
+do
+  case $c in
+    6) OPTION_32BIT=false
+  esac
+done
+
 echo "Using basedir:" $BASEDIR
-rm -rf $DEPLOYDIR
 mkdir -p $SRCDIR $DEPLOYDIR
 build_eigen 2.0.17
-build_gmp 5.0.3
+build_gmp 5.0.4
 build_mpfr 3.1.0
 build_boost 1.47.0
 # NB! For CGAL, also update the actual download URL in the function