unify build scripts. introduce 'version checker' script. simplify instructions

12 files changed, 768 insertions, 177 deletions

diff --git a/README.md b/README.md
index 1f9fb53..d618f85 100644
--- a/README.md
+++ b/README.md
@@ -131,35 +131,29 @@ compilation process.
 
 After that, follow the Compilation instructions below.
 
-### Building for newer Linux distributions
+### Building for Linux/BSD
 
-First, make sure that you have development tools installed to get GCC. 
-Then after you've cloned this git repository, use a package manager to 
-download packages for the dependency libraries listed above. Convenience 
-scripts are provided for some popular systems:
+First, make sure that you have git installed. Then after you've cloned 
+this git repository, run the script that attempts to download the 
+dependency packages for your system:
 
-    Ubuntu, Debian:    ./scripts/ubuntu-build-dependencies.sh
-    OpenSUSE:          ./scripts/opensuse-build-dependencies.sh
-    Fedora:            ./scripts/fedora-build-dependencies.sh
+    ./scripts/uni-get-dependencies.sh
 
-Check your library versions to make sure they meet the minimum 
-requirements listed above. After that follow the Compilation 
-instructions below.
+This will get the majority of necessary packages, although your 
+particular system may require you to manually install some. After installing
+dependencies, check their versions. You can run this script to help you:
 
-### Building for older Linux or building without root access
+    ./scripts/check-dependencies.sh
 
-First, make sure that you have development tools installed to get GCC.
-Then after you've cloned this git repository, run the script that sets 
-up the environment variables.
+If some of yours are out of date, you can build newer versions automatically
+into $HOME/openscad_deps with the following commands:
 
     source ./scripts/setenv-linbuild.sh
-
-Then run the script to download & compile all the prerequisite libraries above:
-
     ./scripts/linux-build-dependencies.sh
+    ./scripts/check-dependencies.sh
 
-Then add LD_LIBRARY_PATH=$HOME/openscad_deps to your ~/.bashrc
-After that, follow the Compilation instructions below.
+This may take several hours. If successfull, follow the Compilation 
+instructions below. If not, file an 'issue' on the OpenSCAD github.
 
 ### Building for Windows
 
@@ -173,13 +167,13 @@ the script that sets up the environment variables.
 
     source ./scripts/setenv-mingw-xbuild.sh
 
-Then run the script to download & compile all the prerequisite libraries above:
+Then run the script to download & compile all the dependency libraries:
 
     ./scripts/mingw-x-build-dependencies.sh
 
-Then skip the compilation instructions below. Instead, build an installer:
+Then, build OpenSCAD and package it to an installer:
 
-    OSTYPE=mingw-cross-env ./scripts/release-common.sh
+    ./scripts/release-common.sh mingw32
 
 ### Compilation
 
diff --git a/scripts/check-dependencies.sh b/scripts/check-dependencies.sh
new file mode 100755
index 0000000..536c46f
--- /dev/null
+++ b/scripts/check-dependencies.sh
@@ -0,0 +1,588 @@
+# Determine which versions of dependency libraries and tools are
+# available on the system. Compare these versions with the minimum parsed
+# from README.md and print results.
+#
+# usage
+#  check-dependencies.sh                # check version of all dependencies
+#  check-dependencies.sh debug          # debug this script
+#
+# design
+#  Detection is done through stages and fallbacks in case of failure.
+#
+#    1st stage, search by parsing header files and/or binary output
+#    2nd stage, search with pkg-config
+#    3rd stage, search by parsing output of package systems like dpkg or yum
+#
+#  Goal is portability and lack of complicated regex.
+#  Code style is 'pretend its python'. functions return strings under
+#  the $function_name_result variable. tmp variables are
+#  funcname_abbreviated_tmp. Local vars are not used for portability.
+#
+# todo
+#  look in /usr/local/ on linux
+#  if /usr/ and /usr/local/ on linux both hit, throw an error
+#  fallback- pkgconfig --exists, then --modversion
+#  fallback2 - pkg manager
+#  todo - use OPENSCAD_LIBRARIES ???
+#  - print location found, how found???
+#
+DEBUG=
+
+debug()
+{
+  if [ $DEBUG ]; then echo check-dependencies.sh: $* ; fi
+}
+
+
+eigen_sysver()
+{
+  debug eigen
+  eigpath=
+  eig3path=$1/include/eigen3/Eigen/src/Core/util/Macros.h
+  eig2path=$1/include/eigen2/Eigen/src/Core/util/Macros.h
+  if [ -e $eig3path ]; then eigpath=$eig3path; fi
+  if [ -e $eig2path ]; then eigpath=$eig2path; fi
+  debug $eig2path
+  if [ ! $eigpath ]; then return; fi
+  eswrld=`grep "define  *EIGEN_WORLD_VERSION  *[0-9]*" $eigpath | awk '{print $3}'`
+  esmaj=`grep "define  *EIGEN_MAJOR_VERSION  *[0-9]*" $eigpath | awk '{print $3}'`
+  esmin=`grep "define  *EIGEN_MINOR_VERSION  *[0-9]*" $eigpath | awk '{print $3}'`
+  eigen_sysver_result="$eswrld.$esmaj.$esmin"
+}
+
+opencsg_sysver()
+{
+  debug opencsg_sysver
+  if [ ! -e $1/include/opencsg.h ]; then return; fi
+  ocsgver=`grep "define  *OPENCSG_VERSION_STRING *[0-9x]*" $1/include/opencsg.h`
+  ocsgver=`echo $ocsgver | awk '{print $4}' | sed s/'"'//g | sed s/[^1-9.]//g`
+  opencsg_sysver_result=$ocsgver
+}
+
+cgal_sysver()
+{
+  cgalpath=$1/include/CGAL/version.h
+  if [ ! -e $cgalpath ]; then return; fi
+  cgal_sysver_result=`grep "define  *CGAL_VERSION  *[0-9.]*" $cgalpath | awk '{print $3}'`
+}
+
+boost_sysver()
+{
+  boostpath=$1/include/boost/version.hpp
+  if [ ! -e $boostpath ]; then return; fi
+  bsver=`grep 'define  *BOOST_LIB_VERSION *[0-9_"]*' $boostpath | awk '{print $3}'`
+  bsver=`echo $bsver | sed s/'"'//g | sed s/'_'/'.'/g`
+  boost_sysver_result=$bsver
+}
+
+mpfr_sysver()
+{
+  mpfrpath=$1/include/mpfr.h
+  if [ ! -e $mpfrpath ]; then return; fi
+  mpfrsver=`grep 'define  *MPFR_VERSION_STRING  *' $mpfrpath | awk '{print $3}'`
+  mpfrsver=`echo $mpfrsver | sed s/"-.*"// | sed s/'"'//g`
+  mpfr_sysver_result=$mpfrsver
+}
+
+gmp_sysver()
+{
+  # on some systems you have VERSION in gmp-$arch.h not gmp.h. use gmp*.h
+  if [ ! -e $1/include ]; then return; fi
+  gmppaths=`ls $1/include | grep ^gmp`
+  if [ ! "$gmppaths" ]; then return; fi
+  for gmpfile in $gmppaths; do
+    gmppath=$1/include/$gmpfile
+    if [ "`grep __GNU_MP_VERSION $gmppath`" ]; then
+      gmpmaj=`grep "define  *__GNU_MP_VERSION  *[0-9]*" $gmppath | awk '{print $3}'`
+      gmpmin=`grep "define  *__GNU_MP_VERSION_MINOR  *[0-9]*" $gmppath | awk '{print $3}'`
+      gmppat=`grep "define  *__GNU_MP_VERSION_PATCHLEVEL  *[0-9]*" $gmppath | awk '{print $3}'`
+    fi
+  done
+  gmp_sysver_result="$gmpmaj.$gmpmin.$gmppat"
+}
+
+qt4_sysver()
+{
+  qt4path=$1/include/qt4/QtCore/qglobal.h
+  if [ ! -e $qt4path ]; then return; fi
+  qt4ver=`grep 'define  *QT_VERSION_STR  *' $qt4path | awk '{print $3}'`
+  qt4ver=`echo $qt4ver | sed s/'"'//g`
+  qt4_sysver_result=$qt4ver
+}
+
+glew_sysver()
+{
+  glew_sysver_result= # glew has no traditional version numbers
+}
+
+imagemagick_sysver()
+{
+  if [ ! -x $1/bin/convert ]; then return; fi
+  imver=`$1/bin/convert --version | grep -i version`
+  imagemagick_sysver_result=`echo $imver | sed s/"[^0-9. ]"/" "/g | awk '{print $1}'`
+}
+
+flex_sysver()
+{
+  flexbin=$1/bin/flex
+  if [ -x $1/bin/gflex ]; then flexbin=$1/bin/gflex; fi # openbsd
+  if [ ! -x $flexbin ]; then return ; fi
+  flex_sysver_result=`$flexbin --version | sed s/"[^0-9.]"/" "/g`
+}
+
+bison_sysver()
+{
+  if [ ! -x $1/bin/bison ]; then return ; fi
+  bison_sysver_result=`$1/bin/bison --version | grep bison | sed s/"[^0-9.]"/" "/g`
+}
+
+gcc_sysver()
+{
+  bingcc=$1/bin/gcc
+  if [ ! -x $1/bin/gcc ]; then bingcc=gcc; fi
+  if [ ! "`$bingcc --version`" ]; then return; fi
+  gccver=`$bingcc --version| grep -i gcc`
+  gccver=`echo $gccver | sed s/"[^0-9. ]"/" "/g | awk '{print $1}'`
+  gcc_sysver_result=$gccver
+}
+
+git_sysver()
+{
+  if [ ! -x $1/bin/git ]; then return ; fi
+  git_sysver_result=`$1/bin/git --version | grep git | sed s/"[^0-9.]"/" "/g`
+}
+
+curl_sysver()
+{
+  if [ ! -x $1/bin/curl ]; then return; fi
+  curl_sysver_result=`$1/bin/curl --version | grep curl | sed s/"[^0-9. ]"/" "/g | awk '{print $1}'`
+}
+
+cmake_sysver()
+{
+  if [ ! -x $1/bin/cmake ]; then return ; fi
+  cmake_sysver_result=`$1/bin/cmake --version | grep cmake | sed s/"[^0-9.]"/" "/g`
+}
+
+make_sysver()
+{
+  binmake=$1/bin/make
+  if [ -x $1/bin/gmake ]; then binmake=$1/bin/gmake ;fi
+  if [ ! -x $binmake ]; then return ;fi
+  make_sysver_result=`$binmake --version 2>&1 | grep -i 'gnu make' | sed s/"[^0-9.]"/" "/g`
+  if [ ! "`echo $make_sysver_result | grep [0-9]`" ]; then return; fi
+}
+
+bash_sysver()
+{
+  if [ -x /bin/bash ]; then binbash=/bin/bash ;fi
+  if [ -x /usr/bin/bash ]; then binbash=/usr/bin/bash ;fi
+  if [ -x $1/bin/bash ]; then binbash=$1/bin/bash ;fi
+  if [ ! -x $binbash ]; then return; fi
+  bash_sysver_result=`$binbash --version | grep bash | sed s/"[^0-9. ]"/" "/g|awk '{print $1}'`
+}
+
+python_sysver()
+{
+  if [ ! -x $1/bin/python ]; then return; fi
+  python_sysver_result=`$1/bin/python --version 2>&1 | awk '{print $2}'`
+}
+
+set_default_package_map()
+{
+  glew=glew
+  boost=boost
+  eigen=eigen3
+  imagemagick=imagemagick
+  make=make
+  python=python
+  opencsg=opencsg
+  cgal=cgal
+  bison=bison
+  gmp=gmp
+  mpfr=mpfr
+  bash=bash
+  flex=flex
+  gcc=gcc
+  cmake=cmake
+  curl=curl
+  git=git
+  qt4=qt4
+}
+
+
+apt_pkg_search()
+{
+  debug apt_pkg_search $*
+  apt_pkg_search_result=
+  pkgname=$1
+  dps_ver=
+
+  # translate pkgname to apt packagename
+  set_default_package_map
+  for pn in cgal boost mpfr opencsg qt4; do eval $pn="lib"$pn"-dev" ; done
+
+  # handle multiple version names of same package (ubuntu, debian, etc)
+  if [ $pkgname = glew ]; then
+    glewtest=`apt-cache search libglew-dev`
+    if [ "`echo $glewtest | grep glew1.6-dev`" ]; then glew=libglew1.6-dev;
+    elif [ "`echo $glewtest | grep glew1.5-dev`" ]; then glew=libglew1.5-dev;
+    elif [ "`echo $glewtest | grep glew-dev`" ]; then glew=libglew-dev; fi
+  elif [ $pkgname = gmp ]; then
+    if [ "`apt-cache search libgmp3-dev`" ]; then gmp=libgmp3-dev ;fi
+    if [ "`apt-cache search libgmp-dev`" ]; then gmp=libgmp-dev ;fi
+  fi
+
+  debpkgname=`eval echo "$"$pkgname`
+
+  if [ ! $debpkgname ]; then
+    debug "unknown package" $pkgname; return;
+  fi
+
+  debug $pkgname ".deb name:" $debpkgname
+  if [ ! "`command -v dpkg`" ]; then
+    debug command dpkg not found. cannot search packages.
+    return
+  fi
+
+  # examples of apt version strings
+  # cgal 4.0-4   gmp 2:5.0.5+dfsg  bison 1:2.5.dfsg-2.1 cmake 2.8.9~rc1
+
+  if [ $pkgname = eigen ]; then
+    aps_null=`dpkg --status libeigen3-dev 2>&1`
+    if [ $? = 0 ]; then
+      debpkgname=libeigen3-dev
+    else
+      debpkgname=libeigen2-dev
+    fi
+  fi
+
+  debug "test dpkg on $debpkgname"
+  testdpkg=`dpkg --status $debpkgname 2>&1`
+  if [ "$testdpkg" ]; then
+    #debug test dpkg: $testdpkg
+    if [ "`echo $testdpkg | grep -i version`" ]; then
+      dps_ver=`dpkg --status $debpkgname | grep -i ^version: | awk ' { print $2 }'`
+      debug version line from dpkg: $dps_ver
+      dps_ver=`echo $dps_ver | tail -1 | sed s/"[-~].*"// | sed s/".*:"// | sed s/".dfsg*"//`
+      debug version: $dps_ver
+    else
+      debug couldnt find version string after dpkg --status $debpkgname
+    fi
+  else
+    debug testdpkg failed on $debpkgname
+  fi
+
+  # Available to be system
+  #dps_ver=
+  #debug "test apt-cache on $debpkgname"
+  # apt-cache show is flaky on older apt. dont run unless search is OK
+  #test_aptcache=`apt-cache search $debpkgname`
+  #if [ "$test_aptcache" ]; then
+  #  test_aptcache=`apt-cache show $debpkgname`
+  #  if [ ! "`echo $test_aptcache | grep -i no.packages`" ]; then
+  #    ver=`apt-cache show $debpkgname | grep ^Version: | awk ' { print $2 }'`
+  #    ver=`echo $ver | tail -1 | sed s/"[-~].*"// | sed s/".*:"// | sed s/".dfsg*"//`
+  #    if [ $ver ] ; then vera=$ver ; fi
+  #  fi
+  #fi
+
+  apt_pkg_search_result="$dps_ver"
+}
+
+set_fedora_package_map()
+{
+  cgal=CGAL-devel
+  eigen=eigen2-devel
+  qt4=qt-devel
+  imagemagick=ImageMagick
+  for pn in  boost gmp mpfr glew; do eval $pn=$pn"-devel" ; done
+}
+
+yum_pkg_search()
+{
+  yum_pkg_search_result=
+  pkgname=$1
+
+  set_default_package_map
+  set_fedora_package_map
+  fedora_pkgname=`eval echo "$"$pkgname`
+
+  debug $pkgname". fedora name:" $fedora_pkgname
+  if [ ! $fedora_pkgname ]; then
+    debug "unknown package" $pkgname; return;
+  fi
+
+  test_yum=`yum info $fedora_pkgname 2>&1`
+  if [ "$test_yum" ]; then
+    debug test_yum: $test_yum
+    ydvver=`yum info $fedora_pkgname 2>&1 | grep ^Version | awk '{print $3}' `
+    if [ $ydvver ]; then ydvver=$ydvver ; fi
+  else
+    debug test_yum failed on $pkgname
+  fi
+  yum_pkg_search_result="$ydvver"
+}
+
+
+pkg_search()
+{
+  debug pkg_search $*
+  pkg_search_result=
+
+  if [ "`command -v apt-get`" ]; then
+    apt_pkg_search $*
+    pkg_search_result=$apt_pkg_search_result
+  elif [ "`command -v yum`" ]; then
+    yum_pkg_search $*
+    pkg_search_result=$yum_pkg_search_result
+  else
+    echo unknown system type. cannot search packages.
+  fi
+}
+
+pkg_config_search()
+{
+  debug pkg_config_search $*
+  pkg_config_search_result=
+  pcstmp=
+  if [ ! $1 ]; then return; fi
+  pkgname=$1
+
+  pkg-config --exists $pkgname 2>&1
+  if [ $? = 0 ]; then
+    pkg_config_search_result=`pkg-config --modversion $pkgname`
+  else
+    debug pkg_config_search failed on $*, result of run was: $pcstmp
+  fi
+}
+
+
+
+
+get_minversion_from_readme()
+{
+  if [ -e README.md ]; then READFILE=README.md; fi
+  if [ -e ../README.md ]; then READFILE=../README.md; fi
+  if [ ! $READFILE ]; then echo "cannot find README.md"; exit; fi
+  debug get_minversion_from_readme $*
+  if [ ! $1 ]; then return; fi
+  depname=$1
+  local grv_tmp=
+  debug $depname
+  # example-->     * [CGAL (3.6 - 3.9)] (www.cgal.org)  becomes 3.6
+  # steps: eliminate *, find left (, find -, make 'x' into 0, delete junk
+  grv_tmp=`grep -i ".$depname.*([0-9]" $READFILE | sed s/"*"//`
+  debug $grv_tmp
+  grv_tmp=`echo $grv_tmp | awk -F"(" '{print $2}'`
+  debug $grv_tmp
+  grv_tmp=`echo $grv_tmp | awk -F"-" '{print $1}'`
+  debug $grv_tmp
+  grv_tmp=`echo $grv_tmp | sed s/"x"/"0"/g`
+  debug $grv_tmp
+  grv_tmp=`echo $grv_tmp | sed s/"[^0-9.]"//g`
+  debug $grv_tmp
+  get_minversion_from_readme_result=$grv_tmp
+}
+
+
+find_min_version()
+{
+  find_min_version_result=
+  fmvtmp=
+  if [ ! $1 ] ; then return; fi
+  fmvdep=$1
+  get_minversion_from_readme $fmvdep
+  fmvtmp=$get_minversion_from_readme_result
+  if [ $fmvdep = "git" ]; then fmvtmp=1.5 ; fi
+  if [ $fmvdep = "curl" ]; then fmvtmp=6 ; fi
+  if [ $fmvdep = "make" ]; then fmvtmp=3 ; fi
+  if [ $fmvdep = "python" ]; then fmvtmp=2 ; fi
+  find_min_version_result=$fmvtmp
+}
+
+vers_to_int()
+{
+  # change x.y.z.p into x0y0z0p for purposes of comparison with -lt or -gt
+  # it will work as long as the resulting int is less than 2.147 billion
+  # and y z and p are less than 99
+  # 1.2.3.4 into 1020304
+  # 1.11.0.12 into 1110012
+  # 2011.2.3 into 20110020300
+  # the resulting integer can be simply compared using -lt or -gt
+  vers_to_int_result=
+  if [ ! $1 ] ; then return ; fi
+  vtoi_ver=$1
+  vtoi_test=`echo $vtoi_ver | sed s/"[^0-9.]"//g`
+  debug vers_to_int $* :: vtoi_ver: $vtoi_ver vtoi_test: $vtoi_test
+  if [ ! "$vtoi_test" = "$vtoi_ver" ]; then
+    debug failure in version-to-integer conversion.
+    debug '"'$vtoi_ver'"' has letters, etc in it. setting to 0
+    vtoi_ver="0"
+  fi
+  vers_to_int_result=`echo $vtoi_ver | awk -F. '{print $1*1000000+$2*10000+$3*100+$4}'`
+  vtoi_ver=
+  vtoi_test=
+}
+
+
+version_less_than_or_equal()
+{
+  if [ ! $1 ]; then return; fi
+  if [ ! $2 ]; then return; fi
+  v1=$1
+  v2=$2
+  vers_to_int $v1
+  v1int=$vers_to_int_result
+  vers_to_int $v2
+  v2int=$vers_to_int_result
+  debug "v1, v2, v1int, v2int" , $v1, $v2, $v1int, $v2int
+  if [ $v1int -le $v2int ]; then
+    debug "v1 <= v2"
+    return 0
+  else
+    debug "v1 > v2"
+    return 1
+  fi
+  v1=
+  v2=
+  v1int=
+  v2int=
+}
+
+compare_version()
+{
+  debug compare_version $*
+  compare_version_result="NotOK"
+  if [ ! $1 ] ; then return; fi
+  if [ ! $2 ] ; then return; fi
+  cvminver=$1
+  cvinstver=$2
+  cvtmp=
+  version_less_than_or_equal $cvminver $cvinstver
+  if [ $? = 0 ]; then
+    cvtmp="OK"
+  else
+    cvtmp="NotOK"
+  fi
+  compare_version_result=$cvtmp
+  cvtmp=
+}
+
+pretty_print()
+{
+  debug pretty_print $*
+
+  brightred="\033[1;31m"
+  red="\033[0;31m"
+  brown="\033[0;33m"
+  yellow="\033[1;33m"
+  white="\033[1;37m"
+  purple="\033[1;35m"
+  green="\033[0;32m"
+  cyan="\033[0;36m"
+  gray="\033[0;37m"
+  nocolor="\033[0m"
+
+  ppstr="%s%-12s"
+  pp_format='{printf("'$ppstr$ppstr$ppstr$ppstr$nocolor'\n",$1,$2,$3,$4,$5,$6,$7,$8)}'
+  pp_title="$gray depname $gray minimum $gray system $gray OKness"
+  if [ $1 ]; then pp_dep=$1; fi
+  if [ $pp_dep = "title" ]; then
+    echo -e $pp_title | awk $pp_format
+    return ;
+  fi
+
+  if [ $2 ]; then pp_minver=$2; else pp_minver="unknown"; fi
+  if [ $3 ]; then pp_sysver=$3; else pp_sysver="unknown"; fi
+  if [ $4 ]; then pp_compared=$4; else pp_compared="NotOK"; fi
+
+  if [ $pp_compared = "NotOK" ]; then
+    pp_cmpcolor=$purple;
+    pp_ivcolor=$purple;
+  else
+    pp_cmpcolor=$green;
+    pp_ivcolor=$gray;
+  fi
+  echo -e $cyan $pp_dep $gray $pp_minver $pp_ivcolor $pp_sysver $pp_cmpcolor $pp_compared | awk $pp_format
+  pp_dep=
+  pp_minver=
+  pp_sysver=
+  pp_compared=
+}
+
+
+
+
+find_installed_version()
+{
+  debug find_installed_version $*
+  find_installed_version_result=unknown
+  fsv_tmp=
+  dep=$1
+
+  # try to find/parse headers and/or binary output
+  if [ ! $fsv_tmp ]; then
+    for syspath in "/opt" "/usr/pkg" "/usr" "/usr/local" $OPENSCAD_LIBRARIES; do
+      if [ -e $syspath ]; then
+        debug $dep"_sysver" $syspath
+        eval $dep"_sysver" $syspath
+        fsv_tmp=`eval echo "$"$dep"_sysver_result"`
+      fi
+    done
+  fi
+
+  # use pkg-config to search
+  if [ ! $fsv_tmp ]; then
+    if [ "`command -v pkg-config`" ]; then
+      pkg_config_search $dep
+      fsv_tmp=$pkg_config_search_result
+    fi
+  fi
+
+  # use the package system to search
+  if [ ! $fsv_tmp ]; then
+    pkg_search $dep
+    fsv_tmp=$pkg_search_result
+  fi
+
+  if [ $fsv_tmp ]; then
+    find_installed_version_result=$fsv_tmp
+  fi
+}
+
+
+
+
+
+
+checkargs()
+{
+  for i in $*; do
+    if [ $i = "debug" ]; then DEBUG=1 ; fi
+  done
+}
+
+main()
+{
+  deps="qt4 cgal gmp cmake mpfr boost opencsg glew eigen gcc"
+  deps="$deps python bison flex git curl make"
+  #deps="$deps imagemagick" # needs work, only needed for tests
+  #deps="eigen glew opencsg" # debug
+  pretty_print title
+  for dep in $deps; do
+    debug "processing $dep"
+    find_installed_version $dep
+    dep_sysver=$find_installed_version_result
+    find_min_version $dep
+    dep_minver=$find_min_version_result
+    compare_version $dep_minver $dep_sysver
+    dep_compare=$compare_version_result
+  	pretty_print $dep $dep_minver $dep_sysver $dep_compare
+  done
+}
+
+checkargs $*
+main
+exit 0
+
diff --git a/scripts/fedora-build-dependencies.sh b/scripts/fedora-build-dependencies.sh
deleted file mode 100755
index 7481a63..0000000
--- a/scripts/fedora-build-dependencies.sh
+++ /dev/null
@@ -1,29 +0,0 @@
-echo "Tested on Fedora 17. If this fails try 'old linux' build (see README.md)"
-sleep 2
-
-# Fedora 17 has CGAL 4
-#if [ "`yum list installed | grep -i cgal`" ]; then
-#	echo "Please make sure you have removed all cgal packages and retry"
-#	exit
-#fi
-
-if [ "`yum list installed | grep -i opencsg`" ]; then
-	echo "Please make sure you have removed all opencsg packages and retry"
-	exit
-fi
-
-sudo yum install qt-devel bison flex eigen2-devel \
- boost-devel mpfr-devel gmp-devel glew-devel CGAL-devel gcc pkgconfig git
-
-#echo "now copy/paste the following to install CGAL and OpenCSG from source:"
-#echo "sudo BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh cgal-use-sys-libs"
-
-echo
-echo "Now copy/paste the following to install OpenCSG from source:"
-echo
-# https://bugzilla.redhat.com/show_bug.cgi?id=144967
-echo "sudo echo /usr/local/lib | sudo tee -a /etc/ld.so.conf.d/local.conf"
-echo "sudo ldconfig"
-echo "sudo BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh opencsg"
-echo
-
diff --git a/scripts/freebsd-build-dependencies.sh b/scripts/freebsd-build-dependencies.sh
deleted file mode 100755
index 4ea61de..0000000
--- a/scripts/freebsd-build-dependencies.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/local/bin/bash -e
-
-echo "Tested on FreeBSD 9. Please see README.md for info on older systems."
-
-if [ "`pkg_info | grep -i cgal `" ]; then
-	echo Stopping. Please remove any CGAL packages you have installed and restart
-	exit
-fi
-
-if [ "`pkg_info | grep -i opencsg`" ]; then
-	echo Stopping. Please remove any OpenCSG packages you have installed and restart
-	exit
-fi
-
-OPENSCADDIR=$PWD
-if [ ! -f $OPENSCADDIR/openscad.pro ]; then
-  echo "Must be run from the OpenSCAD source root directory"
-  exit 0
-fi
-
-. ./scripts/setenv-freebsdbuild.sh
-
-pkg_add -r bison boost-libs cmake git bash eigen2 flex gmake gmp mpfr 
-pkg_add -r xorg libGLU libXmu libXi xorg-vfbserver glew
-pkg_add -r qt4-corelib qt4-gui qt4-moc qt4-opengl qt4-qmake qt4-rcc qt4-uic
-
-BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh cgal-use-sys-libs
-BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh opencsg
diff --git a/scripts/opensuse-build-dependencies.sh b/scripts/opensuse-build-dependencies.sh
deleted file mode 100755
index 623d7d0..0000000
--- a/scripts/opensuse-build-dependencies.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-echo "tested on OpenSUSE 12. If this fails try 'old linux' build (see README.md)"
-
-sudo zypper install libeigen2-devel mpfr-devel gmp-devel boost-devel \
- libqt4-devel glew-devel cmake git 
-
-echo "now copy/paste the following to install CGAL and OpenCSG from source:"
-echo "sudo BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh cgal-use-sys-libs"
-echo "sudo BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh opencsg"
diff --git a/scripts/setenv-freebsdbuild.sh b/scripts/setenv-freebsdbuild.sh
deleted file mode 100644
index 49f1783..0000000
--- a/scripts/setenv-freebsdbuild.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-# run with '. ./scripts/setenv-freebsdbuild.sh'
-
-# use in conjuction with freebsd-build-dependencies.sh
-
-QMAKESPEC=freebsd-g++
-QTDIR=/usr/local/share/qt4
diff --git a/scripts/setenv-linbuild-clang.sh b/scripts/setenv-linbuild-clang.sh
deleted file mode 100644
index 9551235..0000000
--- a/scripts/setenv-linbuild-clang.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-# build dependencies and/or openscad on linux with the clang compiler
-
-export CC=clang
-export CXX=clang++
-export QMAKESPEC=unsupported/linux-clang
-
-echo CC has been modified: $CC
-echo CXX has been modified: $CXX
-echo QMAKESPEC has been modified: $QMAKESPEC
-
-. ./scripts/setenv-linbuild.sh
-
diff --git a/scripts/setenv-linbuild.sh b/scripts/setenv-linbuild.sh
deleted file mode 100644
index 338cac9..0000000
--- a/scripts/setenv-linbuild.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-# setup environment variables for building OpenSCAD against custom built
-# dependency libraries. called by linux-build-dependencies.sh
-
-# run this file with 'source setenv-linbuild.sh' every time you re-login
-# and want to build or run openscad against custom libraries installed
-# into BASEDIR.
-
-# copy this file to your .bashrc if desired.
-
-if [ ! $BASEDIR ]; then
-  BASEDIR=$HOME/openscad_deps
-fi
-DEPLOYDIR=$BASEDIR
-
-export PATH=$BASEDIR/bin:$PATH
-export LD_LIBRARY_PATH=$DEPLOYDIR/lib:$DEPLOYDIR/lib64
-export LD_RUN_PATH=$DEPLOYDIR/lib:$DEPLOYDIR/lib64
-export OPENSCAD_LIBRARIES=$DEPLOYDIR
-export GLEWDIR=$DEPLOYDIR
-
-echo BASEDIR: $BASEDIR
-echo DEPLOYDIR: $DEPLOYDIR
-echo PATH modified
-echo LD_LIBRARY_PATH modified
-echo LD_RUN_PATH modified
-echo OPENSCAD_LIBRARIES modified
-echo GLEWDIR modified
-
-if [ "`command -v qmake-qt4`" ]; then
-	echo "Please re-run qmake-qt4 and run 'make clean' if necessary"
-else
-	echo "Please re-run qmake and run 'make clean' if necessary"
-fi
-
diff --git a/scripts/setenv-unibuild.sh b/scripts/setenv-unibuild.sh
new file mode 100644
index 0000000..ba99235
--- /dev/null
+++ b/scripts/setenv-unibuild.sh
@@ -0,0 +1,64 @@
+# setup environment variables for building OpenSCAD against custom built
+# dependency libraries.
+#
+# run with 'source ./scripts/setenv-unibuild.sh'
+#
+# run it every time you re-login and want to build or run openscad
+# against custom libraries installed into BASEDIR.
+#
+# used in conjuction with uni-build-dependencies.sh
+
+setenv_common()
+{
+ if [ ! $BASEDIR ]; then
+  BASEDIR=$HOME/openscad_deps
+ fi
+ DEPLOYDIR=$BASEDIR
+
+ export PATH=$BASEDIR/bin:$PATH
+ export LD_LIBRARY_PATH=$DEPLOYDIR/lib:$DEPLOYDIR/lib64
+ export LD_RUN_PATH=$DEPLOYDIR/lib:$DEPLOYDIR/lib64
+ export OPENSCAD_LIBRARIES=$DEPLOYDIR
+ export GLEWDIR=$DEPLOYDIR
+
+ echo BASEDIR: $BASEDIR
+ echo DEPLOYDIR: $DEPLOYDIR
+ echo PATH modified
+ echo LD_LIBRARY_PATH modified
+ echo LD_RUN_PATH modified
+ echo OPENSCAD_LIBRARIES modified
+ echo GLEWDIR modified
+
+ if [ "`command -v qmake-qt4`" ]; then
+ 	echo "Please re-run qmake-qt4 and run 'make clean' if necessary"
+ else
+ 	echo "Please re-run qmake and run 'make clean' if necessary"
+ fi
+}
+
+setenv_freebsd()
+{
+ setenv_common
+ QMAKESPEC=freebsd-g++
+ QTDIR=/usr/local/share/qt4
+}
+
+setenv_linux_clang()
+{
+ export CC=clang
+ export CXX=clang++
+ export QMAKESPEC=unsupported/linux-clang
+
+ echo CC has been modified: $CC
+ echo CXX has been modified: $CXX
+ echo QMAKESPEC has been modified: $QMAKESPEC
+}
+
+if [ "`uname | grep -i 'linux\|debian'`" ]; then
+ setenv_common
+ if [ "`echo $* | grep clang`" ]; then
+  setenv_linux_clang
+ fi
+elif [ "`uname | grep -i freebsd`" ]; then
+ setenv_freebsd
+fi
diff --git a/scripts/ubuntu-build-dependencies.sh b/scripts/ubuntu-build-dependencies.sh
deleted file mode 100755
index 1754e32..0000000
--- a/scripts/ubuntu-build-dependencies.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-
-too_old()
-{
-	echo "System version too low. Please try 'old linux' build (see README.md)"
-	exit
-}
-
-if [ "`cat /etc/issue | grep 'Debian GNU/Linux 6.0'`" ]; then
-	too_old
-fi
-if [ "`cat /etc/issue | grep 'Debian GNU/Linux 5'`" ]; then
-	too_old
-fi
-if [ "`cat /etc/issue | grep 'Ubunutu 10'`" ]; then
-	too_old
-fi
-if [ "`cat /etc/issue | grep 'Ubunutu 9'`" ]; then
-	too_old
-fi
-if [ "`cat /etc/issue | grep 'Ubunutu 8'`" ]; then
-	too_old
-fi
-if [ "`cat /etc/issue | grep 'Ubunutu 7'`" ]; then
-	too_old
-fi
-
-echo "tested on Ubuntu 12. If this fails try 'old linux' build (see README.md)"
-
-sudo apt-get install build-essential libqt4-dev libqt4-opengl-dev \
- libxmu-dev cmake bison flex libeigen2-dev git-core libboost-all-dev \
- libXi-dev libmpfr-dev libgmp-dev libboost-dev libglew1.6-dev \
- libcgal-dev libopencsg-dev
-
diff --git a/scripts/linux-build-dependencies.sh b/scripts/uni-build-dependencies.sh
index 5e361df..009d41e 100755
--- a/scripts/linux-build-dependencies.sh
+++ b/scripts/uni-build-dependencies.sh
@@ -1,19 +1,20 @@
 #!/bin/sh -e
 
-# linux-build-dependencies by don bright 2012. copyright assigned to
+# uni-build-dependencies by don bright 2012. copyright assigned to
 # Marius Kintel and Clifford Wolf, 2012. released under the GPL 2, or
 # later, as described in the file named 'COPYING' in OpenSCAD's project root.
 
 #
-# This script builds all library dependencies of OpenSCAD for Linux
+# This script builds all library dependencies of OpenSCAD for Linux/BSD
 #
 # This script must be run from the OpenSCAD source root directory
 #
-# Usage: linux-build-dependencies.sh
+# Usage: uni-build-dependencies.sh
 #
 # Prerequisites:
 # - wget or curl
 # - Qt4
+# - other
 #
 
 printUsage()
@@ -275,7 +276,7 @@ if [ ! -f $OPENSCADDIR/openscad.pro ]; then
   exit 0
 fi
 
-. ./scripts/setenv-linbuild.sh # '.' is equivalent to 'source'
+. ./scripts/setenv-unibuild.sh # '.' is equivalent to 'source'
 SRCDIR=$BASEDIR/src
 
 if [ ! $NUMCPU ]; then
diff --git a/scripts/uni-get-dependencies.sh b/scripts/uni-get-dependencies.sh
new file mode 100755
index 0000000..91a87a4
--- /dev/null
+++ b/scripts/uni-get-dependencies.sh
@@ -0,0 +1,94 @@
+
+get_fedora_deps()
+{
+ echo "Tested on Fedora 17. Please see README.md for info on older systems."
+ sudo yum install qt-devel bison flex eigen2-devel \
+  boost-devel mpfr-devel gmp-devel glew-devel CGAL-devel gcc pkgconfig git
+}
+
+get_freebsd_deps()
+{
+ echo "Tested on FreeBSD 9. Please see README.md for info on older systems."
+
+ if [ "`pkg_info | grep -i cgal `" ]; then
+  echo Stopping. Please remove any CGAL packages you have installed and restart
+  exit
+ fi
+
+ if [ "`pkg_info | grep -i opencsg`" ]; then
+  echo Stopping. Please remove any OpenCSG packages you have installed and restart
+  exit
+ fi
+
+ pkg_add -r bison boost-libs cmake git bash eigen2 flex gmake gmp mpfr
+ pkg_add -r xorg libGLU libXmu libXi xorg-vfbserver glew
+ pkg_add -r qt4-corelib qt4-gui qt4-moc qt4-opengl qt4-qmake qt4-rcc qt4-uic
+
+ #echo "BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh cgal-use-sys-libs"
+ #echo "BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh opencsg"
+}
+
+
+debian_too_old()
+{
+	echo "System version too low. Please try 'old linux' build (see README.md)"
+	exit
+}
+
+get_debian_deps()
+{
+ if [ "`cat /etc/issue | grep 'Debian GNU/Linux 6.0'`" ]; then
+  debian_too_old
+ fi
+ if [ "`cat /etc/issue | grep 'Debian GNU/Linux 5'`" ]; then
+  debian_too_old
+ fi
+ if [ "`cat /etc/issue | grep 'Ubunutu 10'`" ]; then
+  debian_too_old
+ fi
+ if [ "`cat /etc/issue | grep 'Ubunutu 9'`" ]; then
+  debian_too_old
+ fi
+ if [ "`cat /etc/issue | grep 'Ubunutu 8'`" ]; then
+  debian_too_old
+ fi
+ if [ "`cat /etc/issue | grep 'Ubunutu 7'`" ]; then
+  debian_too_old
+ fi
+ echo "tested on Ubuntu 12. If this fails try 'old linux' build (see README.md)"
+
+ sudo apt-get install build-essential libqt4-dev libqt4-opengl-dev \
+  libxmu-dev cmake bison flex libeigen2-dev git-core libboost-all-dev \
+  libXi-dev libmpfr-dev libgmp-dev libboost-dev libglew1.6-dev \
+  libcgal-dev libopencsg-dev
+}
+
+
+get_opensuse_deps()
+{
+ echo "tested on OpenSUSE 12. If this fails try 'old linux' build (see README.md)"
+
+ sudo zypper install libeigen2-devel mpfr-devel gmp-devel boost-devel \
+  libqt4-devel glew-devel cmake git
+
+ # sudo BASEDIR=/usr/local ./scripts/linux-build-dependencies.sh opencsg
+}
+
+
+
+
+if [ "`cat /etc/issue | grep -i ubuntu`" ]; then
+ get_debian_deps
+elif [ "`cat /etc/issue | grep -i debian`" ]; then
+ get_ubuntu_deps
+elif [ "`cat /etc/issue | grep -i opensuse`" ]; then
+ get_opensuse_deps
+elif [ "`cat /etc/issue | grep -i freebsd`" ]; then
+ get_freebsd_deps
+elif [ "`cat /etc/issue | grep  -i fedora`" ]; then
+ get_fedora_deps
+else
+ echo "Unknown system type. Please install the dependency packages listed"
+ echo "in README.md using your system's package manager."
+fi
+