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doc:dev_blockly [2014/11/09 17:02] – admindoc:dev_blockly [2015/01/02 14:45] – admin
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 ===== Install emscripten ===== ===== 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 ===== ===== Compile Luac as javascript binary =====
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   CC= emcc   CC= emcc
 +  
 +make a note of the compiler flags, which are used (e.g. ''-O2 -Wall''), as they are used again later
      
 comment the LIBS directive, as it seems not to be used and creates a warning comment the LIBS directive, as it seems not to be used and creates a warning
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 build luac.js build luac.js
  
-  emcc -o luac.js  luac.o print.o liblua.a+  emcc -O2 -Wall -DLUA_USE_POSIX  -o luac.js  luac.o print.o liblua.a 
  
 test it test it
doc/dev_blockly.txt · Last modified: 2015/01/04 15:09 by admin