Hi there, thanks for sharing livizjs.

Makefile

@@ -1,15 +1,167 @@
-all:
-	cd cdt; make
-	cd common; make
-	cd gvc; make
-	cd pathplan; make
-	cd graph; make
-	cd dotgen; make
+# Nathan Ramella ([email protected]) 
 
+CC = clang
+EMCC = emcc
+DEFINES = -DHAVE_CONFIG_H
+INCLUDE = -I. -Icdt -Icommon -Idotgen -Igraph -Igvc -Ipathplan 
+OPTIMIZATION_LEVEL = -O3
+
+# Setting c99 might not be critically important, but c89 didn't play
+# well for lack of inline.A
+
+CFLAGS = -std=c99 
+
+ifeq "$(shell uname -s)" "Darwin"
+EXTRA_CFLAGS = -arch i686
+EXTRA_DEFINES = -DHAVE_STRINGS_H
+endif
+
+SUBDIRS = cdt common gvc pathplan graph dotgen dotgen/liviz-api
+
+COMPILER_CMD=$(EMCC) $(DEFINES) $(EXTRA_DEFINES) $(INCLUDE) $(EXTRA_INCLUDE) $(CFLAGS) $(EXTRA_CFLAGS)
+
+# Dynamically generate a timestamp to tag the
+# build with.
+
+BUILD_TIMESTAMP = $(shell date +%s)
+
+CDT_SRC = $(addprefix cdt/, \
+	dtclose.c dtdisc.c dtextract.c dtview.c	\
+	dthash.c  dtlist.c dtflatten.c dtrestore.c \
+	dtopen.c  dtsize.c dtstrhash.c dttreeset.c \
+	dttree.c  dtwalk.c dtmethod.c)
+
+COMMON_SRC = $(addprefix common/, \
+	ns.c xdot.c emit.c geom.c input.c utils.c \
+	arrows.c timing.c labels.c memory.c \
+	shapes.c splines.c globals.c htmllex.c \
+	postproc.c htmlparse.c htmltable.c \
+	routespl.c colxlate.c psusershape.c \
+	fontmetrics.c)
+
+GVC_SRC = $(addprefix gvc/,	\
+	gvc.c gvconfig.c gvcontext.c gvdevice.c	\
+	gvlayout.c gvevent.c gvjobs.c gvplugin.c \
+	gvrender.c gvusershape.c gvloadimage.c \
+	gvtextlayout.c)
+
+PATHPLAN_SRC = $(addprefix pathplan/, \
+	cvt.c inpoly.c route.c shortest.c \
+	solvers.c triang.c util.c \
+	visibility.c)
+
+GRAPH_SRC = $(addprefix graph/, \
+	agxbuf.c attribs.c edge.c graph.c \
+	graphio.c lexer.c node.c parser.c \
+	refstr.c trie.c)
+
+DOTGEN_SRC = $(addprefix dotgen/, \
+	acyclic.c aspect.c class1.c class2.c \
+	cluster.c compound.c conc.c decomp.c \
+	dotinit.c dotsplines.c fastgr.c	\
+	flat.c mincross.c position.c rank.c \
+	sameport.c)
+
+# This is a little trick to make the maintenance of exported 
+# functions a little easier. Add them to the EXPORTED_FUNCTION_LIST
+# below and at build time through the magic of awk and some make
+# voodoo, they'll be assembled into a Python parsable array that
+# can be passed to emscripten.
+
+
+EXPORTED_FUNCTION_LIST = \
+ 	_finalizeGVContext \
+	_prepareGVContext \
+	_getFirstNode \
+	_getNextNode \
+	_getCurentGraph \
+	_beginGVJob \
+	_testCountNodes \
+	_countEdges \
+	_extractGraph \
+	_runDotLayout \
+	_getNodeName \
+	_getGraphWidth \
+	_getGraphHeight \
+	_getEdgeColor \
+	_extractRanks \
+	_extractEdgesEarly \
+	_getEdgeLabel
+
+EXPORTED_FUNCTIONS = $(addprefix -s EXPORTED_FUNCTIONS=[, \
+			$(addsuffix ], \
+				$(shell echo $(EXPORTED_FUNCTION_LIST) \
+					| awk '{for (i=1;i<NF;++i) printf("\\\"%s\\\",",$$i); printf("\\\"%s\\\"\n",$$NF) }') \
+				) \
+			)
+
+LIBS = $(addprefix build/, \
+			libcdt-em.bc \
+			libcommon-em.bc	\
+			libgvc-em.bc \
+			libpathplan-em.bc \
+			libgraph-em.bc \
+			dotgen-em.bc)
+
+default: all
+
+all: build build_config_summary em-dotgen.js
+	mv em-dotgen.js liviz/
+	@ls -l liviz/em-dotgen.js
+	@echo "-------------------------------------------------------"
+	@echo "Done!"
+
+.PHONY:
+build_config_summary:
+	@echo "-------------------------------------------------------"
+	@echo
+	@echo " DEFINES = $(DEFINES) $(EXTRA_DEFINES)" | pr -l1 -t -3 
+	@echo " INCLUDE = $(INCLUDE) $(EXTRA_INCLUDE)" | pr -l1 -t -3 
+	@echo " EMFLAGS = $(EMFLAGS)" | pr -l1 -t -3 
+	@echo 
+	@echo "     OPT = $(OPTIMIZATION_LEVEL)"
+	@echo "   DEBUG = $(DEBUG)"
+	@echo
+	@echo "-------------------------------------------------------"
+
+build:
+	@mkdir -p build
+
+em-dotgen.js: build/testrun-dot-2.bc 
+	$(EMCC) $(OPTIMIZATION_LEVEL) $(EMFLAGS) $^ $(LIBS) build/liviz-apis.bc -o $@
+
+build/testrun-dot-2.bc: build/liviz-apis.bc
+	$(COMPILER_CMD) -o $@ -c dotgen/testrun-dot-2.c
+
+build/liviz-apis.bc: build $(LIBS) 
+	$(COMPILER_CMD) -o $@ dotgen/liviz-apis/liviz-apis.c
+
+build/libcdt-em.bc: $(CDT_SRC)
+	$(COMPILER_CMD) -o $@ $^ 
+
+build/libcommon-em.bc: $(COMMON_SRC)
+	$(COMPILER_CMD) -o $@ $^ 
+
+build/libgvc-em.bc: $(GVC_SRC)
+	$(COMPILER_CMD) -DBUILDDATE="\"$(BUILD_TIMESTAMP)\"" -o $@ $^
+
+build/libpathplan-em.bc: $(PATHPLAN_SRC)
+	$(COMPILER_CMD) -o $@ $^
+
+build/libgraph-em.bc: $(GRAPH_SRC)
+	$(COMPILER_CMD) -o $@ $^
+
+build/dotgen-em.bc: $(DOTGEN_SRC)
+	$(COMPILER_CMD) -o $@ $^
+
+.PHONY:
 clean:
-	cd cdt; make clean
-	cd common; make clean
-	cd gvc; make clean
-	cd pathplan; make clean
-	cd graph; make clean
-	cd dotgen; make clean
+	rm -f ./build/* ./*.bc *.bc em-dotgen.js liviz/em-dotgen.js liviz-*.zip
+
+.PHONY: 
+zip:
+	zip -r liviz-$(BUILD_TIMESTAMP).zip liviz
+
+.PHONY:
+install:
+	echo "This is where I put my install step.."	

common/arrows.c

@@ -13,6 +13,7 @@
 
 
 #include "render.h"
+#include <string.h>
 
 #define EPSILON .0001
 

common/geomprocs.h

@@ -17,11 +17,13 @@
 #ifndef GV_GEOMPROCS_H
 #define GV_GEOMPROCS_H
 
+//#define MIN(a,b) (((a)<(b))?(a):(b))
+//#define MAX(a,b) (((a)>(b))?(a):(b))
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-
 #include "geom.h"
 
 #ifdef WIN32

common/render.h

@@ -50,6 +50,7 @@ extern "C" {
 #include "gvcjob.h"		/* must follow gvcext.h (in types.h) */
 #include "gvcint.h"		/* must follow gvcext.h (in types.h) */
 #include "gvcproc.h"		/* must follow gvcext.h (in types.h) */
+#include "geom.h"
 
     typedef struct epsf_s {
 	int macro_id;

common/utils.c

@@ -11,20 +11,7 @@
  * Contributors: See CVS logs. Details at http://www.graphviz.org/
  *************************************************************************/
 
-#include "render.h"
-#include "agxbuf.h"
-#include "htmltable.h"
-#include "entities.h"
-#include "logic.h"
-#include "gvc.h"
-
-#ifdef WIN32
-#include "libltdl/lt_system.h"
-#endif
-#ifndef WIN32
-#include <unistd.h>
-#endif
-#include <ctype.h>
+#include "utils.h"
 
 /*
  *  a queue of nodes

common/utils.h

@@ -12,7 +12,25 @@
  *************************************************************************/
 
 #ifndef _UTILS_H
-#define _UTILS_H 1
+#define _UTILS_H
+
+#include "render.h"
+#include "agxbuf.h"
+#include "htmltable.h"
+#include "entities.h"
+#include "logic.h"
+#include "gvc.h"
+
+
+#ifdef WIN32
+#include "libltdl/lt_system.h"
+#endif
+#ifndef WIN32
+#include <unistd.h>
+#include <string.h>
+#endif
+#include <ctype.h>
+
 
 #ifdef __cplusplus
 extern "C" {

common/xdot.c

@@ -12,9 +12,6 @@
  *************************************************************************/
 
 #include <xdot.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
 
 #define NEW(t)           (t*)calloc(1, sizeof(t))
 #define N_NEW(n,t)       (t*)calloc((n), sizeof(t))
@@ -533,8 +530,9 @@ typedef struct {
     int dyna;			/* true if buffer is malloc'ed */
 } agxbuf;
 
-#define agxbputc(X,C) ((((X)->ptr >= (X)->eptr) ? agxbmore(X,1) : 0), \
-          (int)(*(X)->ptr++ = ((unsigned char)C)))
+//#define agxbputc(X,C) ((((X)->ptr >= (X)->eptr) ? agxbmore(X,1) : 0), (int)(*(X)->ptr++ = ((unsigned char)C)))
+#define agxbputc(X,C) ((((X)->ptr >= (X)->eptr) ? agxbmore(X,1) : 0), (*(X)->ptr++ = ((unsigned char)C)))
+
 #define agxbuse(X) (agxbputc(X,'\0'),(char*)((X)->ptr = (X)->buf))
 
 static void agxbinit(agxbuf * xb, unsigned int hint, unsigned char *init)

common/xdot.h

@@ -18,6 +18,10 @@
 #endif
 #define INITIAL_XDOT_CAPACITY 512
 
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
 typedef enum {
     xd_left, xd_center, xd_right
 } xdot_align;

config.h

@@ -1,3 +1,6 @@
+//#define MIN(a,b) (((a)<(b))?(a):(b))
+//#define MAX(a,b) (((a)>(b))?(a):(b))
+
 #define GVPLUGIN_CONFIG_FILE "config6"
 #define GVPLUGIN_VERSION 6
 #define PACKAGE "graphviz"
@@ -20,3 +23,4 @@
 #define DEFAULT_DPI 96
 
 #define HAVE_STRDUP 1
+#define HAVE_STRINGS_H 1