Hi All,
This one is just for the record so that if anyone happens to come here for
that reason can already find something:) I know that emscripten is
officially supported only on linux/win/osx (even though judging by the
scripts, it seems that earlier freebsd and dragonfly were supported as
well) but with a few changes I could make it work on NetBSD (actually 7.0)
as well. Here they are:
1) In the emsdk script I just hacked the platform check to let the
installer think it's running on linux: if platform.system()=='NetBSD' :
LINUX=true
2) Also in the emsdk script, there's one call to tar which I had to replace
with gtar.
That's already enough to be able to do ./emsdk update.
The toughest thing was to find a workaround to the $ORIGIN problem in
NetBSD. So I had to look up the places in clang/fastcomp/src/Makefile.rules
where $ORIGIN is used (there are two of them) and replace them as
follows(#commented line is changed to the one below it):
1)
ifneq ($(HOST_OS),Darwin)
#LD.Flags += $(RPATH) -Wl, '$$ORIGIN'
LD.Flags += -Wl, -install_name -Wl, "@rpath/lib$(LIBRARYNAME)$(SHLIBEXT)"
else
LD.Flags += -Wl, -install_name -Wl, "@rpath/lib$(LIBRARYNAME)$(SHLIBEXT)"
endif
2)
ifneq ($(HOST_OS),Darwin)
ifdef TOOLNAME
#LD.Flags += $(RPATH) -Wl, '$$ORIGIN/../lib'
LD.Flags += $(RPATH) -Wl, @executable_path/../lib
endif
else
...
$ORIGIN also appears in clang/fastcomp/src/CMakeLists.txt where I changed
the following:
1)
else(UNIX)
if(NOT DEFINED CMAKE_INSTALL_RPATH)
#set(CMAKE_INSTALL_RPATH "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}")
set(CMAKE_INSTALL_RPATH "@executable_path/../lib")
...
After all these ./emsdk install latest and ./emsdk activate latest can be
issued. As I checked this out in a vm, I also noted that 2GB ram was not
enough to build emscripten on NetBSD-7.0 but 3GB was. Interestingly enough
the compiled node 4.1.1 dumps but that one can be installed separately as
package anyway. I carried out a few tests with hello world examples,
compiling zlib in the test suite and they do work:) However, I must add
that I'm no NetBSD expert so the changes I made may not be the best ones
but at least let emscripten run on the system.
Best regards,
r0ller
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