I've been using the instruction @
https://github.com/kripken/emscripten/wiki/LLVM-Backend. I am using CentOS
6. I've compiled and installed emscripten-fastcomp and emscripten. I have
Python 2.6 installed. I have jre 7.51 installed. I have my .bashrc file
setup as:
export PATH=$PATH:/usr/local/bin:/dist/emscripten
export LLVM=/usr/local/bin
export PYTHON=/usr/bin/python2
export NODE=/usr/local/bin/node
export EMSCRIPTEN=/dist/emscripten
When I try to compile a simple program I get:
$ em++ -v test.cpp
DEBUG root: invocation: /dist/emscripten/emcc -v test.cpp
DEBUG root: compiling to bitcode
DEBUG root: emcc step "parse arguments and setup" took 0.00 seconds
DEBUG root: compiling source file: test.cpp
DEBUG root: running: /usr/local/bin/clang++ -DEMSCRIPTEN
-D__EMSCRIPTEN__ -fno-math-errno -target le32-unknown-nacl
-U__native_client__ -U__pnacl__ -U__ELF__ -nostdinc -Xclang -nobuiltininc
-Xclang -nostdsysteminc -Xclang
-isystem/dist/emscripten/system/local/include -Xclang
-isystem/dist/emscripten/system/include/compat -Xclang
-isystem/dist/emscripten/system/include/libcxx -Xclang
-isystem/dist/emscripten/system/include -Xclang
-isystem/dist/emscripten/system/include/emscripten -Xclang
-isystem/dist/emscripten/system/include/bsd -Xclang
-isystem/dist/emscripten/system/include/libc -Xclang
-isystem/dist/emscripten/system/include/gfx -Xclang
-isystem/dist/emscripten/system/include/net -Xclang
-isystem/dist/emscripten/system/include/SDL -U__i386__ -U__i386 -Ui386
-U__STRICT_ANSI__ -D__IEEE_LITTLE_ENDIAN -U__SSE__ -U__SSE_MATH__
-U__SSE2__ -U__SSE2_MATH__ -U__MMX__ -U__APPLE__ -U__linux__ -v -std=c++03
-emit-llvm -c test.cpp -o /tmp/tmpdBbyEQ/test_0.o
clang version 3.3
Target: le32-unknown-nacl
Thread model: posix
"/usr/local/bin/clang++" -cc1 -triple le32-unknown-nacl -emit-llvm-bc
-disable-free -main-file-name test.cpp -mrelocation-model static
-mdisable-fp-elim -mconstructor-aliases -v -coverage-file
/tmp/tmpdBbyEQ/test_0.o -nostdsysteminc -nobuiltininc -resource-dir
/usr/local/bin/../lib/clang/3.3 -D EMSCRIPTEN -D __EMSCRIPTEN__ -U
__native_client__ -U __pnacl__ -U __ELF__ -U __i386__ -U __i386 -U i386 -U
__STRICT_ANSI__ -D __IEEE_LITTLE_ENDIAN -U __SSE__ -U __SSE_MATH__ -U
__SSE2__ -U __SSE2_MATH__ -U __MMX__ -U __APPLE__ -U __linux__ -std=c++03
-fdeprecated-macro -fno-dwarf-directory-asm -fdebug-compilation-dir
/dist/simplifile -ferror-limit 19 -fmessage-length 142 -mstackrealign
-fobjc-runtime=gcc -fobjc-default-synthesize-properties -fcxx-exceptions
-fexceptions -fdiagnostics-show-option -fcolor-diagnostics -backend-option
-vectorize-loops -nobuiltininc -nostdsysteminc
-isystem/dist/emscripten/system/local/include
-isystem/dist/emscripten/system/include/compat
-isystem/dist/emscripten/system/include/libcxx
-isystem/dist/emscripten/system/include
-isystem/dist/emscripten/system/include/emscripten
-isystem/dist/emscripten/system/include/bsd
-isystem/dist/emscripten/system/include/libc
-isystem/dist/emscripten/system/include/gfx
-isystem/dist/emscripten/system/include/net
-isystem/dist/emscripten/system/include/SDL -o /tmp/tmpdBbyEQ/test_0.o -x
c++ test.cpp
clang -cc1 version 3.3 based upon LLVM 3.3svn default target
x86_64-unknown-linux-gnu
ignoring nonexistent directory "/dist/emscripten/system/local/include"
ignoring nonexistent directory "/dist/emscripten/system/include/bsd"
ignoring nonexistent directory "/dist/emscripten/system/include/net"
#include "..." search starts here:
#include <...> search starts here:
/dist/emscripten/system/include/compat
/dist/emscripten/system/include/libcxx
/dist/emscripten/system/include
/dist/emscripten/system/include/emscripten
/dist/emscripten/system/include/libc
/dist/emscripten/system/include/gfx
/dist/emscripten/system/include/SDL
End of search list.
DEBUG root: emcc step "bitcodeize inputs" took 0.02 seconds
DEBUG root: emcc step "bitcodeize inputs" took 0.00 seconds
DEBUG root: will generate JavaScript
DEBUG root: emcc step "calculate system libraries" took 0.01 seconds
DEBUG root: emcc step "link" took 0.00 seconds
DEBUG root: saving intermediate processing steps to /tmp/emscripten_temp
DEBUG root: emcc: LLVM opts: -internalize
-internalize-public-api-list=main,malloc,free -globaldce -S
DEBUG root: emcc step "post-link" took 0.01 seconds
DEBUG root: LLVM => JS
Traceback (most recent call last):
File "/dist/emscripten/emscripten.py", line 1405, in <module>
_main(environ=os.environ)
File "/dist/emscripten/emscripten.py", line 1393, in _main
temp_files.run_and_clean(lambda: main(
File "/dist/emscripten/tools/tempfiles.py", line 39, in run_and_clean
return func()
File "/dist/emscripten/emscripten.py", line 1401, in <lambda>
DEBUG_CACHE=DEBUG_CACHE,
File "/dist/emscripten/emscripten.py", line 1285, in main
shared.Building.ensure_struct_info(struct_info)
File "/dist/emscripten/tools/shared.py", line 1528, in ensure_struct_info
import gen_struct_info
File "/dist/emscripten/tools/gen_struct_info.py", line 78, in <module>
import sys, os, re, json, argparse, tempfile, subprocess
ImportError: No module named argparse
Traceback (most recent call last):
File "/dist/emscripten/emcc", line 1525, in <module>
final = shared.Building.emscripten(final, append_ext=False,
extra_args=extra_args)
File "/dist/emscripten/tools/shared.py", line 1276, in emscripten
assert os.path.exists(filename + '.o.js') and len(open(filename +
'.o.js', 'r').read()) > 0, 'Emscripten failed to generate .js: ' +
str(compiler_output)
AssertionError: Emscripten failed to generate .js:
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