[graphviz-interest] Graphviz on IPhone

Hi,

I wanted try to use graphviz (source code graphviz-2.34.0.tar.gz) on iPhone.
I have builded the static libraries for iphone (architecture armv7):

export
DEV_iOS=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer
export SDK_iOS=${DEV_iOS}/SDKs/iPhoneOS6.1.sdk
export COMPILER_iOS=${DEV_iOS}/usr/bin

export CC=${COMPILER_iOS}/gcc
export CPP=${COMPILER_iOS}/llvm-cpp-4.2
export CXX=${COMPILER_iOS}/g++
export CXXCPP=${COMPILER_iOS}/g++
export OBJC=${COMPILER_iOS}/gcc
export LD=${COMPILER_iOS}/ld

export LDFLAGS="-arch armv7 -isysroot ${SDK_iOS}"
export CFLAGS="${LDFLAGS} -miphoneos-version-min=6.1"
export CXXFLAGS="${LDFLAGS} -miphoneos-version-min=6.1
-fvisibility-inlines-hidden"
export CXXCPPFLAGS="${LDFLAGS} -miphoneos-version-min=6.1"
export OBJCFLAGS="${LDFLAGS} -miphoneos-version-min=6.1
-fvisibility-inlines-hidden"

export AR=${COMPILER_iOS}/ar
export AS=${COMPILER_iOS}/as
export NM=${COMPILER_iOS}/nm
export CXXCPP=${COMPILER_iOS}/llvm-cpp-4.2
export RANLIB=${COMPILER_iOS}/ranlib

./configure --host=arm-apple-darwin11 
          --disable-dependency-tracking 
          --enable-shared=no 
          --enable-static=yes 
          --enable-ltdl-install=no 
          --enable-ltdl=no 
          --enable-swig=no 
          --enable-tcl=no 
          --with-codegens=no 
          --with-fontconfig=no 
          --with-freetype2=no 
          --with-ipsepcola=yes 
          --with-libgd=no 
          --with-quartz=yes 
          --with-visio=yes 
          --with-x=no 
          --with-cgraph=yes

make
touch lib/gvpr/gdefs.h
make

mkdir -p ~/Desktop/Graphiz/armv7
find . -name '*.a' -execdir cp '{}' ~/Desktop/Graphiz/armv7 \;

mkdir -p ~/Desktop/Graphiz/headers
find . -name '*.h' -execdir cp '{}' ~/Desktop/Graphiz/headers \;

So I have linked all static libraries in my xcode project for the following
code of example:

  Agraph_t *g;
  Agnode_t *n, *m;
  Agedge_t *e;

  /* set up a graphviz context - but only once even for multiple graphs */
  GVC_t *gvc = gvContext();



  /* Create a simple digraph */
  g = agopen("g", Agdirected, 0);
  n = agnode(g, "n", 1);
  m = agnode(g, "m", 1);
  e = agedge(g, n, m, 0, 1);

  /* Set an attribute - in this case one that affects the visible rendering
*/
  agsafeset(n, "color", "red", "");


  /* Output in .dot format */
      NSString *documentdir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES) lastObject];
  NSString *filename = [documentdir stringByAppendingPathComponent:@"out.png"];

  gvRenderFilename(gvc, g, "png", [filename UTF8String]);
  agclose(g);

But when I try to launch the app I have the following error:

Assertion failed: (bz.size > 0), function bezier_bb, file emit.c, line 3905.

Any suggestions is welcome. Thanks in advance for your attention.

A.G.

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