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--- doc:dev_blockly [2014/11/09 17:02] – admin
+++ doc:dev_blockly [2015/01/04 15:09] (current) – admin
@@ Line 6: / Line 6: @@
 ===== Install emscripten =====
-Under Ubuntu 14.04 that's easy: Just install
+The package under Ubuntu 14.04 is too old (1.10), but we'll need 1.12.1 to have the fastcomp compiler active. The older version generates a 'undefined setjmp()' error
-  sudo apt-get install emscripten
+So download the [[http://kripken.github.io/emscripten-site/docs/building_from_source/building_emscripten_from_source_using_the_sdk.html#building-emscripten-from-source-using-the-sdk|actual SDK]] and build it locally.
 ===== Compile Luac as javascript binary =====
@@ Line 26: / Line 26: @@
   CC= emcc
+make a note of the compiler flags, which are used (e.g. ''-O2 -Wall''), as they are used again later.
+Make sure **not** to use the -DLUA_USE_POSIX directive, because it makes the compiler to use  _setjmp/_longjmp instead a "normal" setjmp/longjmp, which fails later when you run the .js result....
 comment the LIBS directive, as it seems not to be used and creates a warning
@@ Line 40: / Line 45: @@
   emcc:
-        $(MAKE) comp MYCFLAGS=-DLUA_USE_POSIX
+        $(MAKE) comp MYCFLAGS=
@@ Line 52: / Line 57: @@
 build luac.js
-  emcc -o luac.js  luac.o print.o liblua.a
+  emcc -O2 -Wall  -o luac.js  luac.o print.o liblua.a
 test it
@@ Line 62: / Line 68: @@
 and load it via local webserver (''php -S localhost:8000'') into browser for testing
+===== Create own blockly Content =====
+  cp blockly_compressed.js blockly_uncompressed.js lua_compressed.js ../web/blockly/