Alon, You are brilliant! I modified the `configure` to fail the sigsetjmp test and it solved that problem. I am subsequently running into downstream problems (looks file i/o related) which I can continue to investigate.
Thanks again for your help, Sam On Thursday, January 2, 2014 6:00:04 PM UTC-7, azakai wrote: > > We have a few cases where stuff exists in headers but is not implemented - > because we use headers from musl, but have a js implementation that is not > 100% comprehensive yet. > > If you have a simple way to edit the configure step to manually fail those > tests, that could be the easiest workaround. Or, locally edit the > system/include headers to remove them. > > Perhaps we should remove stuff from headers that is not implemented yet, > but we try to not modify the musl headers to keep things close to upstream. > > - Alon > > > > On Thu, Jan 2, 2014 at 10:38 AM, Sam Reid <[email protected] <javascript:> > > wrote: > >> Hi there, I am attempting to build and run the ngspice circuit simulator >> under emscripten. I posted previously under a more specific thread topic >> "linker problem" but after resolving that I am hitting other issues I was >> hoping you could help with, so I decided to start a new thread. >> >> I'm using clang (and llvm) 3.2 with emscripten 1.7.8 on OSX 10.9.1. >> >> My current problem is that "sigsetjmp" and a few other symbols are >> unresolved, even though they appear to exist in the configure step. >> >> I'm building the project as described in >> https://github.com/kripken/emscripten/wiki/Building-Projects. When I >> run the configure step 'emconfigure ../configure', it reports: >> ... >> checking whether isnan is declared... yes >> checking for sigsetjmp... yes >> checking libiberty.h usability... no >> ... >> >> So it appears that sigsetjmp is discovered by the configure process. >> After 'emmake make' succeeds, I copy the binary file 'ngspice' to >> 'ngspice.o' (not sure if that's the right thing to do), and run the emcc >> compiler on ngspice.o. This reports: >> >> Sams-MacBook-Air:src samreid$ emcc ngspice.o -o ngspice.js >> warning: unresolved symbol: sigsetjmp >> warning: unresolved symbol: llvm_dbg_value >> warning: unresolved symbol: siglongjmp >> warning: unresolved symbol: logb >> warning: Casting a function pointer type to a potentially incompatible >> one (use -s VERBOSE=1 to see more) >> warning: See >> https://github.com/kripken/emscripten/wiki/CodeGuidelinesAndLimitations#function-pointer-issuesfor >> more information on dangerous function pointer casts >> warning: Casting a function pointer type to a potentially incompatible >> one (use -s VERBOSE=1 to see more) >> warning: See >> https://github.com/kripken/emscripten/wiki/CodeGuidelinesAndLimitations#function-pointer-issuesfor >> more information on dangerous function pointer casts >> sourcemapper: Unable to find original file for >> ../../../../src/spicelib/devices/dev.c at >> /Users/samreid/src/spicelib/devices/dev.c >> >> Note it said a few symbols are unresolved, though it does create a 30+MB >> js file. After manually fixing TOTAL_MEMORY (by doubling it in the js >> file), when I run under node, it fails with that error: >> >> Sams-MacBook-Air:src samreid$ node ngspice.js >> exception thrown: ReferenceError: _sigsetjmp is not >> defined,ReferenceError: _sigsetjmp is not defined >> at _baseaddr >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:43834:2) >> at _init_rlimits >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:43798:9) >> at Object._main >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:7086:2) >> at Object.callMain >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:941255:30) >> at doRun >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:941295:25) >> at run >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:941308:5) >> at Object.<anonymous> >> (/Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:941351:1) >> at Module._compile (module.js:456:26) >> at Object.Module._extensions..js (module.js:474:10) >> at Module.load (module.js:356:32) >> >> /Users/samreid/Downloads/ngspice-25/release/src/ngspice.js:941272 >> throw e; >> ^ >> Any ideas? I’m a bit stuck! >> >> Thanks! >> Sam >> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
